Abstract: According to one embodiment, a sensor includes an element portion including a first element. The first element includes a first magnetic element, a first conductive member, and a first magnetic portion. The first magnetic element includes a first magnetic layer and a first opposing magnetic layer. A length of the first magnetic element along a second direction crossing a first direction from the first magnetic layer to the first opposing magnetic layer is longer than a length of the first magnetic element along a third direction crossing a plane including the first direction and the second direction. The first conductive member includes a first conductive portion and a first other conductive portion. A direction from the first other conductive portion to the first conductive portion is along the second direction. A direction from the first magnetic portion to the first magnetic element is along the second direction.

Abstract: A vehicular display apparatus is provided. The vehicular display apparatus includes a driving device installed in a housing, a display module configured to move to an inner portion or an outer portion of the housing, based on a mechanical operation of the driving device, and a controller unit configured to control the mechanical operation of the driving device. The driving device includes a gear configured to move the display module to the inner portion or the outer portion of the housing and a light emitting sensor and a light receiving sensor facing each other with the gear therebetween.

Abstract: A position-torque sensor system includes two angle sensors configured to detect a rotational movement. Each of the two angle sensors includes a rotor and a stator. The rotor is rotatable in response to the rotational movement to provide a rotor rotational movement and is rotatable relative to the stator. The stator includes an excitation coil and a set of receiving coils that generate output signals indicative of the rotor rotational movement. The sets of receiving coils of the stators of the two angle sensors are structurally same and the rotors of the two angle sensors are structurally the same.

Abstract: Variable reluctance (VR) resolvers applicable to even or odd speed are provided. In an N-phase VR resolver, 2N coil-poles are evenly distributed around the stator, N being odd integer greater than or equal to three. Primary coils are wound with the same number of turns, but their winding polarities alternate across the coil-poles. The number of turns and winding polarities for sine and cosine signal sensing coils are determined by sine and cosine synthesis coefficients of N-phase zero-force transform. The coil turns ratios between sine and cosine signal sensing coils relative to the primary coil are dictated by absolute values of the coefficients, while the winding polarities are determined by signs of the coefficients. In odd-speed VR resolvers, winding polarities of pair of sensing coils symmetrically located 180 degrees apart must be identical, whereas in even-speed VR resolvers, these winding polarities must be opposite.

Abstract: A bearing seal includes a seal case, a sleeve, and a thrust bumper that is disposed between the seal case and the sleeve and that is composed of a material that is at least 90% polytetrafluoroethylene by weight. The thrust bumper has an initial axial thickness that defines a spacing between the seal case and the sleeve when the seal case and the sleeve are compressed together during assembly of the bearing seal. The thrust bumper has a modified axial thickness less than the initial axial thickness after a break-in phase of the bearing seal.

Abstract: A high-precision multi-pole magnetoelectric encoder includes a mounting seat, a rotating shaft, a single-pole magnet ring, a single-pole signal processing board, a shielding shell, an n-pole magnet ring, an n-pole signal processing board, a housing, a conductive rubber pad, an aviation plug, bearings, copper columns, Hall components, and assembly screws. The magnetoelectric encoder improves the environmental adaptability and replaceability of the high-precision multi-pole magnetoelectric encoder by redesigning the structure of the multi-pole encoder. It eliminates errors caused by changes in the position of magnets and Hall sensors during the replacement process, reduces interference caused by the multi-pole magnet encircling the single-pole magnet, enhances resistance to electromagnetic interference, thereby increasing the detection accuracy of the magnetoelectric encoder, and improves the performance and competitiveness of the product.

Abstract: Magnetic-based electronic valve readers for determining a location and orientation of magnets coupled to implantable medical devices to determine a setting of the device (e.g., setting of a fluid flow control valve of the medical device). The electronic valve readers include an orientation sensing mechanism that is provided and configured to enable the electronic valve reader to: 1) allow for internal offset calculation of an orientation change of the electronic valve reader during a reading process; and/or 2) during the reading process, provide an indication or warning to the clinician that the orientation of the electronic valve reader has changed to an extent at or exceeding a predetermined angular acceptance threshold or window. Systems including the disclosed electronic valve readers and methods of reading a setting of the device are also disclosed.

Abstract: A magnet holder is used in a rotational angle sensing device and is shaped in a tubular form while the magnet holder is configured to hold a magnet opposed to a magnetic sensor and is also configured to be securely press-fitted to a rotatable body. The magnet holder includes: a magnet holding portion that is located at one side of the magnet holder in an axial direction; a press-fitting fixation portion that is located at another side of the magnet holder in the axial direction; and a connecting portion that connects between the magnet holding portion and the press-fitting fixation portion. An outer diameter of the press-fitting fixation portion is different from an outer diameter of the magnet holding portion, and a wall thickness of the press-fitting fixation portion is different from a wall thickness of the magnet holding portion.

Abstract: A rotary angle measuring arrangement includes a shaft, and a rotary angle measuring system which detects a rotary shaft movement. The rotary angle measuring system includes an excitation unit connected to the shaft which generates a magnetic field, a magnetic field sensor, a PCB arrangement, and an evaluation electronics arranged on the PCB arrangement and electrically connected to the magnetic field sensor. The PCB arrangement includes a first PCB section arranged perpendicular to a longitudinal axis of the shaft, and a second PCB section angled with respect to the first PCB section and electrically connected thereto. The magnetic field sensor is arranged on the first PCB section. The magnetic field is detectable via the magnetic field sensor. A parallel projection of the second PCB section onto a longitudinal plane parallel to the longitudinal axis and a parallel projection of the excitation unit onto the longitudinal plane at least partially overlap.

Abstract: An absolute encoder includes a spindle gear fixed to a motor shaft, a permanent magnet provided on the spindle gear, and a first driven gear having a center axis perpendicular to a center axis of a worm gear portion, and engaging the worm gear portion. The absolute encoder includes a second driving gear provided coaxially with the first driven gear and rotating according to a rotation of the first driven gear, and a second driven gear having a center axis perpendicular to the center axis of the first driven gear, and engaging the second driven gear. The spindle gear includes a magnet holder which is fit onto a tip end of the motor shaft, coaxially with the motor shaft, and a resin gear portion provided with the worm gear portion on an outer side in a radial direction.

Abstract: A magnetic detection device includes a first magnetic sensor, a second magnetic sensor, and a resin body. The first magnetic sensor includes a first sealing body and first terminals. The second magnetic sensor includes a second sealing body and second terminals. The resin body includes a resin-body main body, first wiring lines, and second wiring lines. Each of the first wiring lines includes a first overlapping portion overlapping with corresponding one of the first terminals. As viewed in a normal direction of each of the first terminals, the first overlapping portion is arranged at a position shifted from all of the second terminals and the second wiring lines. Each of the first wiring lines is welded to corresponding one of the first terminals at the first overlapping portion.

Abstract: A very high resolution sensor for detecting an angular rotation of a rotating target, the sensor including a first pair of Hall effect sensors and a second pair of Hall effect sensors. A first magnetic flux density differential of the rotating target is generated from the first pair of Hall effect sensors and a second magnetic flux density differential of the rotating target is generated from the second pair of Hall effect sensors. A pulse corresponding to an amount of angular rotation of the rotating target is output based on the second magnetic flux density differential reaching the first magnetic flux density differential.

Abstract: A method for mounting a sensor bearing unit providing a bearing and an impulse ring provided with a target holder and with a target mounted on an axial portion of the target holder. The method including measuring an eccentricity E1 between the target and the axial portion of the target holder, measuring an eccentricity E2 between a groove made in the bore of an inner ring of the bearing and the bore, introducing the target holder inside the groove, turning the target holder inside the groove to an angular position in which the eccentricity Etotal between the target and the bore of the inner ring is less than or equal to a predetermined value which is lower than the sum of the eccentricities E1 and E2, and securing the target holder inside the groove of the inner ring at the angular position.

Abstract: To correct an error based on a position of a main spindle. An absolute encoder includes a magnet as a permanent magnet provided at a leading end side of a first worm gear part, an angle sensor as an angle sensor configured to detect a rotation angle of the first worm gear part corresponding to a change in a magnetic flux generated from the magnet, a microcomputer configured to output angle position information of a first driving gear in a stopped state, wherein the microcomputer outputs angle error information of the first driving gear corresponding to the angle position information.

Abstract: A signal processing method according to the present disclosure is for use in a signal processing system including a first magnetic detection unit, a second magnetic detection unit, and a processing unit. The signal processing method includes an angle calculating step and a failure diagnosis step. The angle calculating step includes transforming, by using an inverse trigonometric function, a sine signal, a cosine signal, and a tangent signal into a first angle signal, a second angle signal, and a third angle signal, respectively. The failure diagnosis step includes making a failure diagnosis of the first magnetic detection unit and the second magnetic detection unit by comparing with each other two or more pieces of angle information selected from first angle information, second angle information, and third angle information.

Abstract: A torque sensor unit may include a ring magnet that is connectable to a first partial shaft and is concentric with a longitudinal axis. Two first magnetic flux conductors are connectable to a second partial shaft, are arranged in a ring magnet magnetic field, and conduct magnetic fluxes. A spatially fixed sensor unit may have two second magnetic flux conductors and a magnetic sensor on a printed circuit board, all of which are receivable in a housing. The sensor unit can detect a change in a rotation angle between the partial shafts by measuring magnetic flux density between the first magnetic flux conductors. A second housing surrounds the ring magnet, the first magnetic flux conductors, and the sensor unit. A magnetic shield surrounds the sensor unit at least partially circumferentially relative to the longitudinal axis and is arranged between a housing cover closing the second housing and the second housing.

Abstract: Embodiments presented provide for a system installable on a vehicle chassis that compensates for wheels and tires that vary from original manufacturer equipment to allow on-board safety systems to correctly ascertain and maintain proper vehicle dynamics.

Abstract: A bearing assembly includes a bearing unit configured to support a rotatable component relative to a stationary component which may be a bearing carrier, the bearing unit including a stationary bearing ring and a rotatable bearing ring. The rotatable bearing ring is connectable to the rotatable component and the stationary bearing ring is connectable to the bearing carrier such that they are rotationally fixed. At least part of the bearing unit is not covered by the bearing carrier.

Abstract: A method for detecting a phase shift in an output signal of an inductive position sensor by calculating the phase spectrum of the position signal based on a Fast Fourier Transformation of the position signal and comparing the calculated phase spectrums over time to detect changes in the phase spectrums.

Abstract: Embodiments of the disclosure provide magnetic sensing systems and methods for a galvanometer scanner configured to rotate within a predetermined angular range. An exemplary magnetic sensing system includes a disc permanent magnet configured to provide a magnetic field. The magnetic sensing system further includes a Hall sensor configured to generate a voltage proportional to the strength of the magnetic field as the Hall sensor and the disc permanent magnet move relatively to each other when the galvanometer scanner rotates. One of the disc permanent magnet and the Hall sensor locates on and rotates with the galvanometer scanner and the other locates off the galvanometer scanner. The magnetic sensing system also includes at least one controller configured to determine a rotation angle of the galvanometer scanner based on the generated voltage by the Hall Sensor.

Abstract: A magnetic encoder is provided with a first member including a first wall part that has formed therein an insertion through-hole through which a rotary body is passed, and a second member including a second wall part. A permanent magnet and a magnetic sensor for detecting a change in the magnetic field formed by the permanent magnet are disposed between the first wall part and the second wall part. In this configuration, the first member and the second member are composed of a soft steel that contains at most 3.0 wt % of carbon.

Abstract: A magnetic field generator generates a detection-target magnetic field related to an angle to be detected. An angle sensor includes a first and a second magnetic sensor and a processor. The first magnetic sensor detects, at a first detection position, a first applied magnetic field including the detection-target magnetic field, and generates first detection information having a correspondence with the angle to be detected. The second magnetic sensor detects, at a second detection position, a second applied magnetic field including the detection-target magnetic field, and generates second detection information having a correspondence with the angle to be detected. The processor generates an angle detection value by performing arithmetic processing using the first and second detection information. The ratio of a strength of the detection-target magnetic field at the second detection position to a strength of the detection-target magnetic field at the first detection position is 1.65 or more.

Abstract: A resolver includes a sine coil and a cosine coil that transmit AC signals having phases of the electrical angle different from each other by 90 degrees in one of a sheet-like excitation coil and a sheet-like detection coil disposed at a rotor or a stator, and a counter coil or a conductor disposed to face the sine coil and the cosine coil in the other of the excitation coil and the detection coil. In addition, an area (S) of a portion where each of the sine coil and the cosine coil and the counter coil or the conductor overlap each other when viewed in the axial direction of the resolver changes into a sinusoidal shape as the rotor rotates.

Abstract: An operation processing apparatus that calculates a rotation angle based on a first output signal and a second output signal, which differ in signal frequency from each other, is provided with a first cross-coupled operation part that performs a first cross-coupled operation and a second cross-coupled operation part that performs a second cross-coupled operation based on the first and second output signals. A first Lissajous curve generation part generates a first Lissajous curve based on the result of operation by the first cross-coupled operation part, and a second Lissajous curve generation part generates a second Lissajous curve based on the result of operation by the second cross-coupled operation part. A rotation angle computing part calculates the rotation angle based on the first Lissajous curve and the second Lissajous curve.

Abstract: A rotation angle sensing device is provided, which comprises (i) a magnetic field source that is capable of being mechanically coupled to a rotatable shaft, wherein the shaft is rotatable around a rotation axis, wherein the magnetic field source provides a magnetization which is substantially parallel to the rotation axis and not rotationally symmetric to the rotation axis, wherein the magnet field source comprises or is a permanent magnet; and (ii) at least two magnetic field sensor elements arranged to detect the magnetic field of the magnetic field source, wherein the at least two magnetic field sensor elements are located out of shaft and are placed at the same radial distance from the rotation axis. Also, a method for sensing a rotational angle is suggested.

Abstract: A sensor bearing unit includes a bearing having a first ring and a second ring centered on an axis, an impulse ring secured to the first ring of the bearing, and a sensor device for detecting rotational characteristics of the impulse ring. The sensor device includes a sensor housing secured to the second ring and at least one sensor element supported by the sensor housing and configured to cooperate with the impulse ring. The sensor housing is secured to a groove, having side walls, on a cylindrical surface of the second ring of the bearing, and the groove is located on a side of the second ring radially opposite the first ring.

Abstract: According to some exemplary embodiments described herein, a door lock may include a driveshaft operatively couplable to a bolt configured to move between an extended position and a retracted position to selective secure an associated door. The door lock may also include a transmission coupled to the driveshaft, where the driveshaft includes at least one gear configured to rotate with the driveshaft. The door lock may also include a magnetic encoder coupled to the transmission and configured to measure a position of the at least one gear. The magnetic encoder may include a diametrically polarized magnet coupled to the at least one gear.

Abstract: A device has a sensor unit for detecting measurement data about a relative movement of two components that are moved relative to one another. The sensor unit includes a scale unit connected to one of the components and extending in a movement direction of the relative movement over a measuring section. The scale unit includes a structure having magnetic bodies repeating in a defined manner along the measuring section. The magnetic bodies are axially magnetized and are arrayed having identical magnetic poles along the measuring section and/or the magnetic bodies are radially magnetized and are arrayed in alternation with respect to their magnetic poles along the measuring section. The sensor unit includes a pre-tensioning unit which fixes the arrayed magnetic bodies using a pre-tensioning force.

Abstract: A rotation angle detection device includes a correction-object driven gear that is a driven gear meshing with a main driving gear, a first sensor that is configured to generate an electrical signal based on rotation of the correction-object driven gear, and an electronic control unit that computes a driven-side rotation angle based on the electrical signal. The electronic control unit is configured to store a correction angle used to correct the driven-side rotation angle when computing the driven-side rotation angle. The correction angle is a predetermined deviation in a predetermined angle domain obtained as an average value in which deviations of the number equal to the integer and corresponding to a same relative rotation angle is averaged, so as to be deviation in an angle domain of 0 to 360 degrees.

Abstract: A method of processing information of a rotating wheel includes measuring angular velocity of a rotating wheel with a gyroscopic sensor, determining an instantaneous position of the rotating wheel with an accelerometer, and determining the angular positions of the rotating wheel based on the measured angular velocity and the instantaneous position of the rotating wheel. The gyroscopic sensor and the accelerometer are mounted on the rotating wheel.

Abstract: A portable electronic device is provided. The portable electronic device includes a main body and an accessory. The main body includes a display region, a non-display region, and a plurality of magnetic sensors. The magnetic sensors are disposed on the non-display region along a path. The accessory is movably disposed on the non-display region and includes a magnetic element. When the accessory moves on the non-display region, the accessory drives the magnetic element moving along the path.

Abstract: A position sensor comprises at least one magneto-sensitive element, a current source that is coupled to the at least one magneto-sensitive element and is configured to supply a source current to the at least one magneto-sensitive element, an analog-to-digital converter having an input coupled to the at least one magneto-sensitive element, a position calculation unit that is coupled to an output of the analog-to-digital converter and comprises a first output for providing a position signal, and a diagnostic unit that comprises an output coupled to the current source and is configured to provide a stimulus signal as a function of a stimulus pattern at the output of the diagnostic unit.

Abstract: An inductive angle measuring device includes a scanning element and a scale element having scale tracks. First and third scale tracks have an equal first number of scale structures, and a second scale track has a different number of scale structures. The scale tracks are arranged circumferentially and concentrically about an axis, such that the first scale track is located radially inwardly, the second scale track is located radially between the first scale track and the third scale track, and the third scale track is located radially outwardly. The scanning element includes receiver conductors by which the signals having angle-related signal periods can be generated. The first signal period is equal to the third signal period. An overall signal can be generated from the first signal and the third signal and can be combined with the second signal for determining absolute angle position information.

Abstract: An encoder device including a position detection unit for detecting position information of a moving part; a magnet having a plurality of polarities along a moving direction of the moving part; and an electric signal generation unit for generating an electric signal, based on a magnetic characteristic of a magnetosensitive part, the electric signal generation unit having the magnetosensitive part whose magnetic characteristic is changed by a change in magnetic field associated with relative movement to the magnet, wherein the magnetosensitive part is disposed so that the magnetosensitive part is spaced apart from a side surface of the magnet in a direction orthogonal to the moving direction and a length direction of the magnetosensitive part is orthogonal to tangential directions of at least some of magnetic field lines of the magnet.

Abstract: A method of position estimation including: a signal detection step in which N (where N is an integer of 3 or more) sensors each detect a magnetic field which is in accordance with a position of a mover and output a detection signal as an electrical signal, the detection signals being displaced in phase by an angle obtained by dividing 360 degrees by N; a crossing detection step in which a crossing detection section sequentially detects a crossing at which each detection signal having been output through the signal detection step crosses another; a subdivision detection step in which a subdivision detection section detects a portion of the detection signal that connects from a crossing to another crossing which is adjacent to that crossing, as one or more subdivision signals; and a line segment joining step in which a line segment joining section sequentially joins the subdivision signals and estimates the position of the mover based on the plural subdivision signals having been joined, to generate an estimate

Abstract: Even using the redundant system resolver in which the magnetic interference between systems occurs, to provide an angle detection apparatus which can reduces the influence of the magnetic interference and can calculate the rotational angle with good accuracy, without performing synchronous control between systems in real time. An angle detection apparatus is provided with a resolver which has the first system windings and the second system windings in which magnetic interference occurs between systems; a first system removal processing unit that performs a second cycle component removal processing which removes component of the second cycle of the second system, to detection values of the first system winding output signals; and a first system angle calculation unit that calculates a first angle of rotor, based on the detection values of the first system winding output signals after the second cycle component removal processing.

Abstract: A sensor bearing unit includes a bearing having a first ring and a second ring centered on an axis, an impulse ring secured to the first ring and a sensor device secured to the second ring for detecting rotational parameters of the impulse ring. The impulse ring is secured into a groove formed on a cylindrical surface of the first ring which is located radially on a side of the first ring opposite the second ring.

Abstract: Methods and systems for measuring an axial position of a rotating component of an engine are described herein. The method comprises obtaining a signal from a sensor coupled to the rotating component, the rotating component having a plurality of position markers distributed about a surface thereof, the position markers having an axially varying characteristic configured to cause a change in a varying parameter of the signal as a function of the axial position of the rotating component. Based on the signal, the method comprises determining a rotational speed of the rotating component from the signal, determining the varying parameter of the signal, and finding the axial position of the rotating component based on a known relationship between the axial position, the rotational speed, and the varying parameter of the signal.

Abstract: A rotation detection device includes: a detector arranged with a gap to a rotating body in which rotation position information is periodically provided at regular intervals, and detecting a magnetic change as a rotation position of the rotating body; and a signal processor acquiring the rotation position information. The detector has first and second magnetic elements arranged with an interval of a/2 in a rotation direction. Each regular interval is defined as a. The first magnetic element outputs a first signal having a period corresponding to the regular intervals. The second magnetic element outputs a second signal having an opposite phase to the first signal and the period. The signal processor acquires a differential signal between the first and second signals as the rotation position information.

Abstract: A sensing apparatus includes a first sensor unit including a first hall sensor and a second hall sensor, wherein the first hall sensor outputs two first output values having different phases from each other, and the second hall sensor outputs two second output values having different phases from each other; a second sensor unit outputs a third position detection value of a rotor; and a control unit that compares a first position detection value of the rotor, which is on the basis of the first output values, with a second position detection value of the rotor, which is on the basis of the second output values, and compares at least one of the first position detection value of the rotor and the second position detection value of the rotor, with the third position detection value of the rotor outputted from the second sensor unit.

Abstract: A stator has a core, an insulating member that covers the core, windings that are wound around the insulating member, and conductive members that supply drive power to the windings. The conductive member has a joining part that contacts a lower surface of the insulating member, an insertion part that rises axially upward from one end of the joining part, and a board connection part that descends axially downward from the other end of the joining part. The insertion part penetrates through the insulating member and protrudes at the top of the stator, where it is connected to a coil end. The board connection part is fixed, by a method such as press-fitting, to a circuit board on which a Hall element or the like is mounted.

Abstract: An apparatus for determining an item of position information relating to a position of a magnetic field transducer relative to a position sensor. The position sensor is designed to generate at least one periodic measurement signal when the magnetic field transducer moves relative to the position sensor. A processing unit of the apparatus is designed to determine the position information based on a respective measurement signal value of a respective periodic measurement signal using a calibration function assigned to the respective periodic measurement signal. The assigned calibration function represents the respective periodic measurement signal using a Fourier series having a respective plurality of Fourier coefficients which differ from zero and are of an order greater than zero. The processing unit is designed to at least approximately solve the assigned calibration function for the respective measurement signal value in order to determine the position information.

Abstract: A method is disclosed for producing an angled plug-in connector, which has an insert-molded, prefabricated busbar stack that has at least two busbars which are next to one another, are spaced apart by an insulating gap, and are made of an electrically conductive planar material. Each of the busbars includes a starting region which is in a reference plane and oriented in a reference direction, an end region which is bent out of the reference plane about a creasing angle and oriented in a transverse direction, a curved transition region from the reference direction into the transverse direction, and a bending region oriented along a bending line. The bending line is oriented, with respect to the reference direction, at a bending line angle, and the busbar stack is insert moulded between the starting region and the end region having a housing made of an electrically non-conductive plastics material.

Abstract: A rotating component includes a metal plate fixed to an end portion of the metal shaft, and a resin valve gear integrally formed with the plate by insert molding. The plate is formed with a circular fitting hole that fits with the end portion of the shaft, and a positioning recess that is recessed from one side to the other side of the plate.

Abstract: A ring input device, and more particularly to pressure-sensitive input mechanisms within the ring input device that detect pressure to initiate an operation, is disclosed. Because finger rings are often small and routinely worn, electronic finger rings can be employed as unobtrusive communication devices that are readily available to communicate wirelessly with other devices capable of receiving those communications. Ring input devices according to examples of the disclosure can detect press inputs on its band to generate inputs that can then be wirelessly communicated to companion devices.

Abstract: Apparatus and associated methods relate to measuring position and displacement of a 2D surface magnet array of at least three adjacent magnetic north and south tracks with an acute angle versus its motion displacement relative to a magnetic field sensor (e.g., magnetic sensing probe). In an illustrative example, the geometry of the 2D surface magnet array may be planar with adjacent and alternating north and south pole regions. In some embodiments, the 2D surface magnet array geometry may take the form of (1) an axial cylindrical helical multipole magnet array having individually magnetized layers that are oriented in helical shape, or (2) a radial disk spiral multipole magnet array with at least three adjacent north and south tracks oriented as a spiral shape.

Abstract: A rotational position sensor arrangement having first and second sensors positioned adjacent to an axial face of a target disc. The target disc has the axial face either one wave profile or radially spaced apart first and second wave profiles, having respectively, a first plurality of segments and a second plurality of segments, with each of the segments being formed with axially offset peaks and valleys which extend along radial lines. The valleys separate the segments, and the number of the first plurality of segments is different than the number of the second plurality of segments. The first and second sensors are located at different radial distances from the axis and signal a controller with data on a field variance due to a difference in at least one of a size or location of the one wave profile or the first and second wave profiles as they pass the first and second sensors in order to determine a rotational speed and/or position.

Abstract: Disclosed is a method for operating a rotational speed sensor comprising a sensor element in a vehicle, wherein the sensor element interacts with a magnet wheel on a wheel of the vehicle and an effective parameter generated by the interaction of the magnet wheel with the sensor element is evaluated in the form of a measurand in an evaluation module and, depending on the measurand, an output variable characterizing the rotational speed of the wheel is output, wherein the sensor element is supplied via the evaluation module with a sensor voltage influencing the measurand. A sensor assembly is also disclosed.

Abstract: Methods and apparatus for linear inductive torque sensing that may include transmitting an AC magnetic field with a transmit coil toward a conductive target and receiving a field reflected by the conductive target with a receive coil, wherein the conductive target comprises first and second targets positioned with respect to each other and each shaped to linearly increase or decrease an amount of conductive area of the conductive target due to relative movement of the first and second targets which changes an amount of the field reflected by the conductive target. A signal from the receive coil can be processed to determine a relative position of the first and second targets corresponding to an amount of torque on an elongate member connected to the first and second targets. In other embodiments, a change in inductance of the transmit coil is measured to determine relative target position.

Abstract: A magnetic sensor module includes an axially polarized back-bias magnet having a body that radially extends from a magnet center axis and a bore extending along the magnet center axis. The magnet generates a radial bias magnetic field about a magnetization axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a shim polepiece mechanically coupled to an end of the axially polarized back-bias magnet. The shim polepiece includes a second bore centered on a polepiece center axis that is aligned with the magnet center axis. The second bore extends through the shim polepiece along the polepiece center axis.