The present invention concerns a sensor device (1) comprising a transducer (3) adapted to generate a magnetic field (MF), the sensor device (1) is configured to measure a beating gap (G) between a first (5) and a second (7) refining disc of a refiner apparatus (9) and is configured to be mounted in the first refining disc (5), the sensor device (1) comprises a magnetic pole (13), a coil assembly (15) and a measuring head (11′), which measuring head (11′) is configured to be set in calibration position relative to the second refining disc (7) for calibration of the sensor device (1). The measuring head (11′) comprises an outer end (10′) made of a non-magnetic material configured to be positioned in abutment with the second refining disc (7) in a calibration sequence. The present invention also concerns a method of calibration of said sensor device (1).
G01B 7/00 - Measuring arrangements characterised by the use of electric or magnetic techniques
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
The present invention concerns an in-motion weighing system (1) comprising a frame arrangement (3) designed to move a can device (5) from an engagement position (ENG) to an emptying position (EMP). The invention further concerns a dynamic weighing unit (101) configured to weigh the can device (5) in any position and/or continuously along a motion path from the engagement position (ENG) to the predetermined intermediate position (PIP), wherein the dynamic weighing unit (101) is configured to detect start of motion of the can device (5) and/or frame arrangement (3) and configured to detect motion and/or activation of a locking device (11, 11', 11'') in the predetermined intermediate
B65F 3/02 - Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto
G01G 19/12 - Weighing apparatus or methods adapted for special purposes not provided for in groups for incorporation in vehicles having electrical weight-sensitive devices
3.
A BEATING GAP SENSOR DEVICE FOR A REFINER APPARATUS AND CALIBRATION METHOD
The present invention concerns a sensor device (1) comprising a transducer (3) adapted to generate a magnetic field (MF), the sensor device (1) is configured to measure a beating gap (G) between a first (5) and a second (7) refining disc of a refiner apparatus (9) and is configured to be mounted in the first refining disc (5), the sensor device (1) comprises a magnetic pole (13), a coil assembly (15) and a measuring head (11'), which measuring head (11') is configured to be set in calibration position relative to the second refining disc (7) for calibration of the sensor device (1). The measuring head (11') comprises an outer end (10') made of a non-magnetic material configured to be positioned in abutment with the second refining disc (7) in a calibration sequence. The present invention also concerns a method of calibration of said sensor device (1).
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
The present invention concerns a fiber concentration profile measuring apparatus (1) comprising a plurality of conductor bodies (9, 509), configured to be coupled to a primary AC power source (17) comprising an impedance measuring unit (18), the respective conductor body (9, 509) exhibits a first electric contact surface (10) configured to transfer a primary electric current (PEC) from the primary AC power source (17) to a second electric contact surface (12) via a fiber pad material being pulped. Each conductor body (9, 509) is coupled in series with a respective electronic switching device (49', 49'', 49''', 49'''', 49'''''), each of which is configured to switch between on-and off-state for feeding or not feeding the primary electric current (PEC) to the associated conductor body (9, 509); and a secondary power source (21), configured to generate a secondary electric current injected with a range of frequencies, is coupled to each electronic switching device (49', 49'', 49''', 49'''', 49''''') via a respective series resonance circuit (SRC', SRC'', SRC''', SRC'''', SRC''''') being individually adapted to give free passage for the secondary electric current at a certain frequency providing said on-state.
The present invention regards a refiner plate segment (1) for a disc-type refiner apparatus (30), adapted to grind a saturated cellulosic material (M) in a refining gap (17) defined by opposed discs (20) during use of the apparatus (30), the material being moved from a refiner inlet opening (21) towards an outer edge (7) of the segment (1). The outer edge (7) of the segment (1) comprises a barrier arrangement (15) to increase the pressure in the refining gap (17) for retaining the liquid phase out to said outer edge (7). The present invention also regards a method of refining a saturated cellulosic material (M) in a refining gap (17) defined by two opposed discs (20) of a disc arrangement.
The present invention regards a weighing device (1) having a first portion (3) configured to be mounted on a platform (5) and having a second portion (7) configured to be coupled to an object (9) to be weighed, which object (9) is affected by gravity (G) in a first direction (Rl) during use of the weighing device (1). The weighing device (1) comprises a first section (SI) extending from the first portion (3) to the second portion (7) in a second direction (R2); a second section (S2) extending from the first portion (3) to a free end (E); an inductive distance measuring sensor (11) comprising a magnetically conductive core (13) having a first end surface (15); the inductive distance measuring sensor (11) is mounted to the first section (SI), wherein the first end surface (15) of the magnetically conductive core (13) faces a second section plane (SP2) of the second section (S2), or is mounted to the second section (S2), wherein the first end surface (15) of the magnetically conductive core (13) faces a first section plane (SPl) of the first section (SI); the first section (SI) being flexible and the second section (S2) being rigid; a gap (g) is provided between the first end surface (15) of the magnetically conductive core (13) and the second section plane (SP2) or between the first end surface (15) of the magnetically conductive core (13) and the first section plane (SPl); the gap (g) exhibits a width which is variable in said first direction (Rl) and which corresponds with a distance to be measured by the inductive distance measuring sensor (11).
G01G 3/12 - Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
B65F 3/00 - Vehicles particularly adapted for collecting refuse
G01G 19/12 - Weighing apparatus or methods adapted for special purposes not provided for in groups for incorporation in vehicles having electrical weight-sensitive devices
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
7.
Device for detecting profile in refiner and method therefore
The invention regards a measuring device, comprising a conductor body (7), for detecting the degree of fiber concentration and/or steam point (SP) of a fiber pad (33) being pulped, during use of the device (3), in a grinding gap (15) between refiner discs (11, 13) of a refiner (1). The conductor body (7) exhibits a first electric contact surface (17) adapted to provide electrical contact with a second electric contact surface (19) for transferring an electric current via the fiber pad (33) material. The invention also regards a method for detecting the degree of fiber concentration and/or steam point (SP) of a fiber pad (33). The method comprises the steps of mounting of the conductor body (7) to one of the refiner discs (13), grinding the fiber pad (33) material between the refiner discs (11, 13), detecting alteration of the conductivity and/or electrical resistivity of the fiber pad (33) material, and adjusting inflow of water and/or fiber material from said detected alteration.
G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
The present invention regards a refiner plate segment (1) for a disc-type refiner apparatus (30), adapted to grind a saturated cellulosic material (M) in a refining gap (17) defined by opposed discs (20) during use of the apparatus (30), the material being moved from a refiner inlet opening (21) towards an outer edge (7) of the segment (1). The outer edge (7) of the segment (1) comprises a barrier arrangement (15) to increase the pressure in the refining gap (17) for retaining the liquid phase out to said outer edge (7). The present invention also regards a method of refining a saturated cellulosic material (M) in a refining gap (17) defined by two opposed discs (20) of a disc arrangement.
The invention regards a measuring device, comprising a conductor body (7), for detecting the degree of fiber concentration and/or steam point (SP) of a fiber pad (33) being pulped, during use of the device (3), in a grinding gap (15) between refiner discs (11, 13) of a refiner (1). The conductor body (7) exhibits a first electric contact surface (17) adapted to provide electrical contact with a second electric contact surface (19) for transferring an electric current via the fiber pad (33) material. The invention also regards a method for detecting the degree of fiber concentration and/or steam point (SP) of a fiber pad (33). The method comprises the steps of mounting of the conductor body (7) to one of the refiner discs (13), grinding the fiber pad (33) material between the refiner discs (11, 13), detecting alteration of the conductivity and/or electrical resistivity of the fiber pad (33) material, and adjusting inflow of water and/or fiber material from said detected alteration.
The invention shows s system (1 ) and a method for registering a collection of refuses from a refuse bin (19) to a refuse collection lorry (3). The refuse bin is provided with an information carrier (21 ) which is adapted to send information upon reception of an electromagnetic signal. An interrogator (9) and a registering unit (4) are provided on a holder (15), which is attachable to a person (23) who collects the refuse. The interrogator (9) is adapted to send an electromagnetic signal and to receive information from the information carrier (21 ). The registering unit (4) is connected to the interrogator (9) and is able to register information received from the interrogator (9).
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G07C 1/20 - Checking timed patrols, e.g. of watchman
The present invention regards a material thickness measuring device(1)for measuring the thickness (t) of non-magnetic web (3) applied to a magnetic material (5). The device (1) comprises an optical sensor device (7, 9, 45) for a first interaction with an upper side (11) of the web (3) as an optical reference element (29). It also comprises a reluctance transducer sensor device (31) for a second interaction with the magnetic material (5) as a magnetic reference element on the opposite side of the web (3). A control unit (39) is adapted for each point of measuring (P, PC) to calculate the thickness (t)from said interactions. The reluctance transducer sensor device (31) comprises a hollow conical magnetic core (41) around which circumference at least two coils (33, 35) of different diameter are mounted. The coil (33) having the smallest diameter is situated nearest the web (3) to be measured. The optical sensor device (7,9, 45) is adapted for sensing light beams (19) transferred through the hollow conical core (41) in directions which are oblique relative the plane (29) of said upper side (11).
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
12.
METHOD AND MEANS FOR NON-CONTACT MEASURING THICKNESS OF NON-METAL COATING ON SURFACE OF METAL MATRIX
The present invention relates to a material thickness of a web (1) of non-magnetic material applied to a magnetic material (2) measuring means. A sensor assembly (4) comprises an optical sensor (6), for interaction with a first side (10) of said web (1) and a reluctance transducer (8), which is arranged close to said first side of the web (1) for interaction with said magnetic material (2) as a magnetic reference element on the opposite side (12) of the web (1). Said optical sensor, preferably a confocal senor (6), is provided for interaction with said first side (10) of the web (1) as an optical reference element and said sensor assembly (4) is configured with said confocal sensor (6) and said reluctance transducer (8) in combination and related to a reference point (r p). The confocal sensor (6) emits optical signals (30) as input to an optical controller (20), which optical signals are representative of a first distance (d1) from said reference point (r p ) to the web (1). The reluctance transducer (8) emits electric signals (32) as input to an electric control unit (22), which electric signals are representative of a second distance (d2) from said reference point (r p ) to said magnetic material (2). Said optical controller (20) and said electric control unit (22) are individually connected to a processor (24), in which a third distance (d3), which represents the material thickness of the web (1), is calculated.
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
13.
DEVICE FOR MEASURING A LAYER THICKNESS AND A METHOD FOR MANUFACTURING SAID DEVICE
Device for measuring thickness of a layer or a coating layer on an elongated strip (10) of material passing by the measuring device. The device comprises means for measuring the thickness in different positions across the width of the elongated strip (10). The means for measuring the thickness is placed in radial direction from a longitudinal axis (21) through a roller (20) that is supporting the elongated strip (10). The means for measuring the thickness comprises a sensor head (12) arranged to rest on a gas cushion generated between the sensor head (12) and the surface of the elongated strip (10), and the outer periphery (25) of the roller (20) is curved in axial direction with a larger diameter towards the ends of the roller (20).
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01B 13/06 - Measuring arrangements characterised by the use of fluids for measuring length, width, or thickness for measuring thickness
14.
SENSOR HEAD, A MEASURING DEVICE COMPRISING THE SENSOR HEAD AND A METHOD FOR CALIBRATING THE MEASURING DEVICE
The present invention relates to a sensor head for measuring the thickness of a layer coated on an elongated strip of material passing by the sensor head. The sensor head has a front surface that is facing the surface of the elongated strip. The front surface comprises an air outlet placed in the centre of the front surface. The outlet is connected to an gas supply device generating an gas flow out from the air outlet directed substantially perpendicular from front surface in order to form a gas cushion that the sensor head is resting on. The front surface further comprises two or four sensors placed at the same distance from the centre of the front surface, with the two sensors radially opposite to each other, and in case of four sensors the additional two sensors are placed radially opposite to each other between the first two sensors. The present invention also involves a measuring device comprising the sensor head described above and a method for calibrating the measuring device.
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01B 13/06 - Measuring arrangements characterised by the use of fluids for measuring length, width, or thickness for measuring thickness
15.
PROCESS AND GAUGE FOR MEASURING FIBER CONCENTRATION
The present invention relates to a method for measuring the degree of fibre concentration in a pulp in a machine (1), in particular a refiner for the manufacture of paper pulp, which machine (1) comprises a stator (5) and an opposing rotor (3), which form a grinding gap (6) for the pulp. The stator (5) is provided with at least one sensor device (7), designed to interact with a rotor surface and comprising an impedance meter body (10) with a sensor surface (18) which impedance meter body (10) is mounted in the stator (5) in such a way that it can move axially. The method is characterized in that measurements of the impedance between the rotor surface and the sensor surface (18) are carried out during an axial movement of the impedance meter body (10) and in that the measured impedance differences are utilized together with the size of the movement to determine the dielectric constant of the pulp, from which the degree of fibre concentration in the pulp is derived. The invention also relates to a sensor device (7) arranged to carry out the method according to the above.
patents
