Abstract: Magnetically-activated solid state switches can include a magnetic field sensor, control circuitry configured to implement a comparison or ON/OFF logic, an output switch, a rectifier, power regulator, and charge pump, as shown. A magnetically-activated solid state switch can include a sensor bias or driver block. An analog front end may be present to amplify and/or condition the output signals produced by magnetic field sensor. Terminals can accommodate a unidirectional DC input signal or a bidirectional or AC input signal. In the ON state, the solid state output switch is configured by the control circuitry to turn OFF at a periodic rate to maintain sufficient charge to allow the solid state magnetic field sensor to sense a magnetic field. In the OFF state, the low-power regulator can periodically turn on and provide power to the magnetic field sensor for taking a magnetic field measurement.

Abstract: An apparatus of sensing a speed of a wheel, capable of improving operational stability and/or reliability of a sensor, a control system using the same, and an operating method thereof, wherein the apparatus is an apparatus of sensing a rotation speed of a wheel of a vehicle, provided to be spaced from an external circumferential surface of a tonewheel mounted on the wheel, includes a housing; a magnet disposed in the housing; a magnetic sensor located adjacent to the magnet in the housing; and a coil wound around the magnet.

Abstract: There is provided a detecting apparatus including one or a plurality of magnetic coupling elements that include a plurality of coils, a positioning unit disposed near at least one coil from among the plurality of coils included in the one or plurality of magnetic coupling elements, and a detector that measures an electrical parameter related to the one or plurality of magnetic coupling elements or to a circuit that at least includes the one or plurality of magnetic coupling elements, and determines from a change in the electrical parameter whether a foreign matter capable of generating heat due to magnetic flux is present.

Abstract: A rotation speed sensor, configured to detect a rotation speed of a rotating body, is composed of a cable composed of an electric wire including a conductor wire, and a sheath provided over the electric wire, a circuit substrate mounted with an integrated circuit thereon and connected to the conductor wire being exposed from the cable, and a housing including a first housing, which is configured to hold the circuit substrate therein, and a second housing, which is configured to hold the cable therein, with the first housing being welded to the second housing, and with the second housing being welded to a surface of the sheath of the cable.

Abstract: A ferrite core coil device as a sensing element for a sensor device determining a rotational speed of a metallic rotatable object includes a coil having a first sector and a second sector and a ferrite core holding the coil. The ferrite core has a shape of a disk lacking a disk sector and defined by a contour of the disk and a chord of the disk. The chord forms a bending edge of the ferrite core. The first sector of the coil is not arranged on a bed of the ferrite core and the second sector of the coil is arranged on the bed. The first sector is bent around the bending edge at a bending angle with respect to the second sector.

Abstract: A speed measuring device for a wheel hub assembly equipped with a rolling bearing. The measuring device having an encoder wheel mounted on a rotating ring of the bearing, a mechanical support disposed between the encoder wheel and the ring to cause the encoder wheel and the ring to be angularly fixed to one another, and a mechanical lock for axially locking the encoder wheel in a seat formed by the mechanical lock together with the mechanical support. The encoder wheel is equipped with a base structure made of plastic material mounted in a seat.

Abstract: A front fork, which suspends a front wheel is a compression type and includes a pressure tank at a lower end portion thereof. The front fork includes, at the lower end portion, a caliper bracket which supports a brake caliper which constitutes a disc brake and a sensor mounting portion on which a wheel speed sensor is mounted. The caliper bracket includes a pair of an upper caliper support portion and a lower caliper support portion. In a vehicle side view, the pressure tank is disposed between the upper caliper support portion and the lower caliper support portion, and the sensor mounting portion is disposed inferior to or superior to the pressure tank.

Abstract: There is provided a sensor including a sensor element, a substrate on which the sensor element is disposed, and a casing that accommodates the substrate. The casing has a doughnut shape, and has a connecting portion for externally connecting a wire. In a doughnut-shaped internal space of the casing, the substrate is disposed, and the wire is disposed in the connecting portion from a side of the substrate far from the connecting portion. A central cylinder portion is interposed between the substrate and the wire.

Abstract: A rotation speed sensor, configured to detect a rotation speed of a rotating body, is composed of a cable composed of an electric wire including a conductor wire, and a sheath provided over the electric wire, a circuit substrate mounted with an integrated circuit thereon and connected to the conductor wire being exposed from the cable, and a housing including a first housing, which is configured to hold the circuit substrate therein, and a second housing, which is configured to hold the cable therein, with the first housing being welded to the second housing, and with the second housing being welded to a surface of the sheath of the cable.

Abstract: A latch assembly, including: at least one moveable component rotationally mounted to the latch assembly; a magnet secured to the at least one moveable component; a hall effect sensor remote from the magnet; and a metal trace operably coupled to the hall effect sensor and configured to be magnetized by the magnet as the at least one moveable component rotates.

Abstract: The present disclosure relates to hub apparatuses and associated systems. An embodiment of the hub apparatus includes a rotor assembly, a shaft, and a stator assembly. The rotor assembly includes first/second housing components and multiple magnets mounted on one or both of the first and second housing components. The stator assembly includes (1) a coil assembly positioned corresponding to the magnets; (2) a main circuit board fixedly coupled to the coil assembly; and (3) a battery assembly positioned inside the coil assembly and carried by the main circuit board.

Abstract: The systems and methods described herein include monitoring systems and methods that monitor speeds of a motor of a vehicle represented as a pulse signal indicative of a rotational position of the motor. The systems and methods include receive a pulse signal from a speed sensor coupled to a traction motor. The pulse signal is indicative of a rotational position of the traction motor. The systems and methods include analyze the pulse signal to identify per-revolution signal reoccurrences that meet designated criteria, and determine a defect based on the per-revolution signal reoccurrences that are identified. The defect is one or more of a wheel defect, a bearing defect, or a gear defect.

Abstract: A magnetic field sensor comprises a first coil configured to generate a magnetic field having a first frequency and induce a reflected magnetic field from a target. A second coil configured to generate a diagnostic magnetic field having a second frequency is included. The diagnostic magnetic field is configured not to induce a reflected magnetic field from the target that is measurable by the magnetic field sensor. At least two magnetic field sensing elements detect the reflected magnetic field and the diagnostic magnetic field and generate a signal representing the reflected magnetic field and the diagnostic magnetic field. A processing circuit is coupled to the at least two magnetic field sensing elements and configured to receive the signal, extract a diagnostic magnetic field portion of the signal representing the diagnostic magnetic field, and generate an error signal if a fault is detected.

Abstract: Sensor bearing unit providing at least two bearings stacked one relative to the other and each having an inner ring and an outer ring, the sensor bearing unit having a sleeve radially surrounding the bearings and having a radial projection in axial contact with one of the bearings, an annular flange having a radial portion in axial contact with the other bearing and an axial portion radially surrounding the sleeve and connected to the sleeve, and a wire carrier configured to support at least one wire and at least one connector, the wire carrier includes at least one fastening element mounted on the bearing.

Abstract: A path sensor includes: a sensing device; at least two sensor units assigned to the sensing device, wherein the sensing device can be displaced relative to the sensor units and has a property changing at least once from a starting value to an end value along the sensing device, which property can be detected by the sensor units; and an evaluation unit, which is designed to determine the position of the sensing device relative to the sensor units as a function of the property values detected by the sensor units. The sensing device has at least two sections following on from one another in the direction of movement, along which sections the property changes from at least the starting value to at least the end value, wherein the change has different gradients in the sections.

Abstract: Apparatus features a signal processor configured to receive signaling from a flux sensor containing information about a residual field from an electrical supply to a motor of a driven machine and a magnetic field from one or more rotating magnets placed on a rotating component of the driven machine; and determine corresponding signaling containing information about the operation of the driven machine, based upon a difference between an electrical supply frequency and a slip frequency determined from the signaling received and processed. The signal processor also provides the corresponding signaling for further processing to determine further information about the operation of the machine.

Abstract: A pedal device for a vehicle includes a pedal arm that is rotatable about a rotational axis in a pedal housing, a pedal reaction force generator for generating a pedal reaction force in a direction opposite to a direction in which an operating force of the pedal arm is applied via a pedal pad formed on the pedal arm, a friction force generator comprising a contact disposed at an end of the pedal arm proximate to the rotational axis and a contact surface formed on an inner surface of the pedal housing to be in contact with the contact of the pedal arm, and a position detection unit for detecting a position of the pedal arm. The position detection unit includes a magnet, in which two or more poles are arranged in a displacement direction and in a direction perpendicular to the displacement direction.

Abstract: There is provided a machine tool for suppressing the adverse effect of run-out of the rear end of a spindle on the rotation detection accuracy when processing a workpiece within a processing area. The machine tool includes a rotation driver, the spindle that is rotated by the rotation driver, a rotational angle detector that is provided to face a part forming the spindle in order to detect a rotational angle of the spindle, and at least two bearings that support the spindle and are arranged on a side of the processing area with respect to the rotation driver. The rotational angle detector is arranged at a position on the side of the processing area with respect to the rotation driver, the position being on the side of the processing area with respect to the bearings, on a side of the rotation driver with respect to the bearings, or between the bearings.

Abstract: An arrangement for measuring a force and/or a torque using the inverse-magnetostrictive effect as well a method for a measurement of a force and/or a torque using the inverse-magnetostrictive effect are provided. The force or the torque acts on a machine element (01) that has at least one magnetization area (04) for a magnetization and thus forms a primary sensor for the measurement using the inverse-magnetostrictive effect. The arrangement includes at least two spaced apart magnetic field sensors (06) for measuring a magnetic field (11) caused by the magnetization and also by the force or by the torque, with each of these sensors forming a secondary sensor for the measurement using the inverse-magnetostrictive effect. The arrangement further includes a measurement signal processing unit that is constructed for the signal processing of the measurement signals of the individual magnetic field sensors (06).

Abstract: An image forming apparatus has a bias controller. The bias controller varies both a charging alternating-current frequency, which is the frequency of a charging alternating-current voltage, and a developing alternating-current frequency, which is the frequency of the developing alternating-current voltage. When the region of the charging and developing alternating-current frequencies in which interference fringes appear in a developed image due to interference between the charging and developing alternating-current frequencies is taken as a variation region and the variation speeds of the charging and developing alternating-current frequencies in the variation region are taken as a first and a second variation speed respectively, the bias controller varies the charging and developing alternating-current frequencies such that one of the first and second variation speeds is a positive-number multiple of the other.

Abstract: A method and apparatus for resistive short circuit immunity for wheel speed sensor interface on braking system. In one embodiment the apparatus includes a first circuit for transmitting a first current to a wheel speed sensor, and a second circuit for receiving a second current from the wheel speed sensor. Another circuit is coupled to the first and second circuits and configured to detect and respond to a near zero resistive short between the wheel speed sensor and ground. In this embodiment the circuit is configured to detect the near zero resistive short based on a direct or indirect comparison between magnitudes of the first and second currents to a first predetermined value, and based on a direct or indirect comparison between magnitudes of the first and second currents to a second predetermined value.

Abstract: A wheel assembly including a sensor for measuring wheel movement is provided comprising: a frame member; an axle fixed to the frame member; a wheel rotatably mounted to the axle and comprising a wheel recess; a code ring located within the wheel recess for rotation with the wheel; and a sensor device coupled to the frame member and located adjacent to the code ring. The sensor device senses movement of the code ring and generates an output signal indicative of the wheel movement. A materials handling vehicle comprising the wheel assembly is also provided.

Abstract: A turbocharger according to one embodiment of this invention includes: a rotation shaft; a compressor impeller; a compressor housing; a bearing housing connected to the compressor housing and configured to define a diffuser flow path between the bearing housing and the compressor housing; a thrust plate configured to support the rotation shaft in an axial direction; an insert component configured to retain the thrust plate between the insert component and a protruding wall portion in the bearing housing; a snap ring configured to be inserted in a first circumferential groove formed in an inner peripheral wall surface of the bearing housing, to thereby fix the insert component in a state in which the insert component is pressed against the thrust plate; and a diffuser component having a diffuser surface extending along a direction orthogonal to an axis of the rotation shaft between the inner peripheral wall surface of an end portion of the bearing housing on one side thereof and an outer peripheral edge of the

Abstract: A composite exciter ring for use in a vehicle brake system includes a base layer and a cover layer that is disposed on the base layer. The base layer is made of a ceramic material that insulates the cover layer from a heat source generated during brake activation. The cover layer is made of a plastic material and that defines openings. Each opening exposes a different part of the base layer. The ceramic material includes an additive infused therein. The additive has an effect on a magnetic field.

Abstract: A sensor pin coupled to a latch is described herein. The sensor pin includes a sensor pin body including a sensor, a sensor bolt extending from the sensor pin body and having a rod cavity arranged at a non-straight angle with regard to an interface pin cavity, an actuator rod slidably positioned within the rod cavity, and an interface pin slidably positioned within the interface pin cavity and mechanically coupled to the actuator rod such that actuation of the interface pin causes axial movement of the actuator rod toward the sensor. Additionally, actuation of the sensor by the actuator rod triggers transmission of a latch state signal by the sensor.

Abstract: Disclosed is a “factor 1” and inductive sensor device including an LC resonant circuit powered by a suitable generator, an operational chain of units for acquisition by sampling and processing of the response signal, and a functional set of units for evaluating at least one temporarily set value of the processed signal and supplying detection or non-detection information. The acquisition and processing unit includes analog a unit for filtering and/or amplifying the sampled response signal, and a unit for compensating the temperature drift of the response signal by correcting the sampled signal following the digital conversion thereof, associated with or including a temperature sensor.

Abstract: A sensing part, a sensing unit, a wheel speed sensing device and a vehicle using said wheel speed sensing device. The vehicle comprises a vehicle wheel and the wheel speed sensing device. The wheel speed sensing device is mounted on the vehicle wheel for timely detecting a speed of the wheel. The sensing device comprises a magnetic-field generating unit and the sensing unit. The sensing unit comprises a fixed part and a sensing part detachably provided on the fixed part. A snapping slot and a snapping part, which can be elastically snapped with each other or released from each other, are provided between the sensing part and the fixed part. The sensing part comprises a housing and a sensing circuit board secured by the housing.

Abstract: A sensor for locating metal or magnetic objects includes a first and a second transmitting coil and one receiving coil. The receiving coil includes a first and a second receiving sub-coil. The first transmitting coil and the first receiving sub-coil are arranged in a first plane. The second transmitting coil and the second receiving sub-coil are arranged in a second plane. The first transmitting coil and the first receiving sub-coil are offset in relation to the second transmitting coil and the second receiving sub-coil with respect to a common center axis which passes vertically through the planes. The first receiving sub-coil is configured differently than the second receiving sub-coil.

Abstract: A magnetic sensor may determine information, associated with a magnet wheel, that is associated with a rotational speed of the magnet wheel or a rotational direction of the magnet wheel. The magnetic sensor may determine information, associated with the magnetic sensor, that is associated with a property of the magnetic sensor. The magnetic sensor may provide a signal including the information associated with the magnet wheel and the information associated with the magnetic sensor. The signal may be provided using a pulse width modulation technique associated with at least three signal levels and at least two signal thresholds. A period of time during which the information associated with the magnetic sensor is provided may at least partially overlap a period of time during which the information associated with the magnet wheel is provided, or may be provided without a time offset from the information associated with the magnet wheel.

Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the speed and one of the direction or a fault.

Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The frequency of the output signal indicates the speed and the direction or indicates a fault.

Abstract: A flowmeter includes a metallic body that has a flow path therein, an impeller that is rotatably supported in the flow path inside the body, a pickup coil that is configured to detect a number of rotations of the impeller, the pickup coil being disposed outside the body, a coil case that is made of metal, and accommodates the pickup coil, an amplifier circuit board that is configured to amplify a detection signal of the pickup coil, and an amplifier case that is made of resin, and accommodates the amplifier circuit board. The coil case and the amplifier case are connected via a resin case that is made of resin and includes an insulation material therein.

Abstract: In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. A duty cycle percentage of the output signal indicates the speed and the direction or indicates a fault.

Abstract: A speed measuring device for a wheel-hub unit provided with a rolling bearing, the measuring device having an encoder wheel made of magnetized elastic material and assembled on a rotating ring of the bearing; mechanical supporting means that are directly placed between the encoder wheel and the ring so that the encoder wheel and the ring are angularly constrained to each other; and mechanical locking means for axially locking the encoder wheel inside a seat defined by the mechanical locking means together with the mechanical supporting means.

Abstract: A structure of a motor which is capable of enhancing a sensing efficiency and a structural reliability is provided. Particularly, a sensing unit for a motor and a motor including the sensing unit which has a rotating shaft, a sensing plate press-fitted in a structure of passing through the rotating shaft, a sensing magnet disposed on the sensing plate, and a fixing plate coupled to a center of the rotating shaft by a coupling member and disposed in a structure of covering an exposed surface of the sensing magnet.

Abstract: There is provided a detecting apparatus including one or a plurality of magnetic coupling elements that include a plurality of coils, a positioning unit disposed near at least one coil from among the plurality of coils included in the one or plurality of magnetic coupling elements, and a detector that measures an electrical parameter related to the one or plurality of magnetic coupling elements or to a circuit that at least includes the one or plurality of magnetic coupling elements, and determines from a change in the electrical parameter whether a foreign matter capable of generating heat due to magnetic flux is present.

Abstract: An impulse ring centered on a central axis, for a sensor-bearing unit including a bearing is provided. The impulse ring includes a magnetized target that generates a magnetic fields adapted to be sensed by a sensor, and an annular target holder. The target holder provides an inner axial tubular portion adapted to be fixed to a rotatable inner ring of the bearing, an outer axial tubular portion holding the magnetized target that is positioned radially beyond an outer ring of bearing, and an intermediate portion that radially extends between the inner axial tubular portion and outer axial tubular portion. The intermediate portion provides a radial part, an inclined part and a plurality of stiffening ribs.

Abstract: Fluid flow measuring device for measuring a fluid flow, comprising a rotatable, magnetic element, wherein the rotatable, magnetic element is positioned in the fluid flow, wherein the rotation of the rotatable, magnetic element depends from the fluid flow, wherein the rotation of the rotatable, magnetic element generates a magnetic field; further comprising at least one sensing coil pair having a first sensing coil and a second sensing coil, wherein the respective sensing coils of each sensing coil pair are arranged in such a way that the magnetic field generated by the fluid flow dependent rotation of the rotatable element has a first polarity and a first phase in the region of the respective first sensing coil and a second polarity and a second phase in the region of the respective second sensing coil, wherein at least said polarities differ from each other.

Abstract: A sensing system including a first magnet having a first magnetic field. In one embodiment, the sensing system also includes a first stator configured to receive the first magnetic field and a second stator configured to receive the first magnetic field. A first collector is configured to collect the first magnetic field from the first stator, a second collector is configured to collect the first magnetic field from the second stator, and a magnetic sensing element is configured to sense the first magnetic field. The sensing system also includes a second magnet having a second magnetic field, and a third magnet having a third magnetic field. The third magnet is positioned such that the third magnetic field is symmetrical to the second magnetic field.

Abstract: Sensor devices for a rolling bearing and roller bearings including said sensors are disclosed. The sensor device may include at least one sensor configured to connect to one bearing race in a manner fixed against relative rotation. At least one signal transmitter may be configured to connect to the other of the bearing races in a manner fixed against relative rotation. The sensor device may further include an outer ring configured to be fastened on an end face of the outer race of the rolling bearing and an inner ring configured to be fastened on an end face of the inner race of the rolling bearing. The sensor and the signal transmitter may be arranged on mutually opposite lateral surfaces of the outer and inner rings.

Abstract: A magnetic field sensor for detecting motion of an object includes error detection circuiting and processing. Magnetic field sensing elements are configured to generate at least two magnetic field signals in response to a magnetic field associated with the object which signals are used by detectors to generate right and left channel signals with edges indicative of motion of the object. A direction calculation processor responsive to right and left channel signals generates a direction signal having a state indicative of a direction of motion of the object and an output signal generator generates an output signal having a pulse indicative of the direction of motion of the object in response to the direction signal. An error detection processor responsive to the output signal and to the direction signal is configured to detect an error in at least one of the direction signal and the output signal.

Abstract: Disclosed is a magnetic sensor for measuring flux density. The sensor comprises at least one tunnelling magnetoresistor, supporting circuitry and an output for outputting a signal from the tunnelling magnetoresistor. In another aspect, there is also provided a sensor probe comprising at least one magnetic sensor. A magnetic probe system is also described, comprising the probe sensor and processing circuitry. Methods of processing the output signal from the magnetic sensor are also described. In one application, the system and method allow for detection of tissue such as lymph nodes that have taken up small quantities of magnetic particles upon injection of a magnetic tracer containing the magnetic particles into a patient, and can be used to identify such tissue that could be affected by certain forms of cancer.

Abstract: A control apparatus includes, for at least two-phase signals detected from a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, a signal generator that generates a correction signal for canceling out an error component of the carrier signal, and a synthesizer that synthesizes the phase-shifted first phase signal, the phase-shifted second signal, and the correction signal for canceling out the error component, in order to create a phase-modulated signal that is the carrier signal being modulated at a rotation angle of a rotor of the resolver.

Abstract: The present disclosure relates to a method and apparatus to perform a low power activation of a system. In one embodiment, the apparatus includes a sensor element configured to output a sensor output signal corresponding to a sensed quantity to a digital difference detection circuit. The digital difference detection circuit has a digital measurement element configured to track the sensor output signal and generate a digital signal therefrom, a digital storage element configured to store previous digital signals corresponding to the sensor output signal generated over time, and a difference detector configured to detect a difference between a current digital signal and at least one of the previous digital signals. If the difference is larger than a digital reference level, the difference detector causes an activation signal generator to generate an activation signal that awakens a system from a sleep mode or a low-power mode.

Abstract: A wheel end assembly that has a spindle, a hub, a tone ring, and a seal assembly. The tone ring may be mounted to the hub and may have a tone ring opening that may extend around the spindle. The seal assembly may be disposed in the tone ring opening and may extend from the spindle to the tone ring.

Abstract: A bearing providing at least an inner ring and an outer ring adapted to concentrically rotate with respect to one another, equipped with at least one embedded device for the detection of a displacement in translation of the rings relative to each other, the detection device including a linear encoder element mounted on one of the rings, and a sensor element mounted on the other ring and opposite the encoder element.

Abstract: A bearing providing a first ring and a second ring, capable of rotating concentrically relative to one another, equipped with at least one incorporated device for detecting the movement of the rings relative to one another is provided. The detection device includes at least a coder element mounted on the first ring and at least a sensor element mounted on the second ring, facing the coder element, the coder element providing at least one linear ribbon arranged on a cylindrical surface of the first ring. The first ring of the bearing is equipped with at least one retaining strip that extends over the ribbon.

Abstract: A rotation sensor has a magnetoelectric conversion unit that converts change of magnetic flux whose direction changes periodically with rotation of a rotator into an electric signal and a processing unit that processes the electric signal. The magnetoelectric conversion unit outputs a first detection signal and a second detection signal. The processing unit has a first comparison unit that compares a detection threshold and the first detection signal and a second comparison unit that compares a reference threshold and the second detection signal. The first comparison unit changes a voltage level of the detection threshold when the first detection signal exceeds or falls below the detection threshold and then restores the voltage level of the detection threshold based on the second detection signal and the reference threshold, and the first comparison unit converts the first detection signal into a pulse signal based on the detection threshold of the same voltage level.

Abstract: A motor includes a rotating shaft, a rotor that surrounds the rotating shaft, rotates along with the rotating shaft, and includes a drive magnet, and a sensing unit that surrounds the rotating shaft, is disposed over the rotor, and detects rotation of the rotor, wherein the sensing unit includes a sensing plate that includes a plurality of holes that are formed along with an edge of the sensing plate, a sensing magnet that is mounted on the sensing plate and is disposed closer to the rotating shaft than the plurality of holes, a first sensor that is disposed over the sensing plate and detects a change in the sensing plate, and a second sensor that is disposed over the sensing magnet and detects a change in the sensing magnet.

Abstract: A cable with a sensor includes electrically insulated wires, a sheath for covering the electrically insulated wires together, a sensor, and a housing for sealing one end of the sheath, while receiving at least a portion of the sensor. The housing includes a receiving portion for receiving the at least portion of the sensor, a lead out portion for the sheath being drawn therefrom, and a curved cylinder section having a circular cross section. The curved cylinder section is provided between the receiving portion and the lead out portion, to hold the electrically insulated wires. The curved cylinder section is made of a molded resin formed in a circular cross sectional shape at right angles to a direction of extending of the electrically insulated wires. The electrically insulated wires are held in the middle of the circular cross section of the curved cylinder section.