Abstract: A magnetic field generating portion is provided to a moving unit moving together with an operating unit. Two magnets are disposed in the magnetic field generating portion with a gap between in the direction of movement. A detection unit is provided to a fixed portion. The detection unit includes a first magnetoresistive device and a second magnetoresistive device and outputs of different combinations are obtained depending which of a first detection position, a second detection position, and an intermediate detection position, the moving unit has moved to.

Abstract: It is described a magnetic field differential sensor system for measuring rotational movements of a shaft. The described magnetic field sensor system (200) comprises (a) a biasing magnet (210, 510) configured for generating a biasing magnetic field; (b) a magnetic wheel (230) having a wheel axis and a circumferential surface which comprises a regular structure of teeth (231) and gaps (232) arranged in an alternating manner, wherein (i) the magnetic wheel (230) is attachable to the shaft and (ii) the magnetic wheel (230) can be magnetized by the biasing magnetic field; and (c) a magnetic sensor arrangement (220) comprising four magnetic sensor elements (221, 222, 223, 224) being connected with each other in a Wheatstone bridge configuration. Respectively two of the magnetic sensor elements (221, 222, 223, 224) are assigned to one half bridge of the Wheatstone bridge.

Abstract: The present invention relates to a displacement sensor for contactlessly measuring a position of a magnet relative to a reference point. The displacement sensor comprises the magnet which can be displaced along a movement axis, a plurality of magnetic field sensors which are arranged in series and which are arranged parallel with the movement axis of the magnet and a calculation unit for forming a position signal which indicates the position of the magnet relative to the reference point. The plurality of magnetic field sensors which are arranged in series are arranged in such a manner that the displacement measurement ranges of adjacent magnetic field sensors overlap in an overlap range.

Abstract: A magnetic encoder has a high resolution track including a plurality of North/South pole pairs defining a plurality of pole junctions, and a reference track including a North/South pole pair defining a North/South pole junction aligned with a first pole junction of the high resolution track, and a South/North pole junction aligned with a second pole junction of the high resolution track. Only a single pole junction of the high resolution track is positioned between the first and second pole junctions of the high resolution track.

Abstract: Embodiments related to the generation of magnetic bias fields for magnetic sensing are described and depicted. In one embodiment, a sensor includes at least one magnetosensitive element, and a magnetic body with an opening, the magnetic body comprising magnetic material, the magnetic body having inclined surface sections shaped by the opening, wherein the sensor is arranged within the opening such that the magnetosensitive element is in lateral directions bounded by the inclined surface sections.

Abstract: A detecting device includes a detecting part configured to detect a change in an object to be detected so as to output a detection signal, an amplifying part configured to amplify the detection signal output from the detecting part to output a first amplification signal, a reference voltage supply part configured to supply a reference voltage to the amplifying part, the reference voltage being input to the amplifying part to be output as a second amplification signal, a switching part configured to switch a connection between the detecting part and the amplifying part or a connection between the amplifying part and the reference voltage supply part based on a control signal input thereto, and a comparing part configured to compare a predetermined amplification factor in the amplifying part, with an amplification factor obtained from the second amplification signal so as to output the comparison result as a comparison signal.

Abstract: Embodiments relate to magnetic field angle sensors, such as on-axis magnetic field angle sensors. In an embodiment, a magnetic field angle sensor comprises a magnet having an axis of rotation, and a substrate arranged in-line with the axis of rotation. A plurality, such as at least four, of magnetic field sensor elements are arranged on a surface of the substrate, spaced apart from one another in regular increments on a closed curve in an embodiment, and are sensitive to a component of a magnetic field induced by the magnet that is parallel to the surface of the substrate on which the sensor elements are arranged. Circuitry of or coupled to the sensor elements then can estimate an angular position of the magnet, such as based on the magnetic field components sensed by the sensor elements as well as positions along the closed curve where the magnetic field component vanishes in an embodiment.

Abstract: A magnetic sensor includes a non-bias structure element section that has a laminated structure in which a fixed magnetic layer, a non-magnetic material layer, a free magnetic layer, and a protection layer are laminated, and that is extended in an X1-X2 direction; and soft magnetic bodies that are arranged on the element section in a contactless manner. The soft magnetic bodies include a first section, a second section, and a third section. The second section is located on a Y2 side of the element section and the third section is located on a Y1 side thereof. The second section of one of soft magnetic bodies faces the third section of the other soft magnetic body in a Y1-Y2 direction through the element section. An electrode layer is provided on the element section which faces the joint sections of the second section and the third section in the Y1-Y2 direction.

Abstract: A magnetic medium is magnetized in the relative movement direction at a predefined pitch km and a magnetic sensor includes plural magnetoresistive elements whose electrical resistance value changes depending on a magnetic field at a place where the magnetoresistive element is disposed. A position where the magnetoresistive element is disposed is defined as a reference position and, in addition to the magnetoresistive element of this reference position, the magnetoresistive elements as harmonic reducing patterns are disposed at the following positions, with P(n) defined as the n-th prime: a position offset by ?m/(2·P(n)) from the reference position toward at least one side of the relative movement direction, wherein N?n>1 and N is a natural number satisfying N>3, and a position further offset by ?m/(2·P(L+1)) from a position offset by ?m/(2·P(L)), wherein 1<L<N.

Abstract: A sensor arrangement comprises at least one magnetic-field sensor (SM1). A signal-processing unit (PROC) is set up to determine a minimum signal (MIN) and a maximum signal (MAX) of the magnetic-field sensor (SM1) over the full scale range (FSR) of the sensor arrangement. An adjustment circuit (DSPL) is set up to generate a correction signal (COR) as a function of the minimum and maximum signals (MIN, MAX). A first combination means (ADD1) couples the first magnetic-field sensor (SM1) on the input side to the adjustment circuit (DSPL) and connects the magnetic-field sensor (SM1) on the output side to a signal output (OUT).

Abstract: A sensor arrangement comprises at least a first magnetic-field sensor (SM1) and a second magnetic-field sensor (SM2). A signal-processing unit (PROC) is set up to determine a minimum signal (MIN) and a maximum signal (MAX) of the first or second magnetic-field sensor (SM1, SM2) in the full scale range (FSR) of the sensor arrangement The first or second magnetic-field sensor (SM1, SM2) can be selected by means of a selection means (MOV) depending on the minimum and maximum signal (MIN, MAX).

Abstract: A magnetic sensor having no sensitivity differences between sensitivity axes, and an easy manufacturing method therefor are provided. The method includes a process of forming first stacked films for a magnetoresistive element on a substrate. This element has a sensitivity axis in a certain direction and includes a self-pinned ferromagnetic pinned layer in which first and second ferromagnetic films are antiferromagnetically coupled through an antiparallel coupling layer, a nonmagnetic intermediate layer, and a soft magnetic free layer. The method further includes a process of removing a region of the first stacked films from the substrate. The remaining region of the films includes at least a region to be left to form the element. The method furthermore includes a process of forming second stacked films for a magnetoresistive element, which has a sensitivity axis in a direction different from the certain direction and has the same structure, on the exposed substrate.

Abstract: The present disclosure relates to a magnetic angle sensor module having first magnetic polewheel comprising a first number of poles and a second magnetic polewheel comprising a second number of poles greater than the first number. First and second magneto-resistive sensors are located around the first polewheel at a first angular position and a second angular position, respectively. The first and second magneto-resistive sensors collectively generate sensor signals corresponding to a measured angle of the first polewheel, while the third magneto-resistive sensor generates a third sensor signal corresponding to a measured angle of the second polewheel. A signal processor receives the first and third sensor signals and operates an algorithm that determines a position within a signal curve of the second polewheel from the first sensor signal and that determines an enhanced angle from the position within the signal curve and the third sensor signal.

Abstract: The invention provides a method for reducing the noise in a signal from a torque sensor caused by near magnetic field sources.

Abstract: The present invention discloses a design and manufacturing method for a single-chip magnetic sensor bridge. The sensor bridge comprises four magnetoresistive elements. The magnetization of the pinned layer of each of the four magnetoresistive elements is set in the same direction, but the magnetization directions of the free layers of the magnetoresistive elements on adjacent arms of the bridge are set at different angles with respect to the pinned layer magnetization direction. The absolute values of the angles of the magnetization directions of the free layers of all four magnetoresistive elements are the same with respect with their pinning layers. The disclosed magnetic biasing scheme enables the integration of a push-pull Wheatstone bridge magnetic field sensor on a single chip with better performance, lower cost, and easier manufacturability than conventional magnetoresistive sensor designs.

Abstract: A magnetic position detection apparatus includes a substrate, a magnet, a bridge circuit including first through fourth magneto-electric converting elements formed on the substrate, and a detection circuit. A substrate surface is substantially perpendicular to a magnet magnetization direction. The second and third magneto-electric converting elements are, when viewed along the magnet magnetization direction, disposed to be on or in the vicinity of a straight line passing through a center point of a magnetic pole of the magnet and parallel to a straight line perpendicular to both the magnet magnetization direction and the magnetic mobile object. The first and fourth magneto-electric converting elements are disposed so that, when not opposed to the magnetic mobile object, a component of a substrate of a magnetic field to be applied thereto is substantially same as that of a magnetic field to be applied to the second and third magneto-electric converting elements.

Abstract: A permanent magnet 60 for biasing is placed between opposite surfaces of a second stationary magnetic body 20 and a third stationary magnetic body 30, and a range in magnetic flux density detected by a magnetic sensor 50 is changed to thus include zero in the magnetic flux density. A correction and an adjustment of a temperature characteristic and so on of the magnetic sensor 50 are performed in a state of zero in the magnetic flux density.

Abstract: Embodiments relate to xMR sensors, sensor elements and structures, and methods. In an embodiment, a sensor element comprises a non-elongated xMR structure; and a plurality of contact regions formed on the xMR structure spaced apart from one another such that a non-homogeneous current direction and current density distribution are induced in the xMR structure when a voltage is applied between the plurality of contact regions.

Abstract: A conductive foreign material detecting apparatus includes an exciting coil configured to apply an AC magnetic field to a base substance through which the AC magnetic field passes, a magnetic sensor configured to detect a change of the AC magnetic field caused by a conductive foreign material on a surface of the base substance or in the base substance, a noise reduction coil configured to reduce a noise of substantially the same frequency as the AC magnetic field other than the change of the AC magnetic field by generating predetermined magnetic field to the AC magnetic field, and a current controller configured to control a drive current and a phase of the noise reduction coil so as to make the noise of substantially the same frequency as the AC magnetic field other than the change of the AC magnetic field be minimal.

Abstract: A non-contact current censor includes a spin valve structure (2), an electrical unit (4) that applies a varying current to the spin valve structure (2), and a resistance reading unit that electrically reads out a resistance value of the spin valve structure (2). When a current-induced magnetic field is detected, a coercive force of a free layer (14) is configured to be larger than the current-induced magnetic field as a detection target, and the electrical unit (4) allows the magnetization directions of a pinned layer (12) and the free layer (14) to transition between a mutually parallel state and a mutually anti-parallel state by applying the current to the spin valve structure (2). The resistance reading unit (5) detects a threshold value corresponding to the transition.

Abstract: There is provided a method for determining an abnormality during operation of a high voltage disconnect switch, the method comprising: determining a current position of an arm of the high voltage disconnect switch operatively connected to a motor, the motor being operated for driving the arm of the high voltage disconnect switch; determining a torque of the motor corresponding to the current position of the arm; comparing the torque of the motor to a torque threshold for the current position of the arm; and outputting an abnormality signal based on the comparison.

Abstract: Various embodiments can be generally directed to a magnetoresistive stack with a first stripe height and a biasing magnet positioned adjacent the magnetoresistive stack. The biasing magnet can have a second stripe height that is less than the first stripe height. The first and second stripe heights may correspond to a minimum signal to noise ratio in the magnetoresistive stack.

Abstract: This disclosure is directed to techniques for magnetic field angular position sensing. A device designed in accordance with this disclosure may include a magnetoresistive sensor configured to generate a signal indicative of an angular position of a magnetic field, the signal having an angular range of 180 degrees, a first polarity sensor configured to generate a signal indicative of a polarity of the magnetic field sensed from a first location, and a second polarity sensor configured to generate a signal indicative of a polarity of the magnetic field sensed from a second location different from the first location.

Abstract: A delivery system for delivering fluidic media to a user having a second housing portion configured to be selectively operatively engaged with and disengaged from a first housing portion, the first housing portion and the second housing portion configured to be slidable relative to each other to operatively engage each other; and a fluid connector supported by one the housing portions in a position to engage a reservoir supported by an other of the housing portions in a case where the first housing portion and the second housing portion are slid relative to each other to operatively engage each other.

Abstract: Embodiments relate to magnetic field sensors, such as magnetic field angle sensors with generally on-axis arrangements of sensor elements relative to a rotation axis of a magnet or shaft. The shaft comprises or is coupled to an end portion that comprises a soft magnetic material, in embodiments, with the end portion having an end surface proximate the sensor that is rotationally asymmetric with respect to the rotation axis running through the length of the shaft. The sensor comprises at least three magnetic field sensing elements arranged in a plane generally perpendicular to the shaft and rotation axis. Circuitry forming part of or coupled to the sensor is configured to estimate a rotational position of the shaft by combining the signals of the at least three magnetic field sensing elements.

Abstract: Embodiments relate to magnetic field angle sensing systems and methods.

Abstract: The present disclosure provides a magnetic medium, a magnetic encoder, and a method for manufacturing a magnetic medium with high reliability that can obtain the sufficient signal output, while reducing the hysteresis error.

Abstract: A relative angle sensing device that senses a relative angle between two rotary shafts is provided with: a hard magnetic body that is provided to one rotary shaft out of the two rotary shafts; a soft magnetic body that is provided to the other rotary shaft out of the two rotary shafts to be arranged in a magnetic field formed by the hard magnetic body, and forms a magnetic circuit together with the hard magnetic body; and a sensing unit that senses a magnetic flux density of the magnetic circuit. The soft magnetic body has a circular ring portion that is formed into a disc having, at an inside thereof, a hole larger than an outer shape of the hard magnetic body, and a protrusion that protrudes from a section of the circular ring portion at a hard magnetic body side in a shaft direction of the one rotary shaft.

Abstract: A magnetically-based position sensor. The sensor includes a magnet assembly that moves along a path, a common collector, one or more magnetic sensing elements, a first variable collector, and a second variable collector. The one or more magnetic sensing elements are coupled to the common collector. The first and second variable collectors are coupled to one of the one or more magnetic sensors and are configured to collect a magnetic field. The first and second variable collectors are positioned to transmit some of the magnetic flux generated by the magnet assembly as the magnet assembly moves along the path. The first variable collector and the second variable collector have a geometry and orientation such that the flux collected by the first and second variable collectors varies as the magnet moves along the path.

Abstract: A VR resolver 120 and an MR sensor 114 are mounted to a shaft 103. The VR resolver 120 and the MR sensor 114 are formed so as to have a shaft angle multiplier of not less than 2. The difference of the shaft angle multiplier between the VR resolver 120 and the MR sensor 114 is made to be 1. An absolute angle of the shaft 103 is calculated based on a difference between an angle calculated from an output of the VR resolver 120 and an angle calculated from an output of the MR sensor 114. Since the VR resolver 120 and the MR sensor 114 have a different failure mode, redundancy against failure is reliably obtained.

Abstract: A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an amplification stage, which is coupled to the magnetic-field sensor and generates an output signal as a function of the electrical detection quantity and of an amplification gain. In particular, the amplification gain is electronically selectable, and the reading circuit is moreover provided with a calibration stage, integrated with the amplification stage and configured so as to vary a value of the amplification gain in such a way as to compensate a variation of the detection sensitivity with respect to a nominal sensitivity value.

Abstract: Provided are a self-pinned spin valve magnetoresistance effect film, a magnetic sensor using the same, and a rotation angle detection device. The self-pinned spin valve magnetoresistance effect film has a strong coupling magnetic field in a pinned layer, a small reduction in the change in resistance, and superior resistance to magnetic fields without reducing the coercive force in a first ferromagnetic layer, which is a pinned layer in the film, even when exposed to a strong external magnetic field. By inserting a non-magnetic layer between a ground layer and a pinned layer to form the spin valve magnetoresistance effect film, the self-pinned spin valve magnetoresistance effect film having superior resistance to magnetic fields, a magnetic sensor using the same, and a rotation angle detection device are obtained.

Abstract: The invention relates to an integrated sensor, including terminals (1, 2) for connection to an electric generator, said terminals being connected to a metal measuring line (4, 5) in which a current proportional to the voltage or current of the generator to be measured flows, and magnetoresistors (31, 32, 33, 34). The metal measuring line includes elongate and parallel sections (4, 5) in which the current flows in opposite directions, said sections being connected to a portion (3) for closing the metal measuring line (3, 4, 5), which is arranged on a galvanic isolation layer (8) that is in turn arranged on an integrated circuit portion including the magnetoresistors (31, 32, 33, 34), each of which have a sensitive portion that is vertically adjacent to one of the elongate sections (4, 5). The sensor can be integrated into a diagnostic system.

Abstract: A magnetoresistive sensor is provided. Specifically, multiple layers of or single layer of conductor line are formed at the same level as an insulating layer on a substrate as a bottom conductive layer. A magnetoresistive structure is formed on the bottom conductive layer and has opposite first surface and second surface. The second surface faces toward the substrate and is contacted with the bottom conductive layer. Afterward, another insulating layer is formed on the first surface, a slot is formed at the same level as the another insulating layer and a conductor line is formed in the slot and contacted with the first surface, so that one layer or multiple layers of conductor line can be formed as a top conductive layer. A lengthwise extending direction of each of the bottom and top conductor layers is intersected a lengthwise extending direction of the magnetoresistive structure with an angle.

Abstract: An apparatus includes circuits, a field line configured to generate a magnetic field based on an input, a sensing module configured to determine a parameter of each circuit, and a magnetic field direction determination module configured to determine an angular orientation of the apparatus relative to an external magnetic field based on the parameter. Each circuit includes multiple magnetic tunnel junctions. Each magnetic tunnel junction includes a storage layer having a storage magnetization direction and a sense layer having a sense magnetization direction configured based on the magnetic field. Each magnetic tunnel junction is configured such that the sense magnetization direction and a resistance of the magnetic tunnel junction vary based on the external magnetic field. The parameter varies based on the resistances of the multiple magnetic tunnel junctions. The magnetic field direction determination module is implemented in at least one of a memory or a processing device.

Abstract: An apparatus includes circuits, a field line configured to generate a magnetic field based on an input, a sensing module configured to determine a parameter of each circuit, and a magnetic field direction determination module configured to determine an angular orientation of the apparatus relative to an external magnetic field based on the parameter. Each circuit includes multiple magnetic tunnel junctions. Each magnetic tunnel junction includes a storage layer having a storage magnetization direction and a sense layer having a sense magnetization direction configured based on the magnetic field. Each magnetic tunnel junction is configured such that the sense magnetization direction and a resistance of the magnetic tunnel junction vary based on the external magnetic field. The parameter varies based on the resistances of the multiple magnetic tunnel junctions. The magnetic field direction determination module is implemented in at least one of a memory or a processing device.

Abstract: An apparatus includes circuits, a field line configured to generate a magnetic field based on an input, a sensing module configured to determine a parameter of each circuit, and a magnetic field direction determination module configured to determine an angular orientation of the apparatus relative to an external magnetic field based on the parameter. Each circuit includes multiple magnetic tunnel junctions. Each magnetic tunnel junction includes a storage layer having a storage magnetization direction and a sense layer having a sense magnetization direction configured based on the magnetic field. Each magnetic tunnel junction is configured such that the sense magnetization direction and a resistance of the magnetic tunnel junction vary based on the external magnetic field. The parameter varies based on the resistances of the multiple magnetic tunnel junctions. The magnetic field direction determination module is implemented in at least one of a memory or a processing device.

Abstract: According to one embodiment, a method for determining a position of a rotor blade includes receiving a plurality of measurements from a plurality of magneto-resistive sensors and determining a position of the at least one magnet based on the received plurality of measurements. In this example, one of the plurality of magneto-resistive sensors and the at least one magnet moves with a rotor blade.

Abstract: A position sensor system is useful for monitoring positions of shifters in transmissions and other applications. The position sensing system has an array of magneto resistive sensors and a controller configured to determine a position of a magnet along a path by triangulation. Some embodiments are relatively insensitive to fluctuations in a distance between the sensors and the path. Also described is an actuating assembly comprising a movable cylinder and a fixed rod. The actuating assembly may be applied for moving synchronizers or the like in power transmissions.

Abstract: A rod-shaped magnet is mounted on a rotating unit. The rod-shaped magnet has end surfaces which are oriented in a rotating direction and are magnetized to different magnetic poles. An angle detecting unit including magnetoresistive elements is disposed so as to be offset in a radial direction of a revolution path of the magnet from the revolution path and is configured to detect a change in angle of rotation of the rotating unit by detecting a leakage magnetic field in the vicinity of a side surface of the magnet. Two position detecting units each include magnetoresistive elements and are configured to detect a change in orientation of a magnetic field in the direction of a tangent to the revolution path when facing the rod-shaped magnet and produce a switch output.

Abstract: A position signal generating part 11 has a series of a plurality of continuous projections and indentations provided with a pitch ? in the direction of the circumference of a rotating body 10. An origin signal generating part 12 has a discontinuous portion 12b that partly interrupts the continuity of the series of the plurality of projections and indentations provided with the pitch ? in the direction of the circumference of the rotating body 10. A third magnetoresistive element 23 and a fourth magnetoresistive element 24 are spaced from each other in the direction of the circumference of the rotating body 10 with a distance equal to the pitch multiplied by m (m=1, 2, 3, . . . ) for detecting a change in a magnetic field that corresponds to an origin signal.

Abstract: Outputs from first and second magnetic detection units are applied to first to fourth output circuits, each being a differential amplifier, and therefore detection outputs S1 and S2 approximating a sine wave reversed in positive/negative polarity with each other and detection outputs S3 and S4 approximating a cosine wave reversed in positive/negative polarity with each other can be obtained. These detection outputs S1 to S4 are applied to a switching circuit, so that a partial detection output can be obtained at intervals of 90 degrees from the detection outputs S1 and S4. In a bias adding circuit, a bias voltage is applied to each partial detection output, so that the partial detection outputs become consecutive outputs to thereby obtain an angle detection output approximating a linear function.

Abstract: The disclosure relates to a magnetic position sensor in at least two directions, the sensor including at least one magnetized element and a probe including at least two magneto-sensitive elements located substantially on the same point and each measuring one of the components of the magnetic field generated by the magnetized element, the magnetized element being movable relative to the magneto-sensitive elements. The probe includes at least one processing circuit capable of carrying out angle and module calculations on the basis of algebraic combinations of the components of the magnetic field and providing at least two independent signals representing the position of the movable element along, respectively, one and the other of the two directions.

Abstract: The magnetic sensor of the invention comprises a base portion, a sensor chip positioned on the base portion, a wiring portion adapted to electrically connect a terminal of the sensor chip to a connecting lead, a resin having a low elastic modulus for coating at least the sensor chip, and a resin having a high elastic modulus for coating at least the low elastic-modulus resin and the wiring portion, wherein the sensor chip includes a magneto-resistive effect device, and the low elastic-modulus resin has an elastic modulus ranging from 10 kPa to 80 MPa while the high elastic-modulus resin has an elastic modulus of 1 GPa or more, and enables the sensor chip to perform well in a good state although having a structure of sealing up the sensor chip with the resin member.

Abstract: The present invention relates to a magnetic sensor that provides the sensitivity adjustment on a wafer and that has a superior mass productiveness and a small characteristic variation. The magnetic sensor includes a magnetic sensitive portion provided on a substrate that is made of a compound semiconductor and that has a cross-shaped pattern. This magnetic sensitive portion includes input terminals and output terminals. At least one of input terminals of the input terminal is series-connected to a trimming portion having a compound semiconductor via a connection electrode. By performing laser trimming on the trimming portion series-connected via the connection electrode to the magnetic sensitive portion while performing a wafer probing (electric test), the adjustment of the constant voltage sensitivity is provided.

Abstract: An angle sensor for sensing angular position of a rotatable shaft includes a drive gear, a measuring gear, and a sensor housing. The drive gear is connected to the shaft. The measuring gear is driven by the drive gear. The angular position of the shaft can be determined from an angular position of the measuring gear. The sensor housing has a bearing for the drive gear. The drive gear and the measuring gear are rotationally mounted about respective axes of rotation in the sensor housing with the drive gear being inside the bearing. The drive gear is forcibly pressed into a radial position inside the bearing by at least one spring.

Abstract: A magnetic detection element includes a magnetoresistance effect portion composed of a magnetoresistance effect material and a pair of yoke portions. The pair of yoke portions is composed of a soft magnetic material and are respectively arranged so as to be electrically connected to both sides of the magnetoresistance effect portion. The pair of yoke portions guides magnetic flux into the magnetoresistance effect portion. The magnetic detection element also includes a bypass portion, which is composed of a soft magnetic material and is saturated with magnetic flux at lower magnetic field intensity than the yoke portions, and which guides a part of the magnetic flux generated in the yoke portions so as to divert the magnetic flux from the magnetoresistance effect portion.

Abstract: A hand-held check fixture to indicate excessive play in a pitch change link ball joint is provided. The check fixture can include a first member for attachment to a first portion of the pitch change link, a second member for attachment to a second portion of the pitch change link, and a gage to indicate movement of the first member relative to the second member. The gage is adapted to indicate the clearance between a pitch change link ball bearing and a pitch change link knuckle in the axial direction and/or in the radial direction. The check fixture can assist in evaluating the flightworthiness of each pitch change link on a rotor assembly with relative ease and without requiring the complete removal of each pitch change link from the rotor assembly.

Abstract: A magnetic sensor includes a substrate, and a pattern forming region on the substrate, the pattern forming region having a substantially quadrangle shape. The pattern forming region includes a magnetic detection element pattern that includes a plurality of linear parts arranged parallel to each other at a predetermined inclination angle to two sides of the quadrangle shape, and a plurality of turning parts configured to alternately connect both end portions in a longitudinal direction of adjacent linear parts of the plurality of linear parts. The magnetic detection element pattern further includes a first pattern, and a second pattern with a resistance change ratio less than the first pattern. An area of the magnetic detection element pattern is less than an area of the pattern forming region in a plane view.

Abstract: Systems and methods for sensing position of a magnetic target are disclosed. In embodiments, three magnetic field sensing elements are arranged equidistantly from each other to define a plane and a central axis perpendicular to the plane. The magnetic field sensing elements are configured to generate a respective output signal representing proximity of a magnetic target that is proximate to the central axis and capable of moving relative to the central axis. A processor circuit is coupled to receive output signals from each of the sensors and configured to calculate a position of the magnetic target relative to the plane.