Abstract: The invention relates to a magnet assembly (10) for a sensor device for detecting a measurement variable characterizing a rotation state of a steering shaft of a motor vehicle, to a sensor device and to a motor vehicle, wherein the magnet assembly (10) has a sleeve (11) and a magnetic element (12), which is connected in a form-fitting manner to the sleeve (11), wherein the sleeve (11) is designed for connecting the magnet assembly (10) to a first part of the steering shaft and has at least one stop flange (11C), which extends outwards in the radial direction in a radial plane, for axially securing the magnetic element (12) in a first axial direction (A1), wherein the magnetic element (12) is arranged concentrically with respect to the sleeve (11) and, with its first end side (S1), is at least partially supported axially on the stop flange (11C) and is thereby secured in the first axial direction (A1).

Abstract: Embodiments of the present disclosure include methods, apparatuses, systems, and computer program product for enabling multi-point shunt calibration of a sensor device. Multi-point shunt calibration provides at least a first, second, and third simulated calibration output, each simulated calibration output corresponding to an actual reading value and an expected reading value. The simulated calibration outputs are associated with a predefined output sequence, where each simulated calibration output is separated from an adjacent simulated calibration output by an output step size. Some embodiments are configured for automatically outputting each simulated calibration output for a particular period of time before outputting an adjacent simulated calibration output in the predefined output sequence. The various simulated calibration outputs, actual reading values, and/or expected values may be used in determining calibrated reading values for the sensor device.

Abstract: A command model connected to plurality of flight components of an electric aircraft and comprises a circuitry configured to detect a predicted state and a measured state datum, transmit predicted state datum to an actuator model, and transmit measured state datum to a plant model. An actuator model connected to the sensor configured to receive the predicted state datum and generate a performance datum. A plant model connected to the sensor configured to receive measured state datum and performance datum from the actuator model, transmit a feedback path to controller, and generate an inconsistency datum as a function of the measured state datum and the performance datum. A controller communicatively connected to the sensor, wherein the controller is configured to receive the inconsistency datum from the plant model and apply a torque to the aircraft as a function of the inconsistency datum.

Abstract: An electromechanical power steering unit for a motor vehicle includes an integral component having a torque sensor unit, which detects the rotation of the upper steering shaft relative to the lower steering shaft. The torque sensor unit includes a ring magnet rotationally fixed to the upper steering shaft and a magnetic flux guide connected to the lower steering shaft. A magnet sensor detects the rotation of the shaft connected to the ring magnet with respect to the lower shaft connected to the magnetic flux guide and the ring magnet is carried by a ring magnet sleeve, which sits on the upper steering shaft and is made from a thermoplastic material and is molded by way of ultrasound forming in the upper steering shaft in one region for mounting on the upper steering shaft.

Abstract: Embodiments of the present disclosure include methods, apparatuses, systems, and computer program product for enabling multi-point shunt calibration of a sensor device. Multi-point shunt calibration provides at least a first, second, and third simulated calibration output, each simulated calibration output corresponding to an actual reading value and an expected reading value. The simulated calibration outputs are associated with a predefined output sequence, where each simulated calibration output is separated from an adjacent simulated calibration output by an output step size. Some embodiments are configured for automatically outputting each simulated calibration output for a particular period of time before outputting an adjacent simulated calibration output in the predefined output sequence. The various simulated calibration outputs, actual reading values, and/or expected values may be used in determining calibrated reading values for the sensor device.

Abstract: A signal processing apparatus for an electric tool is provided for generating a motor control signal for controlling a motor by performing a smoothing process on a torque value signal from a torque sensor of an electric tool by using a filter. The signal processing apparatus includes a half width detector circuit that detects a half width of the torque value signal; and a calculator circuit that controls a cut-off frequency of the filter to change the cut-off frequency according to a number of hits of the electric tool, based on the detected half width of the torque value signal.

Abstract: An improved steering shaft assembly is provided. The steering shaft assembly further includes an output shaft that is rotatable with respect to the input shaft. The output shaft includes a rotary valve portion and a longitudinal portion. The steering shaft assembly further includes a torsion bar coupled to the input shaft and coupled to the output shaft distal from the input shaft. The steering shaft assembly further includes a mid-coupler extending around about the longitudinal portion of the output shaft and adapted to cooperate with the rotary valve portion of the output shaft. The steering shaft assembly further includes a screw mechanism extending about the longitudinal portion of the output shaft and adapted to cooperate with the mid-coupler. The screw mechanism is adapted to move laterally relative to the output shaft to maintain transfer of power from between output shaft and the screw mechanism despite misalignments therebetween.

Abstract: A wireless load cell monitoring system and method may comprise a remote load cell assembly and a base station. Embodiments of the remote load cell assembly comprise a remote processor, a remote memory, a battery, a remote transceiver, an analog-to-digital converter, and a load cell. Embodiments of the base station comprise a base processor, a base memory, a base transceiver, and a digital-to-analog converter. Embodiments of the remote load cell assembly pair with the base station using a wireless communication protocol, read analog voltage data from the load cell, convert the load cell analog voltage data into digital load data, and transmit the digital load data to the base station. Embodiments of the base station convert the digital load data into analog voltage data and output the analog voltage data.

Abstract: A command model connected to plurality of flight components of an electric aircraft and comprises a circuitry configured to detect a predicted state and a measured state datum, transmit predicted state datum to an actuator model, and transmit measured state datum to a plant model. An actuator model connected to the sensor configured to receive the predicted state datum and generate a performance datum. A plant model connected to the sensor configured to receive measured state datum and performance datum from the actuator model, transmit a feedback path to controller, and generate an inconsistency datum as a function of the measured state datum and the performance datum. A controller communicatively connected to the sensor, wherein the controller is configured to receive the inconsistency datum from the plant model and apply a torque to the aircraft as a function of the inconsistency datum.

Abstract: Embodiments of the present disclosure include methods, apparatuses, systems, and computer program product for enabling multi-point shunt calibration of a sensor device. Multi-point shunt calibration provides at least a first, second, and third simulated calibration output, each simulated calibration output corresponding to an actual reading value and an expected reading value. The simulated calibration outputs are associated with a predefined output sequence, where each simulated calibration output is separated from an adjacent simulated calibration output by an output step size. Some embodiments are configured for automatically outputting each simulated calibration output for a particular period of time before outputting an adjacent simulated calibration output in the predefined output sequence. The various simulated calibration outputs, actual reading values, and/or expected values may be used in determining calibrated reading values for the sensor device.

Abstract: A downhole acoustic transmitter has a piezoelectric transducer, an enclosure in which the piezoelectric transducer is housed, a transducer preload means which applies a selected compressive force against the transducer such that a mechanical preload is applied to the transducer, and an acoustic tuning element which has a first end coupled to the transducer preload means or the transducer, and an open second end. The acoustic tuning element is not coupled to anything but the transducer preload means or transducer, so the transducer preload means effectively has a second open end and thus can maintain the same preload compressive force on the transducer even when the transmitter is subjected to tension and compressive forces during operation.

Abstract: The present invention may provide a torque sensor including: a rotor; a stator disposed outside the rotor; a sensor assembly configured to measure a magnetic field generated between the rotor and the stator, and a housing; the rotor and the stator are disposed outside the housing, the sensor assembly is disposed inside the housing and includes an alignment means configured to align a position of the housing with a position of the stator in a direction of an axis of the rotor, and the alignment means is disposed on at least one of the housing and the stator.

Abstract: To provide an engine test apparatus and method, which can easily enhance the test accuracy. The engine test apparatus 10 of the present invention includes: a dynamometer 14, which applies torque to an output shaft of an engine 12 via a shaft member 32; a torque meter 36, which is disposed on the shaft member 32 and measures torque; and a control device 20, which computes a torque command value using a rotational frequency feedback value in order to apply feedback control based on a rotational frequency to the dynamometer 14. The control device 20 subtracts a value measured by the torque meter 14 from the torque command value to find a correction torque command value and controls the dynamometer 14 using the correction torque command value.

Abstract: A downhole acoustic transmitter has a piezoelectric transducer, an enclosure in which the piezoelectric transducer is housed, a transducer preload means which applies a selected compressive force against the transducer such that a mechanical preload is applied to the 5 transducer, and an acoustic tuning element which has a first end coupled to the transducer preload means or the transducer, and an open second end. The acoustic tuning element is not coupled to anything but the transducer preload means or transducer, so the transducer preload means effectively has a second open end and thus can maintain the same preload compressive force on the transducer even when the transmitter is subjected to tension and 10 compressive forces during operation.

Abstract: The present invention relates to a magnet-integrated-type torque angle sensor module and, more particularly, to a torque angle sensor module that integrates magnets used for detecting steering direction, steering angle, torque, and steering speed and simplifies component configuration, capable of minimizing the rate of defects during assembly, improving disassembling ability, and inducing performance stabilization.

Abstract: Various methods and systems are provided for detecting turbocharger degradation. In one example, a method comprises detecting an axial position of a turbine rotor based on output from a turbine speed sensor, and if the axial position is greater than a threshold distance from a base position, indicating turbocharger degradation.

Abstract: Provided is a torque sensor. The torque sensor comprises a rotor section; and a stator section comprising a stator holder, wherein the stator holder comprises a plurality of coupling pieces protruding in an axial direction, and a hog ring coupled to pass through the plurality of coupling pieces, wherein the plurality of coupling pieces have through-holes formed in a circumferential direction and an inner wall of the through-hole is adhered to the hog ring.

Abstract: A radio communication system includes: a first member; a second member; a transmitting apparatus provided on the first member; and a receiving apparatus provided on the second member, wherein the first member and the second member are provided such that they can move relative to each other; and radio communication is performed when the transmitting apparatus and the receiving apparatus face each other as the first member and the second member move relative to each other.

Abstract: A power-operated hand-held power tool, in particular a power tool comprising an oscillation drive for driving a tool in an oscillating manner, comprising at least one sensor for detecting vibrations and comprising a controller which is coupled to the at least one sensor to control at least one operating parameter of the power tool according to an output signal of the at least one sensor, the power tool being configured to receive different tools, and the controller being configured to evaluate the output signal of the at least one sensor and preferably to compare the output signal with stored characteristic values for the vibrations of different tools so as to control at least one operating parameter of the power tool according to said comparison, is specified.

Abstract: Provided is a dynamometer system provided with a shaft-torque meter, and capable of an equivalent evaluation to that of a system provided with a load cell. A dynamometer system is provided with an encoder for detecting the angular velocity, a shaft-torque meter for detecting the shaft torque, and a control device (6A) for controlling the dynamometer on the basis of the angular velocity (omegaM) of the dynamometer and the detection value (Tsh) of the shaft-torque meter. The torque-control device (6A) is provided with: a computed-torque calculation unit (61A) for calculating a computed-torque value (Tcal) by adding the detection value (Tsh) to a value obtained by multiplying the angular acceleration (omegaMss) by the moment of inertia (TM); and a computed-torque controller (62A) for calculating a torque-current-command value (Tdyref), on the basis of an externally inputted command value (Tref) and a computed-torque value (Tcal).

Abstract: Embodiments of methods and devices are disclosed for enabling network devices to join a network. These embodiments generally include a first network device, which is joined to the network, sending authentication information. If the authentication information is determined as valid by a second network device, the second network device sends a join request toward the first network device. During or after the joining process, the first and second network devices can share scheduling information. These embodiments enable a network to have additional security while consuming low amounts of power.

Abstract: A method for calibrating a torsion torquemeter including: placing a torsion torquemeter in a first state; performing first measurements determining first and second angular offsets, and measuring torque output by the power shaft using a reference torquemeter; placing the torsion torquemeter in a second state; performing second measurements determining the first and second angular offsets, and measuring torque output by the power shaft; placing the torquemeter in a third state; performing third measurements determining the first and second angular offsets, and measuring the torque output by the power shaft; placing the torquemeter in a fourth state; performing fourth measurements determining the first and second angular offsets, and measuring the torque output by the power shaft; calibrating the calculation unit based on the first, second, third, and fourth measurements.

Abstract: Provided is a dynamometer system capable of stable speed control and position control even in instances of large load inertia. A speed-control device (6C) in a dynamometer system is provided with: a speed-control-circuit unit (61A) for calculating a torque-current-command value (T2) on the basis of an angular-velocity-command value (?ref) and the angular velocity (?M) of the dynamometer; a disturbance-observer-compensation unit (63C) for correcting the torque-current-command value by subtracting a disturbance observer (Tobs) from the torque-current-command value (T2); and a shaft-torque-detection-compensation unit (62A) for correcting the torque-current-command value by adding a shaft-torque-detection-compensation amount (Tsh_K), which is obtained by multiplying a filter transfer function (GBPF) and a control gain (K1) by a shaft-torque-detection value (Tsh), to a torque-current-command value (T1).

Abstract: A torque-measurement device that has a rotational axis, and wherein the torque-measurement device includes an inner tubular structure, an outer tubular structure, and a plurality of ribs that each have a length dimension in a rib-length direction parallel to the rotational axis, a rib-width dimension in a width direction perpendicular to the length direction and extending radially rotational axis, and a minimum rib-thickness dimension in a thickness direction perpendicular to the length direction and perpendicular to the width direction, wherein the length dimension is greater than the width dimension and the width dimension is greater than the thickness dimension, wherein each of the plurality of ribs has a center plane that lies in the rib-length direction and the rib-width direction, and wherein a torque applied between the inner tubular structure and the outer tubular structure results in an angular displacement of inner tubular structure relative to the outer tubular structure.

Abstract: A non-contacting torque sensor comprises a magnetic flux generating rotor and a magnetic flux detecting probe. The magnetic flux generating rotor is disposed axially between a first stator and a second stator and has a radially outboard surface and plurality of N pole magnets and S pole magnets alternatingly disposed proximate the radially outboard surface. Each stator has a plurality of stator teeth, with each one of said plurality of stator teeth corresponding to a unique one of said plurality of N pole magnets and S pole magnets. The magnetic flux detecting probe is disposed at a distance from the radially outboard surface and configured for detecting variations in magnetic flux produced by the magnetic flux generating rotor to detect a change of a relative twist between the magnetic flux generating rotor and the first stator and second stator. The N pole magnets and S pole magnets are injection molded.

Abstract: A torque sensor includes a magnetism generation portion that rotates together with a first shaft, a rotating magnetic circuit portion that rotates together with a second shaft, a fixed magnetic circuit portion fixed to a housing, a magnetism detector that detects a magnetic flux density guided from the magnetism generation portion to the fixed magnetic circuit portion through the rotating magnetic circuit portion in accordance with torsional deformation of the torsion bar, and a shield disposed between the rotating magnetic circuit portion and the magnetism detector in order to shield the magnetism detector magnetically.

Abstract: A torque sensor includes: a torsion bar; a multi-pole magnet; a pair of yokes on an outside of the multi-pole magnet in a radial direction and providing a magnetic circuit in a magnetic field generated by the multi-pole magnet; and a pair of magnetic sensors arranged along a circumferential direction. Each magnetic sensor includes a magnetism sensing part for detecting a magnetic flux density generated in the magnetic circuit, and outputs a detection signal to an external computing device. The magnetic sensors output the detection signals to the external computing device such that the computing device calculates a sum of outputs or a difference of outputs of the magnetic sensors so as to cancel a variation of the outputs produced by a magnetic flux generated from the multi-pole magnet and directly reaching the magnetism sensing parts.

Abstract: A torque detector includes a permanent magnet, a pair of magnetic yokes, and a magnetic sensor. The magnetic yokes include a first magnetic yoke and a second magnetic yoke. The first magnetic yoke has a first ring and a plurality of first teeth extending from the first ring in an axial direction. The second magnetic yoke has a second ring and a plurality of second teeth extending from the second ring in the axial direction. The first teeth extend in the axial direction beyond the second ring of the second magnetic yoke. The second teeth extend in the axial direction beyond the first ring of the first magnetic yoke.

Abstract: Provided is a complex sensing apparatus for a steering system. In the complex sensing apparatus in accordance, since an insertion projections of a first PCB are inserted into a through-holes of a second PCB to be press-fitted to each other, the first PCB is securely coupled to the second PCB. In addition, since a support member configured to surround and support an edge of the first PCB is coupled to the second PCB, the first PCB is more securely coupled to the second PCB. Accordingly, since there is no probability of separating the first PCB from the second PCB and there is no probability of occurrence of cracks in a soldered part between the first and second PCBs, reliability of products can be improved.

Abstract: A torque-measurement device that has a rotational axis, and wherein the torque-measurement device includes an inner tubular structure, an outer tubular structure, and a plurality of ribs that each have a length dimension in a rib-length direction parallel to the rotational axis, a rib-width dimension in a width direction perpendicular to the length direction and extending radially rotational axis, and a minimum rib-thickness dimension in a thickness direction perpendicular to the length direction and perpendicular to the width direction, wherein the length dimension is greater than the width dimension and the width dimension is greater than the thickness dimension, wherein each of the plurality of ribs has a center plane that lies in the rib-length direction and the rib-width direction, and wherein a torque applied between the inner tubular structure and the outer tubular structure results in an angular displacement of inner tubular structure relative to the outer tubular structure.

Abstract: A non-contacting torque sensor comprises a magnetic flux generating rotor and a magnetic flux detecting probe. The magnetic flux generating rotor is disposed axially between a first stator and a second stator and has a radially outboard surface and plurality of N pole magnets and S pole magnets alternatingly disposed proximate the radially outboard surface. Each stator has a plurality of stator teeth, with each one of said plurality of stator teeth corresponding to a unique one of said plurality of N pole magnets and S pole magnets. The magnetic flux detecting probe is disposed at a distance from the radially outboard surface and configured for detecting variations in magnetic flux produced by the magnetic flux generating rotor to detect a change of a relative twist between the magnetic flux generating rotor and the first stator and second stator. The N pole magnets and S pole magnets are injection molded.

Abstract: A torque detection device includes: a magnetic flux collecting unit, and a sensor housing. The magnetic flux collecting unit includes a holder, first and second magnetic flux collecting rings, and a magnetic shield. The holder has upper and lower through-holes. The first and second magnetic flux collecting rings are fitted to an inner periphery of the holder. The magnetic shield is fitted to an outer periphery of the holder so as to cover the through-holes. The sensor housing is formed integrally with the magnetic flux collecting unit by supplying resin onto an outer periphery of the magnetic flux collecting unit. The holder has a resin flow passage in its outer periphery. Resin that is supplied at the time of forming the sensor housing flows into the through-holes through the resin flow passage.

Abstract: The present invention relates to an apparatus for determining torque in a shaft, the apparatus comprising an elongate member with a weakened region partway along its length, and means for securing the member to the shaft either side of the weakened region, preferably adjacent each end of the elongate member. The invention extends to a method of localising the twist a shaft undergoes, comprising securing an elongate member to a shaft, wherein the elongate member comprises a weakened region partway along its length.

Abstract: A method for an automatic transmission includes measuring torque of a component of the transmission using a torque sensor in communication with the component. The torque of the component is estimated from information other than the measured torque. The measured torque is rejected from being used in a control operation of the transmission if the difference between the measured torque and the estimated torque is greater than a selected threshold.

Abstract: A piezoelectric sensing element includes a ring type piezoelectric device, two ceramic structural adhesives, two electrode sheets, two structural adhesives, a ring type sheet, and a disk-shaped cylindrical ceramic sheet. The two ceramic structural adhesives, respectively located above and below the ring type piezoelectric device. The two electrode sheets, respectively located above and below the two ceramic structural adhesives. The two structural adhesives, respectively located above and below the two electrode sheets. The ring type sheet, located above or below one of the two structural adhesives. The disk-shaped cylindrical ceramic sheet, located below or above another of the two structural adhesives.

Abstract: A bridge circuit includes a plurality of half-bridges formed of sensor elements, which change impedance in accordance with a rotation angle of a detection target. A control circuit acquires output signals of the half-bridges and calculates a phase correction value for correcting a phase deviation. A memory circuit stores the phase correction value. The control circuit corrects a pre-correction rotation angle by the phase correction value. Since the pre-correction rotation angle is corrected by the phase correction value, a rotation angle of the detection target is detected with high accuracy even if the sensor elements are assembled with some positional deviations.

Abstract: A torque sensor which detects a deflection angle between an input and an output shaft which are aligned with a shaft axis. An annular sine ring, annular cosine ring, and annular flux return ring, each constructed of a ferromagnetic material, are coaxially disposed around the shaft axis. A sine spoke has one end attached to the output shaft and its other end closely adjacent the sine ring and, similarly, a cosine spoke is secured to the output shaft at one end and is positioned closely adjacent the cosine ring at its other end. A pair of flux return spokes are also secured to the output shaft, each diametrically opposed from the sine or cosine spoke, and have their outer ends closely adjacent the return ring. A magnetic flux bridge is formed between the return flux ring and the sine ring as well as the cosine ring while magnetic sensors determine the magnitude of the flux across each bridge.

Abstract: Sensors for outputting signals indicative of a rate of change of torque experienced by a magnetized member in response to a change in torque experienced by the member are described. Such sensors include at least one sense element capable of detecting a change in a magnetic parameter of a magnetized region of the member positioned proximate to the sense element in response to a change in torque applied to the member. Devices for detecting and/or measuring rates of changes in or of torque that employ one or more of these sensors are also described, as are various applications for such devices.

Abstract: A hub for measuring the driving power of a cycle wheel including a central shaft defining an axis of rotation of the wheel, a hub body mounted to rotate freely about the shaft, a flange mounted to rotate freely about the hub body and axially aligned with the hub body, as well as a torque sensor including a test body which supports at least one strain gauge. The torque sensor is housed in a two-part housing which includes a cutout, arranged in an outer radial surface of the hub body, and a notch, arranged in an outer radial surface of the flange.

Abstract: A permanent magnet includes magnetic poles that are arranged so as to alternate in polarity in the circumferential direction of the axis of rotation. The magnet is attached to one of a pair of rotatable members. The rotatable members are relatively rotatable about an axis of rotation. A magnetic flux inducing ring, including an annular ring body and a plurality of protrusions protruding from the ring body, is attached to the other rotatable member. A plurality of magnetic sensors is arranged adjacent to the ring body. A first facing portion and a second facing portion, each for inducing a part of a magnetic flux of the ring body, are provided and do not rotate with the permanent magnet and the magnetic flux inducing ring.

Abstract: A relative rotational angular displacement detection device includes a pair of rotatable members relatively rotatable in a circumferential direction. A permanent magnet is attached to one of the rotatable members and includes magnetic poles magnetized in an axial direction of the axis of rotation and arranged to alternate in polarity in the circumferential direction. A magnetic flux inducing ring includes an annular ring body attached to the other of the rotatable members and is arranged coaxially with the axis of rotation, and a plurality of protrusions having a circumferential width smaller than a circumferential width of a magnetic pole. A magnetic detection portion is configured to detect a magnetic flux of the ring body of the magnetic flux inducing ring. The flux inducing ring is magnetized depending on a relative positions the protrusions and positions of the magnetic poles.

Abstract: Torque sensor has: magnetic member; first yoke member having (a) first nail portions arranged concentrically to face the magnetic member in radial direction and (b) first ring portion; second yoke member having (c) second nail portions arranged concentrically so that the first and second nail portions are circumferentially alternately arranged and the second nail portions face the magnetic member in radial direction and (d) second ring portion; first magnetic flux concentration ring provided between the first and second ring portions; second magnetic flux concentration ring provided between the second ring portion and the first magnetic flux concentration ring; and magnetic sensor. The first and second magnetic flux concentration rings and the first and second ring portions are arranged in layers in radial direction. A part or all of axial direction area of the first and second magnetic flux concentration rings is surrounded and shielded by the second ring portion.

Abstract: Torque sensor detects torque of steering shaft formed by first and second shafts which are connected through torsion bar. Torque sensor has: a magnetic member provided at the first shaft and having magnetic poles alternately arranged in circumferential direction concentrically with rotation axis; a first yoke member provided at the second shaft and having (a) first nail portions arranged concentrically with the rotation axis and facing the magnetic member in radial direction and (b) a first ring portion; a second yoke member provided at the second shaft and having (c) second nail portions arranged concentrically with the rotation axis so that the first and second nail portions are alternately arranged in the circumferential direction and the second nail portions face the magnetic member in the radial direction and (d) a second ring portion arranged to be separated from and face the first ring portion; and a magnetic sensor.

Abstract: A magnetostrictive torque sensor includes a rotation shaft, a magnetostrictive member, and a plurality of detectors. The rotation shaft is rotationally supported. The magnetostrictive member is disposed on a surface of the rotation shaft and being deformable in accordance with a magnitude of rotation torque applied to the rotation shaft to change magnetic permeability. The plurality of detectors are disposed on a periphery of the rotation shaft. Each of the detectors is configured to detect a change in magnetic permeability of the magnetostrictive member in a form of an electrical change. The detectors are configured to detect different amounts of electrical change from one another if amounts of change in deformation are same throughout the magnetostrictive member.

Abstract: A method for determining an electrical torque of an electrical machine includes determining an electrical torque in a first speed range with a first algorithm, and determining the electrical torque in a second speed range with a second algorithm which differs from the first algorithm. An upper limit of the second speed range is slightly higher than a lower limit of the first speed range. An apparatus is provided to determine the electrical torque of the electrical machine with the aforedescribed method.

Abstract: In a torque sensor that detects torque acting on a torsion bar on the basis of a magnetic flux density conducted to a magnetism collecting ring provided in a housing, the magnetism collecting ring is an annular member formed such that an axial direction end portion thereof is thinner than a central portion. The housing includes an annular groove formed to be capable of accommodating the magnetism collecting ring and provided as a recess in an inner peripheral wall of the housing so as to be deeper than a thickness of the end portion of the magnetism collecting ring, and a caulk portion provided in the inner peripheral wall to caulk the magnetism collecting ring by covering the end portion of the magnetism collecting ring that is fitted into the annular groove.

Abstract: A method for measuring torque measurement and generating a notifier, including searching for one or more wirelessly pairable load applying devices for applying a load to an object; displaying to a user those paired one or more load applying devices; responsive to selecting one of the displayed one or more load applying devices, receiving one or more of the group consisting of load measurements transmitted from the selected load applying device; and generating a notifier based on the proximity of the one or more of the group consisting of load measurements and torque measurements and a target value.

Abstract: A torque detection device includes: a torsion bar that couples a first shaft to a second shaft such that the first shaft and the second shaft are rotatable relative to each other; an annular magnet that is fixed to the first shaft; a pair of magnetic yokes that are fixed to the second shaft and that are arranged to face the magnet; and Hall ICs. Each of the magnetic yokes has a plurality of lugs arranged at equal intervals in a circumferential direction, and each lug becomes narrower toward its distal end, and has a curved profile with rounded corners when viewed from a radial direction of the corresponding magnetic yoke.

Abstract: Non-contact torque, thrust, strain, and other data sensing of a valve actuator or valve is disclosed. A sensor may include a surface acoustic wave device.

Abstract: A rotor includes a cylindrical magnet having a plurality of magnetic pole pairs. There are two types of the magnitude of magnetic force in the magnetic pole pairs, that is, a relatively large first magnetic force and a second magnetic force that is smaller than the first magnetic force. Three magnetic sensors are arranged around the rotor. A rotation angle computing device detects the peak values of output signals of the respective magnetic sensors. Then, the rotation angle computing device identifies the magnetic pole pair, sensed by the first magnetic sensor, based on a combination of the local maximum values of the three output signals.