A sensor device for determining the orientation of a magnet that is pivotable about a reference point. the sensor device includes a semiconductor substrate including a first and a second magnetic sensor spaced apart in a first direction, each configured for measuring a first magnetic field component oriented in the first direction, and a second magnetic field component oriented in a second direction; wherein the sensor device further includes a processing circuit configured for determining: i) a first magnetic field gradient; ii) a second magnetic field gradient; iii) a first angle based on the first magnetic field gradient; iv) a second angle based on the second magnetic field gradient. A sensor system includes the sensor device and the magnet.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
A force sensor has a sensing system including a target piece and a sensing element, configured to provide changes of a magnetic field, being generated by motion of the target piece. The sensing element senses these changes and provides a signal representative of the position of the target piece. An integrated circuit with processing means can process signals from the sensing element. A semiconductor package includes at least the integrated circuit. A flexible piece includes the target, and it is attached to the semiconductor package. The attachment area between the flexible piece and the semiconductor package does not extend beyond the top projection, or outline, of the semiconductor package. The flexible piece receives a force stimulus, so that upon exerting a force on the flexible piece, the displacement of the target piece with respect to the surface of the semiconductor package can be sensed by the sensing element.
G01G 7/02 - Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in groups by electromagnetic action
A47J 42/44 - Automatic starting or stopping devicesWarning devices
G01L 1/04 - Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
A current supervisory device includes current sensing means for sensing a current; a circuit arranged to convert a signal received from the current sensing means into a signal indicative of the sensed current; a processing circuit arranged to receive the signal indicative of the sensed current, to detect an event based on the received signal such that the detecting yields an outcome corresponding to one of at least two different states, and to generate an event signal in accordance with the outcome, such that the processing circuit has modulation means for performing modulation based on the event signal; and an output terminal arranged to output a reporting signal received from said processing circuit, whereby at least one of at least two different states gives rise to the reporting signal being a modulated signal.
A method of measuring motion of a wheel comprises providing a first acceleration sensor (108) and a second acceleration sensor (110) configured to measure acceleration in respect of a first measurement axis and a second measurement axis. The second measurement axis is substantially orthogonal to the first measurement axis. First accelerations in respect of the first and second measurement axes are measured (204) and then a predetermined period of time is awaited (220) before second accelerations in respect of the first and second measurement axes are made (204). An estimate of change of acceleration is then calculated (206-210) by formulaically combining the first and second accelerations measured.
The present invention relates to a sensor system for safety-critical applications comprising at least one sensor device, which includes a sensor for measuring a physical parameter and generating a corresponding signal, a signal processing chain for processing this signal, and an interface for handling an external synchronization signal. The device also features a transient signal generator that produces a transient and a coupling element for introducing the transient signal into the signal processing chain's input such that the transient signal which is coupled to the signal processing chain has a predetermined relation with the synchronization signal. This configuration allows for the detection of errors within the sensor device and/or calibration of the sensor system by measuring the time difference between the synchronization signal and the detection moment of the transient signal.
A current-sensing system for fault detection includes a sensing element for detecting a magnetic field and a magnetic core that encloses at least two target conductors. The sensing element is mechanically uncoupled from the magnetic core, and it is designed to detect a component of the magnetic field superposition by currents in the target conductors, the field being generated inside the core and traversing an opening in the core. The sensing element provides an output signal indicative of this superposition. The system is able to detect the combined magnetic field effects of multiple currents, enabling accurate fault detection in electrical systems.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
7.
METHODS AND DEVICES FOR MEASURING A MECHANICAL FORCE
Sensor device for sensing a mechanical force, comprising: a substrate comprising one or more magnetic sensors (M1, M2, M3); an elastomer having a first surface area (111) fixedly arranged relative to the substrate, and having a second surface area (112) for receiving said force (F); magnetic material (104) arranged inside the elastomer such that the magnetic material will move when said force is exerted upon the second surface area (112); one or more pressures or stress sensors (P1, P2, P3) for sensing a pressure or stress induced by said force (F); a processing circuit (1130) for determining one or more force components of the force (F) exerted upon the second surface area (112), based on the sensor signals from the magnetic and/or pressure sensors; the magnetic sensors and the pressure sensors having a fixed relative position. Method (1000) of measuring a force.
G01L 1/04 - Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01L 5/1627 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
G01L 5/169 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using magnetic means
G01L 5/22 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
G01L 1/26 - Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
8.
ANGULAR POSITION SENSOR WITH HIGH ACCURACY, DEVICE, MAGNETIC SOURCE AND SYSTEM
A sensor device (100) for determining an absolute angular position (θ) of a magnetic source (110) having an inner magnet portion (111) being a magnetic dipole, and an outer magnet portion (112) being a multipole ring magnet, the sensor device being a single packaged device comprising: a first sensor group for measuring a first set of at least two magnetic field components or magnetic field gradients at a first sensor location (gc1); a second sensor group for measuring a second set of at least two magnetic field components or magnetic field gradients at a second sensor location (gc2) spaced from the first sensor location (gc1) by a predefined distance (ds); output means for outputting the first and second set of signals, or one or more signals derived therefrom. Said magnetic source (110). An angular position sensor system (120; 1420) comprising said sensor device and said magnetic source.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
A linear magnetic position sensor circuit includes at least one first sensor arranged to generate a first sensing signal indicative of a first magnetic field gradient of a first magnetic field component oriented in a first direction; a second sensor arranged to generate a second sensing signal indicative of a second magnetic field gradient of a second magnetic field component oriented in a second direction different from the first direction; a processing circuit arranged to compute a gradient magnitude value. The processing circuit is arranged to output a position signal based on a ratio of the first and the second sensing signal if the magnitude value is higher than the first predetermined value and to output a position signal based on a predetermined stored value and/or based on a function of the magnitude value if the magnitude value is lower than the first predetermined value.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
A current sensor device for measuring a current in a conductor comprising: current sensing means comprising a magnetic sensing element for contactlessly measuring the current; amplification means arranged to act in a first and second state, said amplification means in said first and second state being arranged for amplifying a first and second signal, respectively, from said current sensing means with an adjustable first gain and a second gain and a first and second bandwidth to yield a first and second amplified signal, respectively, wherein said first gain is higher than the second gain, wherein the first gain and the second gain are larger than 1; processing means for controlling at least said first gain, for detecting an event based on at least said second amplified signal and for producing a signal indicative of said event; an output terminal arranged for outputting a signal indicative of said current based on said first amplified signal; and an output terminal arranged for outputting said signal indicative of the event.
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
G01R 31/3832 - Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration without measurement of battery voltage
A method of calibrating a magnetic sensor system and a sensor system are provided. The position of a magnetic structure with a master and nonius tracks is changed over a calibration range while measuring at least four components of the magnetic field generated by the magnetic structure. Uncorrected positions of the structure are determined and compared with corresponding reference positions. A periodic function is obtained by calculating two coefficients of the function, such that the function applied to the uncorrected positions minimize the error from the comparison with the reference positions.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
Semiconductor Hall sensor structure A Hall sensor structure (100) that comprises a dielectric layer (120), which is located between a semiconductor substrate (110) and an active region. The active region comprises a Hall plate (140) of a first conductivity type, contact terminals (141) 5 connected to the Hall plate (140) for applying a current through the Hall plate (140) and reading a sensing signal from the Hall plate, and a deep layer (130) of a second conductivity type different from the first conductivity type. The deep layer (130) is located between the Hall plate (140) and the dielectric layer (120).
A method is for determining current flow in a battery cell during manufacturing of the battery cell is provided. The method includes arranging a contactless current sensor relatively to the battery cell, wherein the contactless current sensor comprises at least one current sensing element; performing at least one of: filling the battery cell with an electrolyte, charging the battery cell, and discharging the battery cell; and determining, by the contactless current sensor, a current flow within the battery cell during or after the at least one of the filling the battery cell with the electrolyte, the charging the battery cell, and the discharging the battery cell. Further, a contactless current sensor, and a corresponding manufacturing equipment are provided.
A magnetoelastic torque sensor system comprising a shaft having at least one axial section magnetized in a circumferential direction; and a magnetic sensor device comprising three or four magnetic sensors; the sensor device being arranged in the vicinity of the shaft; the sensor device comprising a first semiconductor substrate having a processing circuit, a second semiconductor substrate having a first magnetic sensor, and a third semiconductor substrate having a second magnetic sensor (S2), each magnetic sensor configured for measuring a magnetic field component; wherein the first, second and third semiconductor substrates are incorporated in a single packaged device; the system being configured for determining a torque exerted upon the shaft, based on the measured field components, or based on pairwise differences thereof. A method of measuring a torque exerted upon a shaft.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
A hybrid position sensor for determining a position of a hybrid target includes a conductive target and a magnet configuration which are rigidly connected and at least partially overlapping. The position sensor has a first transducer configured for generating a first signal induced by the conductive target and indicative for the position of the hybrid target; a second transducer, at least partially overlapping with the first transducer, and configured for generating a second signal induced by the magnet configuration and indicative for the position of the hybrid target; a processing device configured for receiving the first signal to determine a first position of the hybrid target and for receiving the second signal to determine a second position of the hybrid target and for determining reliability of the position sensor based on the determined first and second position.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
16.
METHOD AND DEVICE FOR DETERMINING A DIGITAL VALUE INDICATIVE OF A PHYSICAL QUANTITY TO BE MEASURED
A method of providing a digital value indicative of a physical quantity to be measured by a sensor circuit or a bridge circuit that has two excitation nodes and at least one output node, comprises the steps of: a) applying a time-varying biasing signal to the excitation nodes, causing at least one output-node to provide a time-varying output signal; b) determining a first time value or a first count value or a first index related to a first event at which the first output signal passes a first threshold signal; c) providing a digital value indicative of the physical quantity to be measured based on said at least one time value or count value or index value.
A lead frame for a current sensor is provided. The frame includes a conductive piece with an average thickness, and a sensing zone for generating a signal detectable by a current sensing element when current flows through the lead frame. It also includes a routing zone outside the sensing zone for routing current towards the sensing zone. The routing zone comprises a region with the largest area having a predetermined average thickness. At least the sensing zone includes additional material disposed on the conductive piece so the total thickness of the sensing zone is thicker than the average thickness of said largest area.
A position sensor is for determining the position of a conductive target using a transmit coil and a plurality of receive coils. The receive coils may each include two strands and a strand may be obtained from a conversion of a substantially sinusoidal primitive function. The position sensor may realize a reduction of harmonics in signals from the receive coils.
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
A position sensor is for determining the position of a conductive target using a transmit coil and a plurality of receive coils. The receive coils may each include two strands and a strand may be obtained from a conversion of a substantially sinusoidal primitive function. The position sensor may realize a reduction of harmonics in signals from the receive coils.
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
20.
MAGNETIC SENSOR DEVICES, SYSTEMS AND METHODS, AND A FORCE SENSOR
A magnetic sensor system includes: an integrated circuit having a semiconductor substrate, which has a plurality of magnetic sensors configured for measuring at least two first magnetic field components oriented in a first direction, and for measuring at least two second magnetic field components oriented in a second direction; a permanent magnet movable relative to the integrated circuit and configured for generating a magnetic field; a processing circuit configured for determining at least two physical quantities related to a position of the magnet, using a predefined algorithm based on the measured first and second magnetic field components or values derived therefrom, as inputs, and that uses a plurality of at least eight constants which are determined using machine learning. A force sensor system, a joystick or thumbstick system, and a method employ features of the magnetic sensor system.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
CSEM CENTRE SUISSE D’ELECTRONIQUE ET DE MICROTECHNIQUE SA (Switzerland)
Inventor
Close, Gael
Tormen, Maurizio
Gasparin, Enrico
Hoogerwerf, Arnold Christiaan
Bayat, Dara
Despont, Michel
Abstract
A MEMS structure (100) comprising: a first platform (101) comprising a first material, and further comprising an object or layer of a second, magnetic material (M2), having a first magnetization; and a second platform (102) comprising a third material, and optionally further comprising an object or layer of a fourth material (M4) being a non-magnetic material, or being magnetic and having a second magnetization different from the first magnetization; the first platform and the second platform being movable in a first direction (X) caused by an ambient acceleration and/or by an ambient magnetic field gradient; at least one sensor (S1). A sensor device comprising said MEMS structure and a processing circuit (111) connected to said sensor. A method (900) of determining a magnetic field gradient using said MEMS structure.
G01P 15/105 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by magnetically sensitive devices
G01P 15/125 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up
A torque sensor device for measuring a torque acting on a rotatable shaft assembly comprising a first multipole magnet (M1) and a second multipole magnet (M2); the rotatable shaft having an inner shaft portion and an outer shaft portion, at least one of which is elastically deformable; and a first and a second multipole magnet (M1, M2); the sensor device comprising a plurality of magnetic sensors for measuring one or more magnetic field components; and a processing circuit for determining a first and a second angle (θ1, θ2), and for determining an angular difference, and for providing a signal indicative of a torque. A torque sensor system. A method of determining a torque.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
23.
Inductive angle sensor and inductive torque sensor
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
An inductive angle sensor includes a transmitter coil and an excitation circuit; a first set of receiver coils has a geometry with a first periodicity N; a first movable coupling element has a periodic geometry with said first periodicity N; a second set of receiver coils has a geometry with a second periodicity M smaller than the first periodicity N; a second movable coupling element having a periodic geometry with said second periodicity M; wherein a ratio N/M of the first periodicity N and the second periodicity M is equal to 1.5. A torque sensor includes an inductive angle sensor and a torque bar. A printed circuit board includes the plurality of coils.
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
H01F 27/36 - Electric or magnetic shields or screens
A position sensor system is arranged for determining a position of a sensor device movable along a predefined path relative to a magnetic source. The system includes the magnetic source and the sensor device. The magnetic source has a first plurality of magnetic pole pairs arranged along a first track and a second plurality of magnetic pole pairs arranged along a second track, centrelines of the tracks are spaced apart by a predefined track distance. The sensor device is configured for measuring at least two orthogonal magnetic field components at a first sensor location, and at least two second orthogonal magnetic field components at a second sensor location. The first and second sensor location are spaced apart by a predefined sensor distance smaller than the predefined track distance, in a direction transverse to the tracks.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
Method of determining a position of a sensor device relative to a magnetic source, includes: a) determining a first and a second magnetic field component at a first sensor location; b) determining a third and a fourth magnetic field component at a second sensor location; c) determining a first difference of the first and third component, and determining a second difference of the second and fourth component, and determining a first angle based on a ratio of the first and second difference; d) determining a first sum of the first and third component, and determining a second sum of the second and fourth component; e) determining a second angle based on a ratio of said first and second sum; f) comparing the first and second angle to detect error.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01P 3/44 - Devices characterised by the use of electric or magnetic means for measuring angular speed
27.
Magnetic position sensor system, method and device with error detection
Method of determining a position of a sensor device relative to a magnetic source, includes: a) determining a first and a second magnetic field component at a first sensor location; b) determining a third and a fourth magnetic field component at a second sensor location; c) determining a first difference of the first and third component, and determining a second difference of the second and fourth component, and determining a first angle based on a ratio of the first and second difference; d) determining a first sum of the first and third component, and determining a second sum of the second and fourth component; e) determining a second angle based on a ratio of said first and second sum; f) comparing the first and second angle to detect error.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01P 3/44 - Devices characterised by the use of electric or magnetic means for measuring angular speed
28.
DEVICE AND METHOD FOR DETERMINING AN ORIENTATION OF A MAGNET, AND A JOYSTICK
A method of determining an orientation of a magnet which is pivotable about a reference position having a predefined position relative to a silicon substrate, includes: providing a silicon substrate; determining a first/second magnetic field gradient along a first/second direction; determining a first/second angle based on said first/second magnetic field gradient and a first/second correction value. A sensor device configured for performing this method. A sensor system includes such sensor device and a magnet, optionally connected to a joystick.
A method of testing a sensor device includes a single angle calculator and at least two magnetic sensor elements. The method includes the steps of: a) obtaining signals from the sensor elements; b) amplifying and digitizing the signals from the sensor elements; c) applying a first input value IN1 derived from the digitized signal, to the angle calculator, to obtain a first angle value; d) applying a second input value IN2 derived from the digitized signal, to the angle calculator, to obtain a second angle value; e) performing a consistency test of the first and second angle value; f) detecting an error of the sensor device or the angle calculator based on an outcome of the consistency test.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
30.
SENSOR DEVICE WITH CIRCUIT AND INTEGRATED COMPONENT FOR MAGNETO-IMPEDANCE MEASUREMENT, AND METHOD OF PRODUCING SAME
A sensor device comprising: a semiconductor substrate (100) comprising an excitation circuit (101) and a sensing circuit (102) for measuring a magneto-impedance effect of a soft-magnetic component (110) arranged on top of the semiconductor substrate (100); wherein the soft-magnetic component is operatively connected to said excitation circuit and said sensing circuit, and is electrically connected to at least one of said excitation circuit and said sensing circuit by means of back contacts or side contacts; wherein the soft-magnetic component has an elongated shape or an elongated portion extending in a first direction (X) parallel to the semiconductor substrate (100); a processing circuit (506) connected to the sensing circuit, and configured for providing a signal indicative of the measured impedance or a value derived therefrom. A method (263; 2730; 2830) of producing such a semiconductor substrate.
The present invention provides a current sensor for sensing a through two different conductors. The sensor comprises a magnetic sensor configured to read a magnetic field induced by the first and second currents. The sensor is configured also to provide a first signal representative of a magnetic field parameter in a first direction and configured to provide at least a second signal representative of a magnetic field parameter in a second direction different from the first direction.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
A current sensor is provided for a target conductor, of a plurality of conductors. It includes at least one magnetic sensor configured to provide two signals representative of two different parameters of the field being different components or directional derivatives (e.g. a gradient) thereof. It also includes a processor configured for deriving a signal indicative of the current based on a linear combination of the first signal and the at least second signal. At least one of these signals is weighted by a coefficient, being a constant chosen in accordance with a distance, in at least the first or second direction, between the sensor and at least one conductor of the plurality. The coefficient is chosen to reduce a contribution of a parasitic magnetic field in the signal indicative of the current in the first conductor, where the parasitic magnetic field is generated by at least a further conductor.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
33.
SENSOR DEVICE WITH CIRCUIT AND INTEGRATED COMPONENT FOR MAGNETO-IMPEDANCE MEASUREMENT, AND METHOD OF PRODUCING SAME
A sensor device including a semiconductor substrate having an excitation circuit and a sensing circuit for measuring a magneto-impedance effect of a soft-magnetic component arranged on top of the semiconductor substrate. The soft-magnetic component is operatively connected to the excitation circuit and the sensing circuit, and is electrically connected to at least one of the excitation circuit and the sensing circuit by means of back contacts or side contacts. The soft-magnetic component has an elongated shape or an elongated portion extending in a first direction parallel to the semiconductor substrate; a processing circuit connected to the sensing circuit, and configured for providing a signal indicative of the measured impedance or a value derived therefrom. A method is provided for producing such a semiconductor substrate.
A semiconductor device includes a semiconductor substrate, having an excitation circuit for applying an excitation signal, and a soft-magnetic component for guiding magnetic flux lines. The soft-magnetic component is electrically connected to the excitation by at least two electrical contacts in the form of back contacts or side contacts. The substrate further includes at least one electromagnetic transducer operatively connected to the soft-magnetic component. The excitation circuit includes a modulator for providing a modulated signal to the soft-magnetic component to modulate its magnetic permeability. The substrate further has a demodulator configured to demodulate signals obtained from the at least one electromagnetic transducer.
In a first aspect, the present invention relates to a system for sensing a displacement (d) along a direction y of a magnet relative to a sensor, comprising: (i) a sensor for measuring a first magnetic field component Bu along a direction u, and a second magnetic field component Bz along a direction z, substantially orthogonal to u and y; and (ii) a magnet above the sensor in the z-direction, the magnet having a magnetization direction substantially perpendicular to a major surface of the magnet, substantially perpendicular to the z-direction and different from the y-direction.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/16 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
36.
SEMICONDUCTOR DEVICE WITH INTEGRATED SOFT-MAGNETIC COMPONENT, AND METHOD OF PRODUCING SAME
A semiconductor device comprising a semiconductor substrate, the substrate comprising an excitation circuit for applying an excitation signal, and a soft-magnetic component for guiding magnetic flux lines; the soft-magnetic component being electrically connected to said excitation by means of at least two electrical contacts in the form of back contacts or side contacts; the substrate further comprising at least one electromagnetic transducer operatively connected to the soft-magnetic component; the excitation circuit comprises a modulator for providing a modulated signal to the soft-magnetic component to modulate its magnetic permeability; the substrate further comprising a demodulator configured to demodulate signals obtained from the at least one electromagnetic transducer.
A contactor includes: a first and second power terminal; a sub-circuit connected between this first and second power terminal and comprising the following three elements connected in series: an electrical conductor portion, a primary switch, and a fuse. The primary switch has a movable part driven by an actuator. The contactor further has a magnetic sensor for measuring a primary current flowing through the electrical conductor portion, and a controller connected to the magnetic sensor and to the actuator. The controller has a communication port for receiving commands. The contactor can detect whether the primary switch is actually open. The controller is configured for: (i) receiving a command to open the switch; (ii) operating the actuator, (iii) detecting if the primary switch is actually open; and (iv) blowing the fuse if the switch is not open.
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 1/00 - Details of emergency protective circuit arrangements
H02H 3/05 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with means for increasing reliability, e.g. redundancy arrangements
38.
Device and method for determining an orientation of a magnet, and a joystick
A method of determining an orientation α,β of a magnet which is pivotable about a reference position having a predefined position relative to a semiconductor substrate, comprising: a) determining at least two of the following magnetic field gradients: i) a first magnetic field gradient dBx/dx; ii) a second magnetic field gradient dBy/dy; iii) a third magnetic field gradient dBz/dx; iv) a fourth magnetic field gradient dBz/dy; b) determining a first angle α based on at least one of the magnetic field gradients; c) determining a second angle β based on at least one of the magnetic field gradients. A sensor device is configured for performing this method. A sensor system includes such sensor device and a magnet, optionally connected to a joystick.
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
A sensor device includes a silicon substrate having an active surface; a first sensing area disposed near a first edge of the active surface of the silicon substrate such that the first sensing area has at least one first magnetic sensing element is made of a first compound semiconductor material and contact pads; and a second sensing area disposed near a second edge of the active surface of the silicon substrate, such that the second edge is substantially opposite to the first edge, such that the second sensing area has at least one second magnetic sensing element made of a second compound semiconductor material and contact pads. A processing circuit is disposed of in the silicon substrate and is electrically connected via wire bonds and/or a redistribution layer with the contact pads of the first and second sensing areas.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
A temperature sensor comprising at least one temperature sensing circuit. Each temperature sensing circuit comprise a series connection of a first connecting node, a first capacitor connected to a first reset transistor for biasing the first capacitor to a first bias voltage, a bias transistor for distributing charges between the first and second capacitor after biasing the first and second capacitor, a second capacitor connected to a second reset transistor for biasing the second capacitor to a second bias voltage, a second connecting node. Each temperature sensing circuit comprises at least one voltage readout node between the first capacitor and the second capacitor.
The present invention relates to an error detection circuit or detecting an error in a connection of an electrical component. The error detection circuit comprises a control circuit, a terminal arranged to connect the electrical component, and a driving means, coupled to the terminal and arranged to be controlled by the control circuit. The driving means is arranged to drive a current on receipt of a control signal (Vctl) from the control circuit and the control circuit is further arranged to receive in response to the current a measurement signal via the terminal, to determine based on a characteristic of the measurement signal a possible error and to communicate an error signal based on the determining.
G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
A method of determining a linear or angular position of a magnetic sensor device relative to a magnetic source, or vice versa, the sensor device includes at least four magnetic sensor elements. The method involves the steps of: a) determining a first magnetic field gradient; b) determining a second magnetic field gradient; c) determining a ratio of the first and second magnetic field gradient; d) converting the ratio into a position; while matching signal paths of the magnetic sensor elements so as to improve signal-to-noise.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01K 13/00 - Thermometers specially adapted for specific purposes
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
A system for determining a slip condition is provided. The system comprises at least one soft sensor element, wherein each of the at least one soft sensor elements comprises a sensor, a deformable element, wherein the deformable element is deformable by the force, and at least one element for reacting with the sensor to produce data indicative of the applied force by a deformation of the deformable element, wherein the deformable element extends at least partially between the sensor and the at least one element, and a processing means, wherein the processing means is configured to receive data from the at least one the soft sensor element, and determine whether a slip condition is met based on the received data. Further, a corresponding method is provided.
A method of manufacture of a force sensor and a force sensor is provided. The force sensor can be used to measure contact forces. The force sensor includes a substrate with an electromagnetic sensing element for contactless sensing of a field formed by a target. The target is included in a flexible piece which receives the force, and can deform by it. The flexible piece is treated so that the force sensor is reliable and has long durability.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
Assembly of integrated soft force sensor A method of manufacture of a force sensor and a force sensor is provided. The force sensor can be used to measure contact forces. The force sensor includes a substrate with an electromagnetic sensing element for contactless sensing of a field formed by a target. The target is included in a flexible piece which receives the force, and can deform by it. The flexible piece is treated so that the force sensor is reliable and has long durability.
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 9/14 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means involving the displacement of magnets, e.g. electromagnets
A magneto-elastic torque sensor system comprising a shaft having at least one axial section magnetized in a circumferential direction; and a magnetic sensor device arranged in the vicinity of the shaft; the sensor device comprising a first semiconductor substrate (109) having a processing circuit, a second semiconductor substrate (106a) having a first magnetic sensor (S1), and a third semiconductor substrate (106b) having a second magnetic sensor (S2), each magnetic sensor configured for measuring a magnetic field component; wherein the first, second and third semiconductor substrates are incorporated in a single packaged device; and wherein the processing circuit is configured for determining a pairwise difference between the magnetic field components, and for outputting a signal or a value indicative of a torque exerted upon the shaft, based on said pairwise difference. A method of measuring a torque exerted upon a shaft.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
47.
MAGNETIC SENSOR DEVICE, AND METHOD OF PRODUCING SAME
A wafer-level packaged magnetic sensor device includes: a first semiconductor substrate having a processing circuit configured for receiving a plurality of sensor signals, and for determining at least one difference signal, and for providing an output signal derived from said difference signal. A plurality of sensor substrates include a second semiconductor substrate with a first magnetic sensor, and a third semiconductor substrate with a second magnetic sensor the first semiconductor substrate being arranged at a location between the plurality of sensor substrates. The substrates are electrically connected by means of at least one redistribution layer.
H10N 59/00 - Integrated devices, or assemblies of multiple devices, comprising at least one galvanomagnetic or Hall-effect element covered by groups
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
48.
MAGNETOELASTIC TORQUE SENSOR DEVICE, SYSTEM AND METHOD
A magnetoelastic torque sensor system includes a shaft having at least one axial section magnetized in a circumferential direction; and a magnetic sensor device arranged in the vicinity of the shaft. The sensor device has a first semiconductor substrate having a processing circuit, a second semiconductor substrate having a first magnetic sensor, and a third semiconductor substrate having a second magnetic sensor. Each magnetic sensor is configured for measuring a magnetic field component. The first, second and third semiconductor substrates are incorporated in a single packaged device. The processing circuit is configured for determining a pairwise difference between the magnetic field components, and for outputting a signal or a value indicative of a torque exerted upon the shaft, based on said pairwise difference. A method of measuring a torque exerted upon a shaft is provided.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
A current sensor system for accurately measuring an AC electrical current having frequencies up to 2 kHz, the system comprising: an electrical conductor (e.g. busbar) for conducting said AC current thereby creating a first magnetic field; a magnetic sensor device for measuring a magnetic field component or gradient; an object (e.g. a metal plate) having an electrically conductive surface arranged in the vicinity of said conductor for allowing eddy currents to flow in said surface, thereby creating a second magnetic field which is superimposed with the first magnetic field; wherein the magnetic sensor device is configured for determining the current as a signal or value proportional to the measured component or gradient. The metal plate may have an opening. The current sensor system may further comprise a shielding.
Method of determining a position (x; x, y) of a sensor device movable relative to a magnetic source, or vice versa; the sensor device comprising at least two magnetic sensors; the method comprising the steps of: a) obtaining a plurality of magnetic sensor signals from said magnetic sensors; b) determining or estimating the position of the sensor device based on said plurality of sensor signals or signals derived therefrom; wherein step b) comprises: determining said position (x; x, y) using an artificial neural network; the artificial neural network being a recurrent neural network trained for determining said position using at most three hundred trainable parameters per degree of freedom. A position sensor system. A position sensor device.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]
G06N 3/084 - Backpropagation, e.g. using gradient descent
51.
MAGNETIC POSITION SENSOR SYSTEM, DEVICE AND METHOD
Method of determining a position (f a sensor device movable relative to a magnetic source, or vice versa; the sensor device comprising at least two magnetic sensors; the method comprising the steps of: a) obtaining a plurality of magnetic sensor signals from said magnetic sensors; b) determining or estimating the position of the sensor device based on said plurality of sensor signals or signals derived therefrom; wherein step b) comprises: determining said position (sing an artificial neural network; the artificial neural network being a recurrent neural network trained for determining said position using at most three hundred trainable parameters per degree of freedom. A position sensor system. A position sensor device.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G06N 3/044 - Recurrent networks, e.g. Hopfield networks
A sensor array for measuring a force is provided. The sensor array comprises a plurality of soft sensor elements, the soft sensor elements each comprising a sensor, a deformable element, wherein the deformable element is deformable by the force, and at least one element for reacting with the sensor for measuring the force by a deformation of the deformable element, wherein the deformable element extends at least partially between the sensor and the at least one element. Further, a method for measuring a force using a sensor array is provided.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01L 5/101 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors inserted into the flexible member
G01L 5/164 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in inductance
An integrated sensor device includes: a semiconductor substrate comprising a horizontal Hall element, and an integrated magnetic flux concentrator located substantially above said horizontal Hall element, wherein the first magnetic flux concentrator has a shape with a geometric center which is aligned with a geometric centre of the horizontal Hall element; and wherein the shape has a height H and a transversal dimension D, wherein H≥30 μm and/or wherein (H/D)≥25%. The integrated magnetic flux concentrator may be partially incorporated in the “interconnection stack”. A method is provided for producing such an integrated sensor device.
A current sensor system has a conductor and a packaged integrated circuit for sensing a current in the conductor. The conductor is external to the packaged integrated circuit. The packaged integrated circuit includes a substrate having an active surface and a back surface; one or more magnetic sensing elements; a processing circuit arranged to process signals received from the one or more magnetic sensing elements to derive an output signal indicative of a sensed current in the conductor; a housing; a plurality of leads; electrical connections between the leads and the active surface. The back surface of the substrate is disposed on a support formed by at least two inner lead portions of the plurality of leads and the active side of the substrate is oriented towards the outer ends of the outer lead portions of the leads in a direction perpendicular to a plane defined by the support.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
A method of producing a semiconductor substrate comprising at least one integrated magnetic flux concentrator, comprising the steps of: a) providing a semiconductor substrate having an upper surface; b) making at least one cavity in said upper surface; c) depositing one or more layers of one or more materials, including sputtering at least one layer of a soft magnetic material; d) removing substantially all of the soft magnetic material that is situated outside of the at least one cavity, while leaving at least a portion of the soft magnetic material that is inside said at least one cavity. A semiconductor substrate comprising at least one integrated magnetic flux concentrator. A sensor device or a sensor system, a current sensor device or system, a position sensor device or system, a proximity sensor device or system, an integrated transformer device or system.
An integrated circuit includes: a magnetic sensor for outputting a magnetic sensor signal indicative of a first current in a conductor; a shunt interface for outputting a shunt signal indicative of a second current across an external shunt resistor; a processing circuit for receiving the magnetic sensor signal and the shunt signal; and a communication interface for providing a signal indicative of a measured current based on one or more of the first current and the second current. The integrated circuit can compare the magnetic sensor signal and the shunt signal and provide an output signal in response to the magnetic sensor signal and the shunt signal.
G01R 1/20 - Modifications of basic electric elements for use in electric measuring instrumentsStructural combinations of such elements with such instruments
A soft sensor arrangement for measuring a force includes a sensor, a deformable element deformable by the force, and an element for reacting with the sensor for measuring the force by a deformation of the deformable element. The deformable element extends at least partially between the sensor and the element.
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
A soft sensor arrangement for measuring a force is presented. The soft sensor arrangement comprises a sensor, a deformable element, wherein the deformable element is deformable by the force, and an element for reacting with the sensor for measuring the force by a deformation of the deformable element, wherein the deformable element extends at least partially between the sensor and the element. In operation, the soft sensor arrangement receives a signal from the sensor reacting with the element, when the deformable element extending at least partially between the sensor and the element (130) is deformed by the force, and estimates the strength of the force from the received signal based on a predefined correlation between values of the force and values of the signal of the sensor. In addition, a gripper with at least two robotic fingers is disclosed, wherein at least one of the at least two robotic fingers comprises a soft sensor arrangement according to the invention. The gripper operates by elongating a distance between the at least two robotic fingers until the distance between the at least two robotic fingers can accommodate the object to be gripped, gripping the object by reducing the distance between the at least two robotic fingers, thereby applying a force to the object, measuring the force applied to the object by the two robotic fingers by the reaction of the sensor to the element, and controlling the movement of the at least two robotic fingers based on the measurement of the force.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
G01L 1/26 - Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
G01L 5/22 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
A sensor device comprising: a lead frame; a first/second semiconductor die having a first/second sensor structure at a first/second sensor location, and a plurality of first/second bond pads electrically connected to the lead frame; the semiconductor dies having a square or rectangular shape with a geometric center; the sensor locations are offset from the geometrical centers; the second die is stacked on top of the first die, and is rotated by a non-zero angle and optionally also offset or shifted with respect to the first die, such that a perpendicular projection of the first and second sensor location coincide.
H01L 25/065 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
A current sensor arrangement for measuring an AC electrical current, comprising: an electrical conductor having three transverse rectangular cut-outs; a sensor device comprising two sensor elements spaced apart along a first direction for measuring two magnetic field components oriented in said first direction, and configured for determining a magnetic field difference or magnetic field gradient, and for determining the AC current based on said difference or gradient. The sensor device is positioned at a particular location relative to the second cut-out, such that the magnetic field difference or gradient is substantially proportional to the AC current for frequencies from 100 Hz to 2 kHz. A current sensor system. A method of measuring an AC current with improved accuracy.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
The present invention relates to a field-sensor device comprising a reference field sensor providing a reference sensor signal in response to a field, a calibrated field sensor providing a calibrated sensor signal in response to the field, a reference circuit connected to the reference field sensor and adapted to receive a reference signal, and an adjustable circuit connected to the calibrated field sensor and adapted to receive a calibrated signal. When the adjustable circuit is adjusted with the calibrated signal, said calibrated signal being different from the reference signal, the calibrated field sensor provides a calibrated sensor signal substantially equal to the reference sensor signal. The field sensor device is arranged to be exposed, when in a calibration mode, to a uniform calibration field and, when in operational mode, to an operational field being a field gradient.
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
An electronic circuit device for acquiring an analog signal. The device comprising: a data line, one or more control lines (of which at least a clock line, and configured for transmitting a stored digital measurement result using the data line and the one or more control lines, in accordance with a synchronous serial communication protocol; a detection means for recognizing a synchronization pulse on one of the one or more control lines or on the data line; wherein the device is configured for repetitively measuring the analog signal or for measuring the analog signal triggered by the synchronization pulse; and for storing one or more digital measurement results or combinations thereof when triggered by the synchronization pulse.
A current sensor is described comprising an integrated circuit for sensing electric currents comprising an active side, the active side comprising at least one sensing element and at least one contact pad and a housing comprising material embedding the integrated circuit arranged for allowing electric connection to the at least two contact pads of the active side of the integrated circuit. The housing comprises at least one conductive via disposed outside the integrated circuit and connected to the at least one contact pad, for distributing signals from the at least one contact pad through the housing away from the active side of the integrated circuit.
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
H01L 21/768 - Applying interconnections to be used for carrying current between separate components within a device
A current sensor system for measuring an AC electrical current, includes: an electrical conductor portion for conducting the AC current and generating a first magnetic field; a U-shaped magnetic shielding partially surrounding said electrical conductor portion, and having a central shielding portion and two shielding leg portions; a metal plate or a metal layer arranged at a distance from the shielding legs portions for allowing eddy currents to flow and for generating a second magnetic field; a magnetic sensor device arranged between the conductor portion and the metal plate or metal layer, and between the shielding leg portions, configured for measuring a magnetic field component. The sensor system likewise includes a three-phase current sensor system.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
A sensing system and a method for sensing position include a first magnetic track comprising a first number of multipoles for generating a magnetic field solidarily fixed to a second magnetic track for generating a magnetic field and a second sensor for sensing magnetic field, forming a magnetic structure. At least two sensors are included. The first sensor is positioned proximal to the first magnetic track, closer to the first magnetic track than to the second magnetic track. The second sensor is positioned between the first sensor and the second magnetic track. The distance between the first sensor and the second magnetic track is larger than the distance between the second sensor and the second magnetic track. The magnetic flux density generated by the first and second magnetic tracks follow a ratio of two or more.
A magnetic flux concentrator (MFC) structure comprises a substrate, a first metal layer disposed on or over the substrate, and a second metal layer disposed on or over the first metal layer. Each metal layer comprises (i) a first wire layer comprising first wires conducting electrical signals, and (ii) a first dielectric layer disposed on the first wire layer. A magnetic flux concentrator is disposed at least partially in the first metal layer, in the second metal layer, or in both the first and the second metal layers. The structure can comprise an electronic circuit or a magnetic sensor with sensing plates. The structure can comprise a transformer or an electromagnet with suitable control circuits. The magnetic flux concentrator can comprise a metal stress-reduction layer in the first or second wire layers and a core formed by electroplating the stress-reduction layer.
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
H01L 23/522 - Arrangements for conducting electric current within the device in operation from one component to another including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
H01L 23/528 - Layout of the interconnection structure
H01L 23/58 - Structural electrical arrangements for semiconductor devices not otherwise provided for
A position sensor system includes a magnetic source and a sensor device movable relative to the magnetic source. The magnetic source has a first track of alternating magnetic poles, and a second track of an equal number of alternating poles, but 180° phase shifted relative to the first track. The sensor device is configured for measuring a plurality of magnetic field components, including a first magnetic field component at a first sensor location facing the first track, and a second magnetic field component oriented parallel to the first magnetic field component at a second sensor location facing the second track, and for deriving a first and a second difference signal from the plurality of magnetic field components, and for determining a position based on these difference signals.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
A position sensor system includes a magnetic source for generating a magnetic field, and a position sensor device movable relative to the magnetic source, or vice versa. The position sensor device comprises at least three magnetic sensor elements for measuring at least three magnetic field values of the magnetic field, and a processing circuit configured for determining at least two magnetic field gradients or magnetic field differences based on the at least three magnetic field values, and for deriving from the at least two magnetic field gradients or differences a first value indicative of a position of the position sensor device, and for deriving from the at least two magnetic field gradients or differences a second value indicative of integrity of the position sensor system.
G01R 33/038 - Measuring direction or magnitude of magnetic fields or magnetic flux using permanent magnets, e.g. balances, torsion devices
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
A rotation angle detector includes a magnet arranged to rotate, and a magnetic detection circuit provided with a first pair of magnetic detection elements arranged to be in combination sensitive to a first magnetic field in circumferential direction to the first surface and to a second magnetic field in normal direction to the first surface and arranged away from the rotation axis, and configured to detect magnetic flux of the magnet. A second pair of magnetic detection elements are arranged to be in combination sensitive to the first magnetic field in circumferential direction to the first surface and to the second magnetic field in normal direction to the first surface. A signal processing unit is configured to output a signal representative of a rotation angle of the magnet based on outputs of the first and second pair of magnetic detection elements.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
A sensor device comprising: a lead frame; a first/second semiconductor die having a first/second sensor structure at a first/second sensor location, and a plurality of first/second bond pads electrically connected to the lead frame; the semiconductor dies having a square or rectangular shape with a geometric center; the sensor locations are offset from the geometrical centers; the second die is stacked on top of the first die, and is rotated by a non-zero angle and optionally also offset or shifted with respect to the first die, such that a perpendicular projection of the first and second sensor location coincide.
H01L 25/065 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
A position sensor system is arranged for determining a position of a sensor device movable along a predefined path relative to a magnetic source. The system includes the magnetic source and the sensor device. The magnetic source has a first plurality of magnetic pole pairs arranged along a first track and a second plurality of magnetic pole pairs arranged along a second track, centrelines of the tracks are spaced apart by a predefined track distance. The sensor device is configured for measuring at least two orthogonal magnetic field components at a first sensor location, and at least two second orthogonal magnetic field components at a second sensor location. The first and second sensor location are spaced apart by a predefined sensor distance smaller than the predefined track distance, in a direction transverse to the tracks.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
A position sensor device includes: a first, second and third magnetic sensor for measuring a first magnetic field component oriented in the first direction, and a second magnetic field component oriented in a second direction perpendicular to the first direction; a processing circuit for determining a first and a second difference of signals provided by the first and third sensor, and for determining and outputting a first angle based on these differences; and for determining a third and a fourth difference of signals provided by the second sensor and one of the first and the third sensor; and for determining a second angle based on the third and the fourth difference, and for outputting the second angle and/or a diagnostic signal based on a comparison of the first and second angle.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
73.
Magnetic position sensor device, method and system, with error detection
A position sensor device comprising two or more magnetic sensors capable of measuring one or two or three orthogonal magnetic field components at various sensor locations; and a processing circuit for determining a first, a second and a third difference of two respective components, and for determining a first ratio of the first and second difference, and determining and outputting a first angle based on this first ratio; and for determining a second ratio of the first and third difference, for optionally determining a second angle, optionally comparing the two angles or the two ratios; and for outputting at least one of: the second angle, the two ratios, a diagnostic signal based on a comparison of the angles or ratios.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
A sensing system is provided for contactless sensing of current. The system includes a conductor for generating a magnetic field as electric current flows through the conductor, the conductor having a predetermined width and comprising a hole with a predetermined hole width passing through the whole thickness of the conductor, and a magnetic sensor for measuring at least one component of the magnetic field generated by the conductor. The magnetic sensor overlaps the hole. The current sensing is done based on the measured magnetic field. The sensor is positioned at a predetermined distance over a top surface of the conductor. The width of the hole is at least 0.15 times the width of the conductor.
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
75.
Current supervisory device with reliable event reporting
A current supervisory device includes current sensing means for sensing a current; a circuit arranged to convert a signal received from the current sensing means into a signal indicative of the sensed current; a processing circuit arranged to receive the signal indicative of the sensed current, to detect an event based on the received signal such that the detecting yields an outcome corresponding to one of at least two different states, and to generate an event signal in accordance with the outcome, such that the processing circuit has modulation means for performing modulation based on the event signal; and an output terminal arranged to output a reporting signal received from said processing circuit, whereby at least one of at least two different states gives rise to the reporting signal being a modulated signal.
The present invention relates to a current sensor device comprising: current sensing means for sensing a current, a circuit arranged to convert a signal received from the current sensing means into a signal indicative of the sensed current, storage means for storing a plurality of values of the signal indicative of the sensed current, a processing circuit arranged for receiving a subset of the plurality of values stored in the storage means, for detecting or predicting an event based on a function of the subset, said function being stored in the storage means, and for generating a corresponding event signal, said current supervisory device further comprising an interface circuit arranged to output the corresponding event signal.
A current sensor device for measuring a current in a conductor comprising: current sensing means comprising a magnetic sensing element for contactlessly measuring the current; amplification means arranged to act in a first and second state, said amplification means in said first and second state being arranged for amplifying a first and second signal, respectively, from said current sensing means with an adjustable first gain and a second gain and a first and second bandwidth to yield a first and second amplified signal, respectively, wherein said first gain is higher than the second gain, wherein the first gain and the second gain are larger than 1; processing means for controlling at least said first gain, for detecting an event based on at least said second amplified signal and for producing a signal indicative of said event; an output terminal arranged for outputting a signal indicative of said current based on said first amplified signal; and an output terminal arranged for outputting said signal indicative of the event.
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
G01R 31/3832 - Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration without measurement of battery voltage
78.
Magnetic position sensor system, method and device with error detection
Method of determining a position of a sensor device relative to a magnetic source, includes: a) determining a first and a second magnetic field component at a first sensor location; b) determining a third and a fourth magnetic field component at a second sensor location; c) determining a first difference of the first and third component, and determining a second difference of the second and fourth component, and determining a first angle based on a ratio of the first and second difference; d) determining a first sum of the first and third component, and determining a second sum of the second and fourth component; e) determining a second angle based on a ratio of said first and second sum; f) comparing the first and second angle to detect error.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/24 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01P 3/44 - Devices characterised by the use of electric or magnetic means for measuring angular speed
A sensor assembly includes a magnetic source for generating a magnetic field; a lever or stick, which can be manually tilted about a reference orientation; a magnetic sensor device for measuring the magnetic field. The magnetic source forms a central opening. The stick includes a ferromagnetic object mounted such that a potential energy of the magnetic field is minimal when the stick is oriented in the reference orientation.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
A method of manufacture of a sensor and a sensor for sensing a magnetic field generated by a current in a conductive substrate includes a first substrate having a sensing element for sensing magnetic field, and a second substrate is the conductive substrate. A conformal layer is provided by atomic layer deposition between the first substrate and the second substrate, thus protecting at least the sensing element from discharge from the second substrate.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
An integrated sensor and method for manufacturing the sensor includes a first component having a first material with a predetermined first value of coefficient of thermal expansion (CTE), and a second component over the first component. The second component includes a second material with a predetermined second value of CTE different from the first value. An interlayer is provided by molecular layer deposition, for minimizing stress caused by coefficient of thermal expansion mismatch between the first and second components. The interlayer includes an organic-inorganic hybrid polymer compound.
A sensing system and a method for sensing position include a first magnetic track comprising a first number of multipoles for generating a magnetic field solidarily fixed to a second magnetic track for generating a magnetic field and a second sensor for sensing magnetic field, forming a magnetic structure. At least two sensors are included. The first sensor is positioned proximal to the first magnetic track, closer to the first magnetic track than to the second magnetic track. The second sensor is positioned proximal to the second magnetic track. The distance between the first sensor and the second magnetic track is larger than the distance between the second sensor and the second magnetic track. The magnetic flux density generated by the first and second magnetic tracks follow a ratio of two or more.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
A hybrid position sensor for determining the position of a hybrid target includes a main transducer for obtaining a first signal indicative for a position of the hybrid target within a first range and with a first resolution using a first or second technology; a support transducer for obtaining a second signal indicative for the position of the hybrid target within a second range and with a second resolution using the second technology if the main transducer is using the first technology and vice versa, wherein the first range is smaller than the second and the first resolution is higher than the second, and wherein the first technology is magnet based and the second technology is an inductive technology; a combiner for combining the obtained first signal and second signal to determine the position of the hybrid target.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01B 7/00 - Measuring arrangements characterised by the use of electric or magnetic techniques
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/16 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
84.
Devices and methods for measuring a magnetic field gradient
A method of determining a gradient of a magnetic field, includes the steps of: biasing a first/second magnetic sensor with a first/second biasing signal; measuring and amplifying a first/second magnetic sensor signal; measuring a temperature and/or a stress difference; adjusting at least one of: the second biasing signal, the second amplifier gain, the amplified and digitized second sensor value using a predefined function f(T) or f(T, ΔΣ) or f(ΔΣ) of the measured temperature and/or the measured differential stress before determining a difference between the first/second signal/value derived from the first/second sensor signal. A magnetic sensor device is configured for performing this method, as well as a current sensor device, and a position sensor device.
A sensor including at least one sensor element configured for measuring an external parameter and outputting one or more results representative for the external parameter, an output buffer configured for receiving the one or more results or a processed version thereof and for applying an analog signal representative for the result or a time multiplexed sequence of analog signals representative for the results on a sensor terminal, and a control circuit configured for obtaining an ID of the sensor, and for receiving a trigger signal, and for determining whether the trigger signal matches the ID of the sensor, and for enabling the output buffer during a predefined period when the trigger signal matches the ID of the sensor.
G01D 1/14 - Measuring arrangements giving results other than momentary value of variable, of general application giving a distribution function of a value, i.e. number of times the value comes within specified ranges of amplitude
G01D 1/08 - Measuring arrangements giving results other than momentary value of variable, of general application giving integrated values by intermittent summation over fixed periods of time
86.
SENSOR DEVICE AND SYSTEM WITH NON-LINEARITY COMPENSATION
A sensor circuit for measuring a physical quantity including: a signal acquisition circuit having a sensor to provide an input signal related to the physical quantity; a processing circuit to receive the input signal and for providing an output signal representative of the physical quantity; the processing circuit comprising a closed loop comprising: a first sub-circuit arranged for receiving the input signal and a feedback signal, and configured for providing a first signal; a frequency dependent filter for receiving and filtering the first signal, and for providing the output signal; a second sub-circuit for receiving and converting the filtered signal into the feedback signal using a non-linear function.
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
G01D 3/02 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for altering or correcting the transfer function
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
87.
Circuit and method for determining angular position
A sensor circuit for determining an angular position of a rotating object configured for generating or modulating a magnetic field includes: a first sensor for providing a first sensor signal; a second sensor for providing a second sensor signal a signal correction block for receiving the first/second sensor signal or a signal derived therefrom as a first/second input signal, and for receiving a plurality of feedback signals; and configured for providing a first corrected signal and a second corrected signal; an angle calculation block configured for receiving the first and the second corrected signal, and for determining the angular position signal as a function of a ratio of the first and the second corrected signal; a feedback block configured for receiving the angular position signal, and for generating the plurality of feedback signals based on the angular position signal, with an improved linearity.
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
G01R 33/06 - Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
A position sensor device for determining a two-dimensional position of a magnet which is movable in a plane, and that generates a magnetic field; the position sensor device includes: a semiconductor substrate having a plurality of magnetic sensors configured for determining three orthogonal magnetic field components (Bx, By, Bz) at a single location. The semiconductor substrate further includes a processing circuit configured for determining the two-dimensional position (R,θ; X,Y) based on the three orthogonal magnetic field components. A thumbstick assembly has such a position device. A method is provided for determining the two-dimensional position.
z,2 along the z-direction; and (iii) an axially-magnetized ring magnet arranged under the first and second sensing region such that an axial direction of the ring magnet is substantially parallel to the z-direction and—in operation—a position of the ring magnet with respect to the first and second sensing regions is fixed.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
90.
Device and method for determining an angular position of inductive position sensor
A method of determining an angular position of a target of an inductive angular position sensor system, relative to a substrate, includes the steps of: receiving, demodulating and digitizing signals, and reducing a DC-offset of the digital signals, and determining an angular position. The step of reducing the DC-offset involves: i) initializing a DC-correction value; ii) subtracting the DC-correction value to obtain DC-shifted signals; iii) clipping the DC-shifted-signals to obtain clipped signals; iv) calculating a first sum by summing values of the clipped signal over one period, and v) calculating a second sum by summing absolute values of the clipped signal over said period; vi) adding to each DC correction value K times the first sum divided by the second sum, where K is a predefined constant.
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
A sensor device includes a silicon substrate having an active surface; a first sensing area disposed near a first edge of the active surface of the silicon substrate such that the first sensing area has at least one first magnetic sensing element is made of a first compound semiconductor material and contact pads; and a second sensing area disposed near a second edge of the active surface of the silicon substrate, such that the second edge is substantially opposite to the first edge, such that the second sensing area has at least one second magnetic sensing element made of a second compound semiconductor material and contact pads. A processing circuit is disposed of in the silicon substrate and is electrically connected via wire bonds and/or a redistribution layer with the contact pads of the first and second sensing areas.
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
Magnetic sensor system comprising: an integrated circuit comprising a semiconductor substrate, the semiconductor substrate comprises a plurality of magnetic sensors configured for measuring at least two first magnetic field components (Bx1, Bx2) oriented in a first direction (X), and for measuring at least two second magnetic field components (Bz1, Bz2) oriented in a second direction (Y; Z); a permanent magnet movable relative to the integrated circuit and configured for generating a magnetic field; a processing circuit configured for determining at least two physical quantities (Fx, Fy, Fz) related to a position of the magnet, using a predefined algorithm based on the measured first and second magnetic field components (Bx1, Bx2; Bz1, Bz2) or values derived therefrom, as inputs, and that uses a plurality of at least eight constants which are determined using machine learning. A force sensor system. A joystick or thumbstick system. A method.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 3/036 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
The present invention relates to a current-sensor structure comprising a conductor for conducting electrical current in a current direction. The conductor has one or more conductor surfaces. At least one current sensor is disposed on, over, adjacent to or in contact with the conductor and is offset from a centre of the conductor in an offset direction orthogonal to the current direction and optionally parallel to a conductor surface. The current-sensor structure can comprise a substrate on which the conductor is disposed. The current sensor can be located on a side of the conductor opposite or orthogonal to a surface of the substrate. The current sensor can be aligned with, near to or adjacent to an edge of the conductor. The current-sensor structure can comprise a shield, such as a U-shaped laminated shield that at least partially surrounds the conductor and the current sensor.
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
A magnetic sensor system includes an integrated circuit comprising a semiconductor substrate. The semiconductor substrate has a plurality of magnetic sensors configured for measuring at least two first magnetic field components oriented in a first direction, and for measuring at least two second magnetic field components oriented in a second direction; a permanent magnet movable relative to the integrated circuit and configured for generating a magnetic field. A processing circuit is configured for determining at least two physical quantities related to a position of the magnet, using a predefined algorithm based on the measured first and second magnetic field components or values derived therefrom, as inputs, and that uses a plurality of at least eight constants which are determined using machine learning. A force sensor system, a joystick or thumbstick system, and a method may use the magnetic sensor system.
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
G06F 3/0338 - Pointing devices displaced or positioned by the userAccessories therefor with detection of limited linear or angular displacement of an operating part of the device from a neutral position, e.g. isotonic or isometric joysticks
A circuit for sensing a current comprises a substrate having a first and a second major surface, the second major surface being opposite to the first major surface. At least one magnetic field sensing element is arranged on the first major surface of the substrate and is suitable for sensing a magnetic field caused by a current flow in a current conductor coupled to the second major surface. The substrate also comprises at least one insulation layer, substantially buried between the first major surface and the second major surface of the substrate.
A weight sensor comprises a sensing system including a target piece and a sensing element, configured to provide changes of a magnetic field, being generated by motion of the target piece. The sensing element senses these changes and provides a signal representative of the position of the target piece. An integrated circuit with processing means can process signals from the sensing element. The flexible piece receives a force stimulus, so that upon exerting a force on the flexible piece by a product due to the weight of said product, the displacement of the target piece with respect to sensing elements can be sensed.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
G01L 5/164 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in inductance
G01L 5/169 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using magnetic means
G01L 5/22 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
G01G 7/00 - Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in groups
A force sensor comprises a sensing system including a target piece and a sensing element, configured to provide changes of a magnetic field, being generated by motion of the target piece. The sensing element senses these changes and provides a signal representative of the position of the target piece. An integrated circuit with processing means can process signals from the sensing element. A semiconductor package includes at least the integrated circuit. A flexible piece comprises the target, and it is attached to the semiconductor package, where the attachment area between the flexible piece and the semiconductor package does not extend beyond the top projection, or outline, of the semiconductor package. The flexible piece receives a force stimulus, so that upon exerting a force on the flexible piece, the displacement of the target piece with respect to the surface of the semiconductor package can be sensed by the sensing element.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
G01L 5/164 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in inductance
G01L 5/169 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using magnetic means
G01L 5/22 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
G01G 7/00 - Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in groups
G01G 19/52 - Weighing apparatus combined with other objects, e.g. with furniture
A weight sensor comprises a sensing system including a target piece and a sensing element, configured to provide changes of a magnetic field, being generated by motion of the target piece. The sensing element senses these changes and provides a signal representative of the position of the target piece. An integrated circuit with processing means can process signals from the sensing element. The flexible piece receives a force stimulus, so that upon exerting a force on the flexible piece by a product due to the weight of said product, the displacement of the target piece with respect to sensing elements can be sensed.
G01G 7/02 - Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in groups by electromagnetic action
A47J 42/44 - Automatic starting or stopping devicesWarning devices
G01L 1/04 - Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
A force sensor has a sensing system including a target piece and a sensing element, configured to provide changes of a magnetic field, being generated by motion of the target piece. The sensing element senses these changes and provides a signal representative of the position of the target piece. An integrated circuit with processing means can process signals from the sensing element. A semiconductor package includes at least the integrated circuit. A flexible piece includes the target, and it is attached to the semiconductor package. The attachment area between the flexible piece and the semiconductor package does not extend beyond the top projection, or outline, of the semiconductor package. The flexible piece receives a force stimulus, so that upon exerting a force on the flexible piece, the displacement of the target piece with respect to the surface of the semiconductor package can be sensed by the sensing element.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
G01G 7/02 - Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in groups by electromagnetic action
G01L 1/04 - Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
A method of magnetic sensing uses at least two magnetic sensing elements including a first and a second magnetic sensor element. The method includes: a) measuring in a first configuration a combination of the first and second signal obtained from both sensors; b) measuring in a second configuration an individual signal obtained from the first sensor only; c) testing a consistency of the combined signal and the individual signal, or testing a consistency of signals derived therefrom, in order to detect an error. A sensor device is configured for performing this method. A sensor system includes the sensor device and optionally a second processor connected thereto.
patents
