09 - Scientific and electric apparatus and instruments
Goods & Services
Electric measuring, signaling, and control apparatus and
instruments, in particular measuring and regulating
apparatus, sensors, transmitters, indicators, thermostats,
pressure switches, density monitors.
2.
LOAD MEASURING ARRANGEMENT AND LOAD MEASURING METHOD AND USE OF A LOAD MEASURING APPARATUS WITH AVERAGING OF LOCAL INHOMOGENEITIES
For more accurate measurement without influences of local inhomogeneities, the invention provides a load measuring arrangement (10) having a measurement object (14) and a load measuring apparatus (18), which comprises a magnetic field generating device (22) for exciting a magnetic field at a measurement region (26) of the measurement object (14) and a magnetic field sensing device (22) for sensing a magnetic field parameter, which changes under the action of a load, at the measurement region (26) of the measurement object (14). In some embodiments, the magnetic field generating device encompasses at least 50% of the measurement object (14) at the measurement region (26) in a circumferential direction and is designed such that the preferred direction of the excited magnetic field substantially corresponds to the axis of rotation (12) of the measurement object (14), and the magnetic field sensing device (22) is sensitive to a magnetic field component which is normal to the preferred direction of the excited magnetic field. In one alternative, the magnetic field generating device (22) is designed in such a way that the excited magnetic field varies as viewed over the circumference. In another alternative, the measurement object (14) comprises at least one axially extending structuring (40) in the measurement region (26). In further embodiments, the arrangement of magnetic field generating device (20) and magnetic field sensing device (22) is interchanged. In even further embodiments, a periodic arrangement of magnetic field generating elements or regions 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
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
3.
METHOD, DEVICE, USE AND INSTALLATION FOR GAS DENSITY MONITORING
In order to mechanically monitor a gas density of a greenhouse gas in a more climate-friendly and cost-effective manner, the invention provides a density monitoring method for monitoring the gas density of a noxious gas (10), comprising: a) providing a closed reference volume (26) with a partition wall (28) movably disposed between the reference volume (26) and the noxious gas (10) to be monitored, b) providing a reference gas (56) which has a lower global warming potential relative to the noxious gas (10) by at least a factor of two in the reference volume (26) at a reference gas pressure which is higher than the filling pressure of the noxious gas (10), c) compensating, by means of a spring device (32), for a force acting on the separation wall (28) due to the increased reference gas pressure in the reference volume (26), and d) detecting a deflection of the partition wall (28) for monitoring the gas density. A gas density monitor (14), its use in such a method and an electrical system provided therewith are also proposed.
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
4.
MEASURING SENSOR FOR AN END-FACE MAGNETOSTRICTIVE MEASUREMENT OF LOADS, LOAD MEASURING DEVICE PROVIDED THEREWITH, MEASURING ASSEMBLY, LOAD MEASURING METHOD, AND PRODUCTION METHOD
The invention relates to magnetostrictive or magnetoelastic measurements of loads on a test object (12). In order to allow the implementation of a particularly compact measuring assembly (14) which is nevertheless inexpensive to produce, the invention proposes a measuring sensor (16) for a load measuring device (14) for measuring a load on a test object (12), wherein the measuring sensor (16) has a plurality of planar coils (36.1-36.4) in order to detect a magnetic field parameter on the test object (12), said magnetic field parameter changing due to the load, and the planar coils (36.1-36.4) are arranged about the center in an at least partly annular manner and have a respective coil conductor (38.1-38.4) which runs substantially on a radial plane, said coil conductor having diagonal sections (40.1-40.4) and connecting sections (42.1-42.4). Each of the diagonal sections (40.1-40.4) extends in an inclination direction diagonally to a radial direction, and each of the connecting sections (42.1-42.4) connects diagonal sections (40.1-40.4) together and extends substantially in a radial direction or substantially in a circumferential direction. The planar coils (36.1-36.4) are wired such that currents flowing through the connecting sections (42.1-42.4) of the planar coils in the circumferential direction or in the radial direction are subtracted.
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 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01N 27/82 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
5.
METHOD AND DEVICE FOR MEASURING A GAS CONCENTRATION IN A REACTION CHAMBER
zzz) of the gas component (Z) to be measured from the values measured in step b) and from the molar mass of the gas components (X, Y, Z) of the gas mixture.
A sensor head includes a magnetic field generating unit for generating a magnetic field in the test object and a magnetic field measuring unit for measuring a magnetic field change in the test object. The magnetic field generating unit includes at least one excitation coil having a plurality of excitation coil windings arranged around an excitation coil axis, and the magnetic field measuring unit includes a measuring coil arrangement having a plurality of measuring coils. The radially outermost excitation coil winding is arranged radially outside the measuring coil arrangement, as viewed with respect to the excitation coil axis, so that the measuring coil arrangement is surrounded by at least the radially outermost excitation coil winding, as viewed in axial plan view of the sensor head.
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
7.
METHOD, APPARATUS, USE AND SYSTEM FOR GAS DENSITY MONITORING
In order to monitor a greenhouse gas density mechanically in a more climate-friendly and cost-effective way, the invention provides a density monitoring method for monitoring the gas density of a harmful gas (10), comprising: a) providing a closed reference volume (26) with a partition (28) which is arranged movably between the reference volume (26) and the harmful gas (10) to be monitored, b) providing a reference gas (56) which has a greenhouse gas potential which is lower by at least the factor of two relative to the harmful gas (10), by the reference volume (26) having a reference gas pressure which is increased in relation to the filling pressure of the harmful gas (10), c) using a spring device (32) to compensate for a force acting on the partition (28) because of the increased reference gas pressure in the reference volume (26), and d) detecting a deflection of the partition (28) in order to monitor the gas density. In addition, a gas density monitor (14), the use thereof in such a method and an electrical system provided therewith are proposed.
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
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
For improving the signal quality while simultaneously improving the function of test objects, a load measuring arrangement includes a test object and a load measuring device for measuring a load applied between a first and a second region of the test object. The test object has a transmission region receiving a major part of the load between the first and the second region. A secondary transmission element is connected to the first and second regions of the test object so as to receive a smaller portion of the load between the first and second regions in parallel with the transmission region. The load measuring device includes a magnetic field generating device for generating a magnetic field at the secondary transmission element, and a magnetic field detection device for detecting a magnetic field parameter changing due to the load at the secondary transmission element.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
G01L 1/12 - Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
10.
Torque transmitter and torque sensor, manufacturing method thereof, and method of measuring torque using the same
A torque transmitter for a torque sensor for measuring a torque on a shaft includes a carrier plate that includes a plurality of sensor element carrier plate regions, on each of which at least one sensor element for recording magnetic field changes is arranged, and an enclosure region formed in a substantially annular shape to enclose the shaft around a circumference of the shaft. The plurality of sensor element carrier plate regions are perpendicularly connected to the enclosure region and arranged radially within the enclosure region by being spaced apart along a circumferential direction around the circumference of the shaft.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
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
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01P 3/44 - Devices characterised by the use of electric or magnetic means for measuring angular speed
11.
Device and arrangement for measuring load on a test object, in particular a chassis component
The invention relates to a load measurement device (12) for accurately measuring a load in a test object (14) such as, in particular, a chassis component, comprising a magnetic field generating device (18), a first magnetic field detecting device (20), a second magnetic field detecting device (22), and a measurement environment parameter acquisition device (80) for acquiring at least one measurement environment parameter in the test object (14), wherein an evaluation device (42) is configured to generate a measurement signal obtained on the basis of outputs of the first and second magnetic field detection devices (20, 22) in dependence on the at least one measurement environment parameter detected by the measurement environment parameter acquisition device (80).
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 1/26 - 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
The invention relates to an arrangement (100) for measuring a mechanical load on a test object, with the detection of changes in the magnetic field, said arrangement comprising a test object (14), which extends in a longitudinal direction L, and at least one sensor element (18) comprising a magnetic field generation device (20) for generating a magnetic field in the test object (14) and a magnetic field detection device (22) for measuring a change in the magnetic field in the test object (14). The sensor element (18) is arranged on a measurement surface (15) of the test object (14), at least one directional component of said measurement surface extending radially and/or transversely to the longitudinal direction L of the test object (14). A magnetic field is generated in the test object (14) and a change in the magnetic field in the test object (14) is measured on the measurement surface (15). The load measured is, in particular, 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
13.
MEASURING METHOD, MEASURING DEVICE, CONTROL UNIT AND COMPUTER PROGRAM PRODUCT
In order to allow quicker and more convenient measurement to be carried out more accurately even over a longer time period and under different conditions, the invention provides a measuring method for measuring a measurement parameter by means of a sensor (14), the method comprising: a) sensing safe states and filling a look-up table (LuT) with correction values (D) dependent on influencing parameters and b) carrying out corrected measurement of the measurement parameter, wherein the correction values for the present value of the influencing parameter are queried.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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
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 9/02 - 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 by making use of variations in ohmic resistance, e.g. of potentiometers
G01L 9/04 - 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 by making use of variations in ohmic resistance, e.g. of potentiometers of resistance strain gauges
G01L 9/06 - 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 by making use of variations in ohmic resistance, e.g. of potentiometers of piezo-resistive devices
G01L 9/08 - 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 by making use of piezoelectric devices
G01L 9/10 - 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 by making use of variations in inductance
G01L 9/12 - 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 by making use of variations in capacitance
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
B62M 6/50 - Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
14.
Method for producing a planar coil assembly and a sensor head provided with same
H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
15.
ROLL STABILIZER AND SENSOR UNIT FOR A ROLL STABILIZER
Disclosed is a roll stabilizer (1) for a motor vehicle, comprising a sensor unit (10), which operates according to the principle of inverse magnetostriction, for acquiring torque (M) acting between stabilizer portions (6a, 6b), characterized in that the sensor unit (10) includes a magnetic field generation device, which preferably comprises a transmitter coil (12) and is used for magnetizing a measurement element (4; 6a) affected by torsional stress during operation, and a plurality of magnetic field detection devices, each of which preferably comprises a receiver coil (13) and which are used for acquiring parameters of the magnetic field of the measurement element (4; 6a). Also disclosed is a corresponding sensor unit (10) for a roll stabilizer (1) of the aforementioned type.
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
16.
Method, device and arrangement for load measurement on a test object
To reduce a hysteresis error, the invention provides a load measurement method (12) for measuring a load in a test object (14), comprising: a) generating a magnetic field in the test object (14) by means of at least one magnetic field generating coil (Lg) to which a periodically alternating current is applied; b) detecting a magnetic field parameter which changes on the basis of a load in the test object (14), using at least one magnetic field detecting device, in order to generate a magnetic field parameter signal (51) which changes periodically according to the periodically generated magnetic field, characterized by: c) detecting the hysteresis-to-signal ratio of the magnetic field parameter signal (51) over time within one period; and d) disregarding magnetic field parameter signal values from at least one predetermined timespan within each period in which a maximum hysteresis-to-signal ratio occurs.
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
17.
Load measuring arrangement, method for producing said arrangement and load measuring method which can be carried out with said arrangement
In order to be able to carry out an accurate and simple contactless load measurement on test objects made from materials which are optimized with respect to the intended purpose thereof, the test object (14) and a load measuring apparatus for measuring a load on the test object, wherein the load measuring apparatus (12) has a magnetic field generating device (18) for generating a magnetic field in a measuring region (11) of the test object (14) and a first and a second magnetic field capturing device (20, 22) for capturing a magnetic field parameter which changes on account of the load, characterized in that the measuring region (11) has a layer (13) made of a ferromagnetic amorphous or nanocrystalline metal alloy with maximum particle sizes of less than 1 μm.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 9/16 - 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 by making use of variations in the magnetic properties of material resulting from the application of stress
18.
Density monitor with integrated low pressure indicator
The invention relates to a density monitor (10) for monitoring a gas density in a gas chamber (20). The density monitor (10) comprises a measuring apparatus (12) having a first measuring device (24) and a second measuring device (28), the two measuring devices (24; 28) being coupled together. The first measuring device (24) is designed to measure a first pressure range (62) in relative terms with respect to an atmosphere, and the second measuring device (28) is configured to measure a second pressure range (64) in absolute terms. The density monitor (10) further comprises an indicator device (50), which is designed to indicate the two pressure ranges (24; 28). The density monitor (10) also comprises a movable drive element (48), which is designed to drive the indicator device (50), wherein at least one of the two measuring devices (24; 28) is designed to move the drive element (48) in order to drive the indicator device (50), wherein the indicator device (50) comprises an indicator element (58) which is designed to indicate the two pressure ranges (62, 64).
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
G01L 19/08 - Means for indicating or recording, e.g. for remote indication
19.
Moisture sensor element, method for producing a moisture sensor element, moisture or dew point sensor and moisture-measuring method
In order to permit a robust, energy-efficient and precise moisture sensor, the invention relates to a moisture sensor element (10) for a moisture sensor (12) for measuring a moisture content in a gas, comprising at least one vibrating element (14) and at least one material (16, 18) on the vibrating element (14), wherein the at least one material (16, 18) is designed in such a way that the mass thereof changes rapidly with moisture changing over a moisture value. The invention also relates to a moisture-measuring method for measuring a moisture in a gas, comprising: using a moisture sensor element (10), wherein the course of the measurement signal thereof has at least one non-linearity according to the moisture; and determining a reference value based on the at least one non-linearity.
G01N 5/00 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
G01N 5/02 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
The invention relates to a load measuring device (12) for more accurately measuring a load in a test object (14) such as, in particular, a chassis component, having a magnetic field generating device (18), having a first magnetic field detecting device (20), having a second magnetic field detecting device (22), and having a measurement environment parameter detecting device (80) for detecting at least one measurement environment parameter at the test object (14), wherein an evaluation device (42) is designed to generate a measurement signal, obtained on the basis of outputs from the first and second magnetic field detecting device (20, 22), as a function of the at least one measurement environment parameter detected by the measurement environment parameter detecting device (80).
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 1/26 - 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 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
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
G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
21.
ARRANGEMENT AND METHOD FOR MEASURING A MECHANICAL LOAD ON A TEST OBJECT, WITH THE DETECTION OF CHANGES IN THE MAGNETIC FIELD
The invention relates to an arrangement (100) for measuring a mechanical load on a test object, with the detection of changes in the magnetic field, said arrangement comprising a test object (14), which extends in a longitudinal direction L, and at least one sensor element (18) comprising a magnetic field generation device (20) for generating a magnetic field in the test object (14) and a magnetic field detection device (22) for measuring a change in the magnetic field in the test object (14). The sensor element (18) is arranged on a measurement surface (15) of the test object (14), at least one directional component of said measurement surface extending radially and/or transversely to the longitudinal direction L of the test object (14). A magnetic field is generated in the test object (14) and a change in the magnetic field in the test object (14) is measured on the measurement surface (15). The load measured is, in particular, 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
22.
Torque transmitter and torque sensor, manufacturing method and measuring method
In order to inexpensively measure torque on a shaft such that the measurement is as independent as possible from distance changes or material inconsistencies of the shaft around the circumference thereof, the invention provides a torque transmitter for a torque sensor for measuring a torque on a shaft, having a carrier plate that has a plurality of sensor element carrier plate regions, on each of which at least one sensor element for recording magnetic field changes, caused by the magnetoelastic effect, is arranged, and at least one enclosure region that is designed to at least partly enclose the shaft around the circumference of the shaft, wherein at least one flexible connection region is provided by way of which at least one of the sensor element carrier plate regions is able to be pivoted relative to another sensor element carrier plate region or relative to the at least one enclosure region.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
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
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
23.
Load measuring method, load measuring device and load measuring arrangement
To improve the output signal quality of a load measurement by means of active magnetization, the invention provides a load measurement method for measuring a mechanical load on a test object (14), comprising:
a) generating and applying a magnetic field to the test object (14);
b) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a first magnetic field detection device (20) to generate a first measurement signal (U1, UAB),
c) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a second magnetic field detection device (22) to generate a second measurement signal (U1, UAB),
d) computationally determining a third measurement signal (UBT) from the first measurement signal (U1, UAB) and the second measurement signal (U2, UAT), and preferably comprising the steps of
e) forming a difference from one (U2, UAT) of the first and the second measurement signals and the computationally determined third measurement signal (UBT) to produce an output signal,
f) determining the mechanical load applied to the test object (14) based on the output signal.
The invention also provides a corresponding load measurement device for carrying out the load measurement method.
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
G01L 9/16 - 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 by making use of variations in the magnetic properties of material resulting from the application of stress
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 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
To provide a robust microactuator that can be mass produced economically, the invention creates a microactuator (10), comprising a first actuator element (12) having a magnetic field generating unit (16) and a second actuator element (14) which can be moved relative to the magnetic field generating unit (16) due to the action of a magnetic field generated by the magnetic field generating unit (16), wherein the magnetic field generating unit (16) has at least one planar coil (20) formed on a conductor layer (32) of a circuit board element (26, 28).
H02K 3/26 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
H02K 33/16 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
Disclosed is a roll stabilizer (1) for a motor vehicle, comprising a sensor unit (10), which operates according to the principle of inverse magnetostriction, for acquiring torque (M) acting between stabilizer portions (6a, 6b), characterized in that the sensor unit (10) includes a magnetic field generation device, which preferably comprises a transmitter coil (12) and is used for magnetizing a measurement element (4; 6a) affected by torsional stress during operation, and a plurality of magnetic field detection devices, each of which preferably comprises a receiver coil (13) and which are used for acquiring parameters of the magnetic field of the measurement element (4; 6a). Also disclosed is a corresponding sensor unit (10) for a roll stabilizer (1) of the aforementioned type.
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
The aim of the invention is to improve independence with respect to external influences. According to the invention, this is achieved by a load-measuring device (10) for measuring a load on a test object, comprising: a sensor head (16), a magnetic field generating device (18) for generating a magnetic field in the test object, said magnetic field generating device (18) having at least one magnetic field generating coil (24, 30, 32) in the sensor head (16) and a current source (26) for supplying the magnetic field generating coil (24, 30, 32) with a periodically changing current, a first magnetic field detecting device (18) for detecting a first magnetic field parameter which changes on the basis of a load on the test object and for generating a first magnetic field parameter signal which changes periodically on the basis of the periodically generated measurement field, wherein the first magnetic field detecting device (18) has at least one first magnetic field detecting coil (30) in the sensor head (16), a second magnetic field detecting device (22) for detecting a second magnetic field parameter which changes on the basis of a load on the test object and for generating a second magnetic field parameter signal which changes periodically on the basis of the periodically generated measurement field, said second magnetic field detecting device (22) having at least one second magnetic field detecting coil (32) in the sensor head (16), and an analysis device (62) for generating a measurement signal from the first and second magnetic field parameter signal. The sensor head (16) is designed without a magnetic flux amplification for the coils arranged therein so as to be flux amplification-free, and the current source (26) is designed to supply the magnetic field generating coil (24, 30, 32) with a current which changes periodically with a frequency of more than 50 kHz.
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
27.
METHOD, DEVICE AND ARRANGEMENT FOR LOAD MEASUREMENT ON A TEST OBJECT
To reduce a hysteresis error, the invention provides a load measurement method (12) for measuring a load in a test object (14), comprising: a) generating a magnetic field in the test object (14) by means of at least one magnetic field generating coil (Lg) to which a periodically alternating current is applied; b) detecting a magnetic field parameter which changes on the basis of a load in the test object (14), using at least one magnetic field detecting device, in order to generate a magnetic field parameter signal (51) which changes periodically according to the periodically generated magnetic field, characterized by: c) detecting the hysteresis-to-signal ratio of the magnetic field parameter signal (51) over time within one period; and d) disregarding magnetic field parameter signal values from at least one predetermined timespan within each period in which a maximum hysteresis-to-signal ratio occurs.
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 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
28.
LOAD MEASURING ARRANGEMENT, METHOD FOR PRODUCING SAID ARRANGEMENT AND LOAD MEASURING METHOD WHICH CAN BE CARRIED OUT WITH SAID ARRANGEMENT
In order to be able to carry out an accurate and simple contactless load measurement on test objects made from materials which are optimized with respect to the intended purpose thereof, the invention provides a load measuring arrangement (16) comprising a test object (14) and a load measuring apparatus for measuring a load on the test object, wherein the load measuring apparatus (12) has a magnetic field generating device (18) for generating a magnetic field in a measuring region (11) of the test object (14) and a first and a second magnetic field capturing device (20, 22) for capturing a magnetic field parameter which changes on account of the load, characterized in that the measuring region (11) has a layer (13) made of a ferromagnetic amorphous or nanocrystalline metal alloy with maximum particle sizes of less than 1 μm.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 9/16 - 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 by making use of variations in the magnetic properties of material resulting from the application of stress
29.
Method for producing a pressure sensor measuring element and thus obtained pressure sensor measuring element
The aim of the invention is to economically produce a pressure measuring sensor element, and relates, according to one aspect, to a method for producing a pressure sensor measuring element for a pressure sensor which comprises at least one membrane and a covering protecting the membrane, the pressure sensor element being produced in a layer-by-layer generative production method. This makes it possible to, for example, easily construct a combination sensor for detecting pressure and an additional parameter. It is also possible to structures for reinforcement or for influencing resonant frequency or for influencing heat conduction.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01M 15/08 - Testing internal-combustion engines by monitoring pressure in cylinders
B33Y 80/00 - Products made by additive manufacturing
F02B 77/08 - Safety, indicating, or supervising devices
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
In order to reduce the RSN error, the invention relates to a load measuring device (12) for measuring a load at a test object (14) that can rotate about an axis of rotation, comprising a magnetic field generation unit (18) for generating a magnetic field at the test object (14), a magnetic field detection unit (20, 22) for detecting a magnetic field parameter at the test object that is changing under the influence of a load, a rotational angle detection unit (40) for detecting a rotational angle of the test object (14), and an evaluation unit which is designed to compensate for a rotational-angle-dependent influencing of the detection of the magnetic field parameter based on the rotational angle detected via the rotational angle detection unit (40).
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01M 1/28 - Determining imbalance by oscillating or rotating the body to be tested with special adaptations for determining imbalance of the body in situ, e.g. of vehicle wheels
G01L 5/13 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
31.
METHOD FOR PRODUCING A PLANAR COIL ASSEMBLY AND A SENSOR HEAD PROVIDED WITH SAME
H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
32.
DENSITY MONITOR WITH INTEGRATED LOW PRESSURE INDICATOR
The invention relates to a density monitor (10) for monitoring a gas density in a gas chamber (20). The density monitor (10) comprises a measuring apparatus (12) having a first measuring device (24) and a second measuring device (28), the two measuring devices (24; 28) being coupled together. The first measuring device (24) is designed to measure a first pressure range (62) in relative terms with respect to an atmosphere, and the second measuring device (28) is designed to measure a second pressure range (64) in absolute terms. The density monitor (10) further comprises an indicator device (50), which is designed to indicate the two pressure ranges (24; 28). The density monitor (10) also comprises a moveable drive element (48), which is designed to drive the indicator device (50), wherein at least one of the two measuring devices (24; 28) is designed to move the drive element (48) in order to drive the indicator device (50), wherein the indicator device (50) comprises an indicator element, which is designed to indicate the two pressure ranges (62, 64).
G01L 7/04 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
33.
SENSOR LAYER SYSTEM PRECURSOR, SENSOR LAYER SYSTEM WHICH CAN BE PRODUCED THEREFROM, HYDROGEN SENSOR ELEMENT WHICH USES SAID SENSOR LAYER SYSTEM, AND CORRESPONDING PRODUCTION METHOD
The invention relates to a sensor layer system precursor (48) for forming a sensor layer system (26). The sensor layer system (26) is designed to receive hydrogen and comprises a measurement layer precursor (42) that is made of a measurement layer precursor material consisting of: - 20 wt.% to 90 wt.% of palladium or a palladium alloy, wherein the palladium alloy consists of palladium and at least one palladium alloy partner which is selected from the group VIIIB, the material quantity fraction of the palladium is at least 85%, and the sum of the material quantity fractions of all of the palladium alloy partners contained in the palladium alloy equals maximally 15%, in each case based on the total material quantity of the palladium alloy; - 10 wt.% to 80 wt.% of sacrificial metal, said sacrificial metal being at least as electropositive as the palladium and each palladium alloy partner and/or said sacrificial metal being selectively convertible into a soluble and/or ionic form by means of a chemical process; - a group of unavoidable impurities; and - optionally up to and including 30 wt.% of a pore filler precursor metal which can be converted into a pore filler by a pore filler reaction component.
B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
To improve the reliability of gas space monitoring of a gas space (17) of an electrical system (40) filled with a harmful gas, the invention provides a multi-path valve device (44) for connecting a density monitor (20) to a system to be monitored for gas density, comprising a first gas connection (13) for connecting the valve device (44) to the system, a second gas connection (14) for connection to the density monitor (20), a third gas connection (15) for connection of a testing device (19) for testing the function of the density monitor (20), and switching device for selectively connecting the second gas connection (14) to the first gas connection (13) or the third gas connection (15).
F16K 11/22 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
F16K 11/044 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
G01N 1/20 - Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
35.
MOISTURE SENSOR ELEMENT, METHOD FOR PRODUCING A MOISTURE SENSOR ELEMENT, MOISTURE OR DEW POINT SENSOR AND MOISTURE-MEASURING METHOD
In order to permit a robust, energy-efficient and precise moisture sensor, the invention relates to a moisture sensor element (10) for a moisture sensor (12) for measuring a moisture content in a gas, comprising at least one vibrating element (14) and at least one material (16, 18) on the vibrating element (14), wherein the at least one material (16, 18) is designed in such a way that the mass thereof changes rapidly with moisture changing over a moisture value. The invention also relates to a moisture-measuring method for measuring a moisture in a gas, comprising: using a moisture sensor element (10), wherein the course of the measurement signal thereof has at least one non-linearity according to the moisture; and determining a reference value based on the at least one non-linearity.
G01N 29/036 - Analysing fluids by measuring frequency or resonance of acoustic waves
G01N 5/02 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
A distance measuring device (100) comprises a first sensing module (110), a second sensing module (120), a reference device (130), and an evaluating module (140). The first and second sensing modules are arranged on a common base line (150) and are each configured to detect the strength of a magnetic field (50) in a first and second sensing direction (111, 121), respectively. The reference device is movable with respect to the sensing modules along a movement trajectory (160) and comprises a magnetic field element to emit a magnetic field (50) detectable by the first and second sensing module. Each of the first and second sensing module has a sensing direction pointing towards the other sensing module. The evaluating module is configured to determine the distance between the base line and the reference device based on the strength of the magnetic field in the first and second sensing direction.
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
G01B 7/02 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
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
37.
LOAD MEASURING METHOD, LOAD MEASURING DEVICE AND LOAD MEASURING ARRANGEMENT
With the aim of improving the output signal quality of a load measurement by means of active magnetization, the invention relates to a load measuring method for measuring a mechanical load on a test object (14), comprising the following steps: a) generating a magnetic field and applying same to the test object (14); b) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a first magnetic field detection device (20) to generate a first measurement signal (U1, UAB); c) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a second magnetic field detection device (22) to generate a second measurement signal (U2, UAT); d) determining a third measurement signal (UBT) from the first measurement signal (U1, UAB) and the second measurement signal (U2, UAT) by calculation; and preferably the following steps: e) forming the difference between one (U2, UAT) of the first and second measurement signals and the determined third measurement signal (UBT) by calculation to generate an output signal; and f) determining the mechanical load imposed on the test object (14) on the basis of the output signal. The invention further relates to a corresponding load measuring device for performing the load measurement method.
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 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
38.
SENSOR HEAD, COMBINATION SENSOR, TORQUE MEASURING ARRANGEMENT, AND METHOD FOR MEASURING TORQUE AND ROTATIONAL SPEED
The aim of the invention is to significantly broaden the scope of application of a torque sensor (26) in a cost-effective manner and with simple means. In order to achieve said aim, the invention provides a sensor head (48) for a torque sensor (26) for detecting a torque of a rotary shaft (32), wherein the sensor head (48) comprises: at least one magnetic field generating device (50) for generating a magnetic field in the rotary shaft (32) and at least one torque magnetic field detection device (52) for measuring at least one parameter of the generated magnetic field in the rotary shaft (32) in order to derive therefrom a torque applied on the rotary shaft (32), as well as at least one separate surface-marking detection device (110), which is spaced apart from the torque magnetic field detection device (52), for detecting a surface marking (36) on the surface of the rotary shaft (32) in order to determine a rotational speed of the rotary shaft (32). The invention also relates to a combination sensor (S1), to a torque measuring arrangement (22) and to a measurement method using the sensor head (48).
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01P 3/488 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
39.
TORQUE TRANSMITTER AND TORQUE SENSOR, MANUFACTURING METHOD AND MEASURING METHOD
In order to measure torque on a shaft inexpensively in such a manner that the measurement is as independent as possible from the variations in distance or lack of uniformity in the material of the shaft around the circumference thereof, the invention provides a torque transmitter (10) for a torque sensor (12) for measuring a torque on a shaft (14), having a bearer plate (34), with a plurality of sensor element bearer plate regions (38), on each of which at least one sensor element (18) is arranged for detecting magnetic field changes on the basis of the magneto-elastic effect, and with at least one encompassing region (16), which is designed for at least partial encompassing of the shaft (14) around the circumference of the shaft (14), wherein at least one versatile connection region (40) is provided, by means of which at least one of the sensor element bearer plate regions (38) can be pivoted relative to another sensor element bearer plate region (38) or relative to the at least one encompassing region (16).
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
The invention provides a pressure sensor (10) that can be produced at low cost, operates more accurately and resists to high burst pressures. The pressure sensor (10) comprises at least one membrane (12) and a magneto-elastic detection device (14) for magneto-elastically detecting mechanical stress caused by pressurization.
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 13/02 - Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
G01L 9/16 - 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 by making use of variations in the magnetic properties of material resulting from the application of stress
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
41.
METHOD FOR PRODUCING A PRESSURE SENSOR MEASURING ELEMENT AND THUS OBTAINED PRESSURE SENSOR MEASURING ELEMENT
The aim of the invention is to economically produce a pressure measuring sensor element, and relates, according to one aspect, to a method for producing a pressure sensor measuring element for a pressure sensor which comprises at least one membrane and a covering protecting the membrane, the pressure sensor element being produced in a layer-by-layer generative production method. This makes it possible to, for example, easily construct a combi-sensor for detecting pressure and an additional parameter. It is also possible to structures for reinforcement or for influencing resonant frequency or for influencing heat conduction.
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 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
The aim of the invention is to allow a practical suitability of a force or torque sensor and the applicability thereof for different uses with a low-cost production process at the same time. According to the invention, this is achieved by a sensor head (10) for a magnetoelastic force or torque sensor for measuring a force or a torque in a ferromagnetic body (9), comprising the following: a magnetic field-generating unit (14) for generating a magnetic field in the ferromagnetic body (9) and a magnetic field-measuring unit (16) for measuring a change in the magnetic field in the ferromagnetic body (9), wherein the magnetic field-generating unit (14) has an excitation coil (18) and a soft-magnetic excitation flux amplification element (20), and the magnetic field-measuring unit (16) has multiple measurement coils (22) with a soft-magnetic measurement flux amplification element (24). At least the excitation coils (18) and the measurement coils (22, 22a-22d) are integrated into a common integrated component, such as a printed circuit board element (26) and/or MEMS component (28) in particular.
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 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
According to the invention, in order to improve a reliability of a gas compartment monitoring of a gas compartment (17) of an electrical system (40) filled with corrosive gas, a multi-port valve device (44) is provided for connecting a density monitor (20) to a system to be monitored in terms of gas density, comprising a first gas connection (13) for connecting the valve device (44) to the system, a second gas connection (14) for connecting to the density monitor (20), a third gas connection (15) for connecting a test device (19) for checking the functioning of the density monitor (20), and a switchover device for optionally connecting the second gas connection (14) to the first gas connection (13) or the third gas connection (15).
F16K 11/044 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
In order to improve accuracy in a density monitor (22) for monitoring a gas density in a test volume, the density monitor (22) of the invention comprises a membrane (24) which is connected to the test volume in such a way as to move in the test volume when a gas density changes, and a membrane movement detection device (26), which is connected to the membrane (24), for converting a movement of the membrane into an electrical signal, the membrane movement detection device (26) being coupled to the membrane (24) by means of a transmission element (28) in order to mechanically amplify the membrane movement path.
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
46.
GAS DENSITY MONITOR COMPRISING A TRANSMISSION ELEMENT, AND GAS DENSITY MONITORING METHOD
In order to improve the accuracy of a density monitor (22) for monitoring a gas density in a test volume, the density monitor (22) of the invention comprises a membrane (24) which is connected to the test volume in such a way as to move when the gas density in the test volume changes, and a membrane movement sensing device (26) that is connected to the membrane (24) so as to convert a movement of the membrane into an electric signal, the membrane movement sensing device (26) being coupled to the membrane (24) by means of a transmission element (28) in order to mechanically amplify the membrane movement path.
G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
47.
Pressure sensor measuring element and pressure sensor provided with the latter
A pressure sensor measuring element for a pressure sensor operates to detect pressure in a combustion space of an internal combustion engine. The pressure sensor measuring element includes a separating diaphragm, a plunger for the transmission of deflections of the separating diaphragm to a force measuring element, and with a sleeve which receives the plunger. The sleeve is closed by the separating diaphragm at a first end intended to face the combustion space and is designed to hold the force measuring element at the opposite second end. Accordingly, the pressure sensor measuring element can be produced more cost-effectively. Furthermore, the plunger can be produced in one piece with the separating diaphragm as a diaphragm/plunger unit, and the sleeve and the diaphragm/plunger unit can be formed from the same metal material.
G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
G01L 9/04 - 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 by making use of variations in ohmic resistance, e.g. of potentiometers of resistance strain gauges
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 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
G01L 23/18 - Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquidIndicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by resistance strain gauges
48.
PRESSURE SENSOR MEASURING ELEMENT AND PRESSURE SENSOR WHICH IS PROVIDED WITH THE LATTER AND IS INTENDED TO DETECT THE PRESSURE IN A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE
The invention relates to a pressure sensor measuring element (26) for a pressure sensor (10) for detecting the pressure in a combustion chamber of an internal combustion engine during operation of the latter, having a separating diaphragm (54), a plunger (56) for transmitting deflections of the separating diaphragm (54) to a force measuring element (32), and a sleeve (36) which accommodates the plunger (56), is closed by the separating diaphragm (54) at a first end (12) facing the combustion chamber and is designed to hold the force measuring element (32) at the opposite, second end (16). In order to be able to produce the pressure sensor measuring element (26) in a more cost-effective manner with the same functionality, it is proposed to form the plunger (56) in a single piece with the separating diaphragm (54) as a diaphragm/plunger unit (38), wherein the sleeve (36) and the diaphragm/plunger unit (38) are formed from the same metal material.
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 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
G01L 23/18 - Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquidIndicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by resistance strain gauges
09 - Scientific and electric apparatus and instruments
Goods & Services
electrical measurement, signaling, control devices and instruments, namely, [ amperemeters, multimeters, voltmeters and PH-meters; ] temperature sensors, pressure sensors, density sensors, [ PH-electrodes and PH-sensors; ] temperature transmitters, pressure transmitters, density transmitters; temperature indicators, pressure indicators, density indicators, [ and PH-indicators; ] thermostats, pressure switches, and density controls
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric measuring, signaling, monitoring apparatus and
instruments, in particular monitoring and measuring
apparatus, sensors, transmitters, indicators, thermostats,
pressostats, density controllers.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Electrical measurement, signaling, control devices and instruments namely, sensors, transmitters, indicators, thermostats, pressure switches and density controls.
