Abstract: An embodiment of a method for a determination, section after section, of a parameter-dependent correction value approximation course includes determining a first measurement signal value with a first parameter value associated with a sensor arrangement when the first parameter value fullfils a predetermined condition or a trigger condition is fulfilled, changing the first parameter value to obtain a second parameter value, determining a second signal value with the second parameter value and determining a second partial section of the correction value approximation course for a second parameter range based on a functional connection describing the second partial section, the first parameter value, the second parameter value, the first measurement signal value, the second measurement signal value and an initial correction value.

Abstract: A magnetostrictive torque sensor includes a rotatable shaft rotatably supported by bearings, a magnetostrictive film disposed on the surface of the rotatable shaft, and a detecting coil that detects a change in a magnetic property of the magnetostrictive film. A hollow cylindrical ring is press-fitted over and fixed to the rotatable shaft near the magnetostrictive film, for example, near the right end of the magnetostrictive film.

Abstract: A system for monitoring landing gear position. An example rotation position sensor includes a hub mount that locks within a shaft of a joint, a first sensor attached to the hub mount, and a second sensor attached to the rotatably attached part that does not rotate. The hub mount includes a nut that has a partially tapered surface and a threaded cavity. The nut is secured within the shaft. The hub mount also includes a mounting unit that has a partially tapered surface that is in opposition to the partially tapered surface of the nut. A fastener secures the hub mount to the nut. In one example, the first sensor includes a magnetometer and the second sensor includes magnet(s). In another example, the first sensor includes inductor sensor(s) and the second sensor includes device(s) that causes a change in an inductance value of the inductor sensor(s) as the joint rotates.

Abstract: A sensor for measuring stresses induced by a force applied to a load-carrying member, including a layer of a magnetoelastic material formed on the load-carrying member is provided. The layer comprises a first phase with an average grain size below 100 nm and a first chemical composition, and a second phase of a distinctly different chemical composition, the first phase being divided by the second phase into regions having an average size in the range of 100-10,000 nm. A method for producing such a layer, including accelerating particles of a soft magnetic and magnetoelastic material having an average size in the range of 10-50 ?m towards the surface of the load-carrying member at a velocity of at least 300 m/s such that the average temperature of the accelerated particles is not higher than 500° C. above the melting temperature of the magnetoelastic material, but not lower than 500° C. below the melting temperature.

Abstract: The present invention relates to methods for determining the existence and location of parasitic stress-inducing forces on a substantially cylindrical rod portion defined along a first axis and when this rod is made of a magnetostrictive material. The method according to the invention is essentially characterized in that it consists in magnetizing the wall of the rod portion in a pseudo-helix 10 centered on the first axis, in applying a forced stress between the two ends of the rod portion, in measuring, along the rod portion, the magnitude of the magnetic field created by the rod portion after it has been subjected to the forced stress, these measurements being taken in a direction substantially parallel to the first axis, and from these measurements, in deducing the existence and location of the parasitic stress-inducing forces on the rod portion. The invention also relates to a device for implementing this method.

Abstract: A sensor system has a rotational angle sensor for detecting a rotational angle and a torque sensor for detecting a torque. The rotational angle sensor has a rotatable rotational angle transmitter having index elements. The torque sensor has a rotatable torque transmitter having magnets, which generate a magnetic field, and a magnetic flux unit for amplifying the magnetic field. The index elements and the magnetic flux unit are connected to one another in a rotationally fixed manner.

Abstract: A sensor includes a shaft and a magnetic sensor and an anti-aging magnetic sensor. The shaft may have at least one magnetized active region. The magnetic sensor may be configured to sense a magnetic field about the shaft, and may provide an output representative of torque applied to the shaft, shaft rotational speed and/or shaft rotational position. The anti-aging magnetic sensor may be positioned adjacent the active region to provide a reference signal output that is substantially independent of torque applied to said shaft.

Abstract: A magnestostrictive torque sensor detects rotating torque applied to a rod-shaped rotating shaft to work around the rotating shaft based on a change in magnetic characteristics of a magnetostrictive film formed on a surface the rotating shaft so as to extend around a full circumference thereof in a circumferential direction. The magnetostrictive film is formed continuously in an axial direction at a portion on the rotating shaft in the axial direction thereof. The magnetostrictive film has on the continuously formed area a first magnetostrictive film portion and a second magnetostrictive film portion having magnetic anisotropies which are opposite to each other and a third magnetostrictive film portion which is formed between the first and second magnetostrictive film portions. A first detection coil, a second detection coil and a third detection coil are provided for the first magnetostrictive film portion, the second magnetostrictive film portion and the third magnetostrictive film portion, respectively.

Abstract: Methods and apparatus are provided for determining torque in an environmentally isolated system. A drive system is coupled to the environmentally isolated system via a non-contact, magnetic coupling that has a known angular stiffness and at least two coupling sections. A relative deflection of each coupling section is optically measured, and the torque is determined based on the relative deflection and the known angular stiffness.

Abstract: Disclosed are a magnetostrictive torque sensor and an electrical power steering device, wherein a first torque sensor has: one magnetostrictive film provided on a steering shaft; a first coil and a second coil that detect changes in the magnetic characteristics of the magnetostrictive film; and a first housing that contains, at least, the steering shaft, the magnetostrictive film, the first coil, and the second coil. The first housing has a resin part, a cylindrical part made of a metal that is soft magnetic, and a flange part made of a metal that is soft magnetic. The resin part, the cylindrical part, and the flange part are formed as a unit.

Abstract: A system including a first concentrator, a second concentrator, and a magnet. The first concentrator has a first partial hub. The second concentrator has a second partial hub aligned with the first partial hub to form a bore. The magnet is situated in the bore and the first concentrator and the second concentrator guide magnetic flux from the magnet to sense movement of the magnet relative to the first concentrator and the second concentrator.

Abstract: The present invention involves a method and apparatus for canceling the effects of magnetic field noise in a torque sensor by placing three sets of magnetic field sensors around a shaft, the first set of field sensors being placed in the central region of the shaft and the second and third sets of field sensors being placed on the right side and left side of the field sensors placed at the central region, respectively. A torque-induced magnetic field is not cancelled with this arrangement of field sensors but a magnetic near field from a near field source is cancelled.

Abstract: A sensor assembly for measuring or detecting a magnetic field, torsion, or mechanical tension has a magnetic or magnetizable electrically conductive conductor having a first section and thereadjacent a second section in which a helical anisotropy is or can be generated. A dynamical helical magnetization is generated in the first conductor section a dynamic helical magnetization and is transferred to the second conductor section. A voltage in the second conductor section that is generated by the transfer of magnetization from the first conductor section is detected.

Abstract: A system and method for measuring torque on a rotating component, comprising of signal-producing components which are applied to the rotating component, and a means for obtaining the signals produced by said signal producing components, in which at least two signal producing components are applied to the rotating component with some linear separation between the two signal producing components and their corresponding devices for obtaining signals produced, such that torque applied to the rotating component will cause a change in phase between the signals received from each of the signal-producing components and thus permit the measurement of torque based on this change in phase; one embodiment of this invention comprising two magnetic rings, one at either end of a driveshaft, with sensor coils placed near to each magnetic ring such that an alternating electrical current is produced, the comparative phase between these currents permitting measurement of torque on the driveshaft.

Abstract: The present invention aims at detecting torque with a high degree of precision, by suppressing influences such as disturbance and rotation dependency.

Abstract: A sensor includes a shaft and a magnetic sensor and an anti-aging magnetic sensor. The shaft may have at least one magnetized active region. The magnetic sensor may be configured to sense a magnetic field about the shaft, and may provide an output representative of torque applied to the shaft, shaft rotational speed and/or shaft rotational position. The anti-aging magnetic sensor may be positioned adjacent the active region to provide a reference signal output that is substantially independent of torque applied to said shaft.

Abstract: A magnetostrictive measurement system having one or more encoded polarized magnetic regions disposed circumferentially about a shaft, wherein adjacent magnetic regions along a section of the shaft have opposing polarities. In one embodiment the shaft is hollow and the encodings are interiorly disposed while in another embodiment the encodings are on the exterior surface of the shaft. There are one or more sensors, such as contact sensors, disposed about the shaft wherein the sensors enable measurements of at least one of bending moments or torque sensing. The sensors can also include non-contact sensors measuring the magnetic flux densities caused by the alternating magnetic fields from the rotating shaft. A processing section is used to process the sensor measurements, wherein the sensor measurements are used to compute at least one of shaft power, torque, speed, and bending moments.

Abstract: A torque detector (16) is provided with first and second units (38, 39). The first unit (38) includes a first synthetic resin (40) formed by molding a pair of magnetic flux collector rings (34A, 34B). The second unit (39) includes a second synthetic resin (41) fixed to a magnetic shield plate (37B) containing a metal; an insertion protruding part (44) arranged on the synthetic resin (41); and magnetic sensors (35A, 35B) held by the insertion protruding part (44). The first synthetic resin (40) includes a receiving plate (38a) whereupon a base (38e) for receiving the magnetic shield plate (37B) is formed. In a status where the receiving plate (38a) exists between the magnetic shield plate (37B) and an object (30) to be attached, both the magnetic shield plate (37B) and the receiving plate (38a) are fastened to the object (30) by a pair of fixing screws (32).

Abstract: A torque detection device for a power steering which is less liable to be influenced by external factors or by a bending force exerted on a shaft. In the torque detection device, a torque is generated between an input shaft, which is turned interlockedly with a steering handle for operating the traveling direction of a vehicle, and an output shaft turned interlockedly with the input shaft so as to steer the vehicle. An assisting force is exerted on the output shaft by an assisting unit that is determined based on the detection result. The torque detection device is provided between the input shaft and the output shaft and includes a cam mechanism by which a torque generated between the input shaft and the output shaft is converted into a thrust force, and a pressure sensor for detecting the thrust force into which the torque is converted by the cam mechanism.

Abstract: A magnetostrictive torque sensor includes a single magnetostrictive film disposed on a steering shaft, and first and second coils for detecting changes in a magnetic property of the magnetostrictive film. The single magnetostrictive film includes a first anisotropic region and a second anisotropic region, having respective magnetic anisotropies inverse to each other. The first coil is disposed in confronting relation to the first anisotropic region, whereas the second coil is disposed in confronting relation to the second anisotropic region.

Abstract: A magnetoplastic and/or magnetoelastic material transduces linear motion, delivered to it by a mechanical connection, into a change of magnetic field, via twin boundary deformation. A bias magnetic field assures a net change of magnetization during the deformation, and a coil, coaxial with the magnetoplastic/elastic material, couples the magnetic field change to an electrical output. The bias magnetic field or a device that produces strain in a reverse direction resets the magnetomechanical transducer to its initial state. Microgenerators using the magnetoplastic/elastic material may be connected in series or parallel, combined with solar cells, and used to capture energy from passive motion such as random, cyclic or vibrational motion.

Abstract: A sensor includes a shaft and a magnetic sensor. The shaft may have at least one magnetized active region. The magnetic sensor may be configured to sense a magnetic field about the shaft, and may provide an output representative of torque applied to the shaft, shaft rotational speed and/or shaft rotational position.

Abstract: A magnetic torque transducer arrangement for self-compensating effects of external magnetic sources and temperature offset includes a shaft with at least one magnetized zone, at least one active magnetic field sensor and at least one passive magnetic field sensor disposed in such a way that the active field sensor is always in a position with higher magnetic field strength arising from applied torque than that of the passive sensor. Passive field sensors may also be placed on both sides of the active field sensor, or on only one side of the active field sensor. The transducer output is obtained by subtracting the output of the passive field sensors from that of the active field sensor, thus canceling out the effect of the interfering magnetic field flux and temperature offset on the torque transducer, and partially filtering out the temperature sensitivity drift and rotational dependant signal.

Abstract: A rotation sensor includes a first rotor constituted by a magnetic material and having an outer face that has first conductive layers disposed in two levels as viewed in the direction of a rotation axis and second conductive layers disposed outwardly of and between the first conductive layers, a second rotor having metal members corresponding to the first conductive layers of the first rotor, and a stationary core having a stationary core body that accommodates therein two exciting coils that are spaced from each other in the direction of the rotation axis. The second rotor is disposed between the first rotor mounted to a first shaft and the stationary core fixed to a stationary member, and is mounted to a second shaft which is rotatable relative to the first shaft.

Abstract: A magnetostrictive torque sensor that detects a torque of a rotating shaft and/or a stationary shaft by using a magnetostriction inverse effect that occurs on a shaft surface, the magnetostrictive torque sensor includes a first detection coil, a second detection coil, a first oscillation circuit, a second oscillation circuit, a first direction magnetic permeability detector, a second direction magnetic permeability detector, and a torque detector.

Abstract: A torque sensor (50) detects an input torque input into a torsion bar (51) using a magnetic force generating part (60), a rotating magnetic circuit (69), a fixed magnetic circuit (90), and a magnetic sensor (98). The rotating magnetic circuit (69) comprises a first soft magnetic member (70) and a second soft magnetic member (80), each of which comprises a magnetic ring (73, 83), a magnetic tip (71, 81) facing the magnetic force generating part (60), and a magnetic column (72, 82) connecting the tip (71, 81) and the ring (73, 83). By disposing the first soft magnetic member (70) and the second soft magnetic ring (80) so as to face each other, the soft magnetic rings (70, 80) are formed in an identical shape that can be manufactured by press-working a plate material, thereby realizing a compact and lightweight torque sensor (50).

Abstract: A wireless-enabled tightening system for fasteners is disclosed. The system includes a visual designator configured to project an indicator onto a workpiece. The system also includes a torque wrench comprising a wireless transmitter and a means for identifying whether the correct torque has been applied to a fastener on the workpiece and configured to provide a feedback for a user. The system also includes a camera configured to capture an image of the workpiece when an appropriate amount of torque has been applied to the fastener. The system further includes a microprocessor for determining sequence of the fastener and identifying the tightened fastener.

Abstract: A sensor for measuring stresses induced by a force applied to a load-carrying member, including a layer of a magnetoelastic material formed on the load-carrying member is provided. The layer comprises a first phase with an average grain size below 100 nm and a first chemical composition, and a second phase of a distinctly different chemical composition, the first phase being divided by the second phase into regions having an average size in the range of 100-10,000 nm. A method for producing such a layer, including accelerating particles of a soft magnetic and magnetoelastic material having an average size in the range of 10-50 ?m towards the surface of the load-carrying member at a velocity of at least 300 m/s such that the average temperature of the accelerated particles is not higher than 500° C. above the melting temperature of the magnetoelastic material, but not lower than 500° C. below the melting temperature.

Abstract: An improved magnetic torque transducer involves a method and apparatus for compensating effects of uniform and/or non-uniform magnetic sources by placing three sets of magnetic field sensors around a shaft with at least one magnetized zone. The set of primary magnetic field sensor or sensors is placed proximate to the magnetized zone, both the second and third sets of secondary magnetic field sensors being placed by pre-determined distances to the primary set of magnetic field sensor or sensors, so that primary field sensors always in a position with higher magnetic field strength arise from applied torque than that of secondary sensors. And a method is developed to use the second and third signals from secondary sensors to adjust the primary signal to compensating for the effects of the uniform and/or non-uniform ambient magnetic field sources.

Abstract: A plating apparatus includes a plating tank for storing a plating liquid, and applies a magnetic alloy plating to a shaft-shaped member immersed in the plating liquid by using the shaft-shaped member as a cathode. The plating apparatus further includes a rotable member configured to rotate the shaft-shaped member as a rotary shaft; annular shielding tools mounted on the outer peripheral surface of the shaft-shaped member; a plating liquid discharge nozzle including plating liquid discharge ports which are provided to face the shaft-shaped member so as to avoid the shielding tools; and an anode provided around the shaft-shaped member and the plating liquid discharge nozzle.

Abstract: A measurement arrangement for measuring a deflection of a wind turbine rotor blade is provided. The measurement arrangement includes a magnetostrictive sensor, which includes a first sensor part and a second sensor part, a first support structure, which is adapted to be mounted to a first portion of the rotor, wherein the first sensor part is mounted to the first support structure, and a second support structure, which may be mounted to a second portion of the rotor, wherein the second sensor part is mounted to the second support structure and wherein either or both the first portion and the second portion is a portion of the blade. The magnetostrictive sensor measures the relative spatial position between the first sensor part and the second sensor part. A method for measuring a blade deflection and a wind turbine rotor which includes the described blade deflection measurement arrangement are also provided.

Abstract: An EMI shielded sensing system is for measuring parameters associated with a rotating device having a rotating shaft. The system includes a rotating unit mechanically coupled to the rotating shaft. The rotating unit includes a sensor that provides a sensing signal that is coupled to a first antenna. A stationary unit includes a second antenna. The stationary unit and rotating unit are in wireless communication via a wireless link, and the stationary unit provides RF energy to power the rotating unit over the wireless link. The rotating unit sends the sensing output to the stationary unit over the wireless link. A multi-metal shroud for EMI shielding is positioned around the rotating unit and stationary unit. The shroud includes a ferromagnetic layer and a non-ferromagnetic layer.

Abstract: A torque sensor (50) comprises a magnetic collecting ring (91, 92) fitted into an annular groove (31, 32) formed on the inner periphery (38) of a housing (30). By providing a staking part (33, 34) on the inner periphery (38) of the housing (30) in the vicinity of the annular groove (31, 32) using a staking device (100), the magnetic collecting ring (91, 92) can be secured in the annular groove (31, 32) through a simple process.

Abstract: A load sensor is provided comprising a magnetostrictive material and a wire. The magnetostrictive material may comprise an aperture, a first face, a second face, a thickness, and a first dado. The wire is disposed at least partially in the first dado, wherein the first dado at least partially transverses at least one of the first face and the second face, wherein the wire at least partially transverses the first face and the second face. The load sensor may also comprise a magnetostrictive material comprising an aperture, a first face, a second face, a thickness, and a first channel, and a wire disposed at least partially in the first channel, wherein the first channel at least partially transverses at least one of the first face and the second face, wherein the wire at least partially transverses the first face and the second face.

Abstract: A magnetostrictive torque sensor comprising: a magnetostrictive film provided on a ferromagnetic shaft; a bias magnetization device which applies a bias magnetic field to the shaft to magnetize the shaft; and a detection device which detects a change in magnetism of the magnetostrictive film, wherein: a torque acting on the shaft calculated based on the detection results of the detection device; and the bias magnetization device applies a bias magnetic field to the shaft at a predetermined timing.

Abstract: A vehicle power steering device 1 comprises an input shaft 11, a torque sensor 2 that magnetically detects an input torque input into the input shaft 11, and a position sensor 5 that detects a reference rotation position of the input shaft 11. The position sensor 5 comprises a magnet 52, a first magnetic path forming member 67, 68, 69 that forms a first magnetic loop M for the magnet 52 in the reference rotation position of the input shaft 11, and a magnetic sensing element 56 disposed in the first magnetic loop M. By providing the position sensor 5 with a second magnetic path forming member 67 that forms a second magnetic loop N for the magnet 52 in any rotation position of the input shaft 11 other than the reference rotation position, magnetic flux from the magnet 52 is prevented from leaking to the torque sensor 2.

Abstract: Methods and systems for monitoring rotating shaft shafts and couplings in an aircraft propulsion system is described. The measurement system/method provides for accurate and precise monitoring of a rotating shaft flexible coupling in a fixed wing aircraft vehicle propulsion system. The measuring system/method provides for a high reliability short take off vertical landing fixed wing aircraft in which the vertical propulsion dynamically rotating drive shaft system and couplings are monitored in real time. The vehicular shaft coupling misalignment measuring system utilizes multiple positional sensors to provide highly reliable and precise determination of the dynamic characteristics of the rotating sensor target components of the propulsion system drive shaft. The relative position of the sensors is rigidly fixed externally from the rotating targets with a structural frame.

Abstract: A sensor includes a shaft and a magnetic sensor. The shaft may have at least one magnetized active region. The magnetic sensor may be configured to sense a magnetic field about the shaft, and may provide an output representative of torque applied to the shaft, shaft rotational speed and shaft rotational position.

Abstract: A magnetostrictive torque sensor includes first and second magnetostrictive films mounted on a pinion shaft and having different magnetic anisotropic properties, a first detecting coil disposed in facing relation to the first magnetostrictive film, a second detecting coil disposed in facing relation to the second magnetostrictive film, a transistor, and a detector for detecting a torque applied to the pinion shaft based on a first detected signal representative of a potential at the junction between the first detecting coil and the second detecting coil.

Abstract: A torque sensor includes a first shaft, a second shaft that is coaxially linked to the first shaft, a cylindrical magnet that rotates integrally with the first shaft, a pair of magnetic yokes that rotate integrally with the second shaft, and three magnetic sensors that respectively detect a change in magnetic flux of the magnetic yokes for calculating torque applied to the first and second shafts. Output characteristics of the three magnetic sensors are different from each other.

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 magnetostrictive torque sensor includes a rotatable shaft rotatably supported by bearings, a magnetostrictive film disposed on the surface of the rotatable shaft, and a detecting coil that detects a change in a magnetic property of the magnetostrictive film. A hollow cylindrical ring is press-fitted over and fixed to the rotatable shaft near the magnetostrictive film, for example, near the right end of the magnetostrictive film.

Abstract: A change in a magnetic resistance generated between a plurality of windows of a cylindrical member formed by a nonmagnetic material and a torsion bar is regarded to be a change in inductances of detecting coils to detect a steering torque. Coil yokes accommodating the detecting coils therein are disposed coaxially on an outer periphery of the cylindrical member and L-shaped bent tip portions of output terminals of the detecting coils are inserted into a hole of a circuit board of a control module. Terminal holding portions are provided on an inside of a moving track so that an interference with other components can be prevented. The circuit board of the control module is disposed perpendicularly to a direction of shaft centers of an input and output shafts. An output terminal of a detecting coil has a tip portion bent to take an L shape and formed perpendicularly to the hole of the circuit board. Therefore, the detecting coil and the control module can be directly connected.

Abstract: A torque sensor is configured so that a multi-pole permanent magnet is fixed to one of a first shaft and a second shaft linked via a torsion bar, a first rotating yoke and a second rotating yoke each having provided at equal intervals in the peripheral direction a plurality of claw portions facing the permanent magnet are fixed to the other of the first shaft and second shaft, and a magnetism detection element is disposed between a first magnetism-collecting yoke and a second magnetism-collecting yoke individually facing the first and second rotating yokes. The first and second rotating yokes are formed into identical shapes, and the claw portions provided respectively on the rotating yokes are alternatingly disposed in the peripheral direction within the same plane perpendicular to the axes of the first shaft and second shaft. Accordingly, it is possible to reduce a cost by having fewer types of parts.

Abstract: This magnetostrictive torque sensor includes: a shaft made of a magnetized material; a magnetostrictive portion provided on the shaft at a position distanced for a predetermined length from an end of the shaft; a detection coil that is arranged so as to face the magnetostrictive portion, and detects a change in a magnetic characteristic of the magnetostrictive portion; and a plating made of an nonmagnetic material, that is provided on the end of the shaft.

Abstract: An improved magnetic torque transducer arrangement for self-compensating effects of external magnetic sources and temperature offset comprises a shaft with at least one magnetized zone, at least one active magnetic field sensor and at least one passive magnetic field sensor disposed in such a way that active field sensor always in a position with higher magnetic field strength arise from applied torque than that of passive sensor. Passive field sensors may also be placed in both sides of the active field sensor, or on one side of active field sensor only. The transducer output is obtained by subtract the output of passive field sensors from that of active field sensor thus cancel out the effect of interfering magnetic field flux and temperature offset on the torque transducer, and partially filter out temperature sensitivity drift and rotational dependant signal.

Abstract: A torque detecting apparatus for detecting rotational torque applied to a first and a second shafts which are coaxially connected to each other by a torsion bar by using a relative angular displacement between a cylindrical magnet fixedly fitted onto the first shaft and integrally rotating with the first shaft and yoke rings surrounding an outer circumference of the first rotating member and integrally rotating with the second shaft. A facing portion is provided between the first and second shafts, and faces each other in the axial direction by a space smaller than a space between a lower end face of the first rotating member and the upper end face of the second shaft. Positioning in the axial direction of the cylindrical magnet and the yoke rings is carried out referring position where the space of the facing surface becomes zero.

Abstract: A position sensor, which can detect a steering column twist of a first magnetic rotoric structure including a plurality of radially oriented magnets and a second statoric structure including two concentric gear rings extended by radially oriented teeth. The rotoric structure is substantially disc-shaped and includes a ferromagnetic head supporting the plurality of magnets, the statoric structures are provided with interleaving teeth and the position sensor includes a third collector structure including two flow closing parts, one of which is fixed, and which define at least one air gap in which at least one magnetosensitive element is arranged.

Abstract: A torque sensor for sensing torque in a rotatable shaft. The rotatable shaft is configured to rotate within a shaft housing. The sensor housing has a first end, a second end, and at least one sensing zone. At least one target zone is disposed on the rotatable shaft and substantially opposes the at least one sensing zone. At least one bearing member is disposed between the sensor housing and the rotatable shaft for limiting relative axial movement and allowing relative rotation between the sensor housing and the rotatable shaft. A first resilient member has a first end in contact with the first end of the sensor housing and a second end in contact with an interior wall of the shaft housing. A second resilient member has a first end in contact with a retaining member and a second end in contact with the second end of the sensor housing.

Abstract: A torque sensor for sensing torque in a rotatable shaft. The rotatable shaft is configured to rotate within a shaft housing. The sensor housing has a first end, a second end, and at least one sensing zone. At least one target zone is disposed on the rotatable shaft and substantially opposes the at least one sensing zone. At least one bearing member is disposed between the sensor housing and the rotatable shaft for limiting relative axial movement and allowing relative rotation between the sensor housing and the rotatable shaft. A first resilient member has a first end in contact with the first end of the sensor housing and a second end in contact with an interior wall of the shaft housing. A second resilient member has a first end in contact with a retaining member and a second end in contact with the second end of the sensor housing.