Abstract: The subject of the present invention is a method for communicating a malfunction of a system for measuring speed and direction of rotation of a rotary shaft, said system comprising: a toothed wheel associated with said rotary shaft, called target (14), a magnetic field sensor (10?), measuring values (K, A) of the magnetic field (B, B?, B?) generated by the passage of the teeth (T1, T2 . . . Ti) in front of said sensor (10?) and delivering a signal (S, S?, S?) to processing means 13). According to the invention, the method comprises the following steps: step 1: comparison by the sensor between the measured values and predetermined threshold values of the magnetic field, step 2: if the measured values are below the predetermined threshold values, step 3: generation by the sensor of a coding on the signal, representative of the measured values, to communicate a malfunction of the system to the processing means.

Abstract: An automatic calibration method for a motor vehicle camshaft sensor, the vehicle having at least one camshaft, a toothed encoded target (or magnetic encoder) associated with this camshaft, and a magnetic field sensor placed near the target to detect magnetic field variations caused by the passage of the teeth of the target near the sensor, the sensor delivering signals corrected by a predetermined detection threshold K, the method including: continuously measuring the value of the magnetic field during at least one revolution of the target, determining the maximum amplitude Amax of the field measured during this revolution, determining the minimum amplitude Amin of the field measured during this revolution, finding the ratio of the amplitudes A min A max and determining an auto-adaptive correction coefficient K? to be applied to the signal received from the magnetic sensor, with allowance for the geometrical imperfections of the target, according to the following formula: K ? = A min A

Abstract: A magnetic field sensor includes a comparator coupled to receive a calculated threshold value based upon a temperature signal, a stored value of a temperature coefficient signal, and a stored value of a measure threshold signal, and also coupled to receive a signal representative of a magnetic field signal. The comparator is configured to compare the calculated threshold value with the signal representative of the magnetic field signal to generate an output signal. A corresponding method is associated with the magnetic field sensor.

Abstract: A bearing housing (1) of an exhaust-gas turbocharger (EGT), having a mounting bore (2); a bearing device (3) which has two bearing bushes (4, 5) which are arranged in the mounting bore (2), between which bearing bushes is arranged a spacer (6); a rotational speed sensor (7) which engages into a sensor recess (8) of the spacer (6); and a locating pin (9) which is screwed into a pin bore (10) and which engages with its pin head (12) into a pin recess (11) of the spacer (6); wherein the pin recess (11) is formed as a slot.

Abstract: A sensor device is described for the contactless acquisition of a rotatable object, in particular for acquiring a rotational speed of a compressor wheel of a turbocharger. The sensor device includes a sensor housing. The sensor device also includes at least one magnetic-field generator for generating a magnetic field at the location of the rotatable object, and at least one magnetic-field sensor for detecting a magnetic field generated by eddy currents of the rotatable object. The sensor device furthermore includes at least one connection element, the connection element being set up to connect the sensor device to a device that includes the rotatable object, especially a turbocharger, so that the magnetic-field generator and the magnetic-field sensor are at least partially disposed together in a sensor section of the sensor housing, and the sensor housing is at least regionally set apart from the device that includes the rotatable object.

Abstract: A bearing cap having a top wall, a side wall extending away from the top wall, a peripheral wall extending away from the top wall forming a receiver, a bottom wall closes the receiver at an axial end facing the top wall, and at least one opening is formed by the peripheral wall to drain moisture from the receiver.

Abstract: A bearing device, comprising a bearing including an inner ring and an outer ring centered on a central axis, an impulse ring including a target holder which is fixed to the inner ring and extends beyond the outer ring radially to the central axis, and a target which is fixed to the target holder beyond the outer ring and is adapted to cooperate with detection means for tracking the rotation of the impulse ring around the central axis, and shifting means for axially shifting the impulse ring relative to the outer ring; the shifting means are distinct from the target holder. A sensor-bearing unit and an apparatus comprising at least one such bearing device are also disclosed and claimed.

Abstract: An axle assembly for measuring wheel speed is provided. The axle assembly includes a knuckle having a locking jaw for a bearing formed at a position on a vehicle, the knuckle including an inner circumferential surface configured to allow the bearing to be inserted from the outside of the vehicle to the inside, a speed sensor affixed to the locking jaw, and a magnetic encoder affixed to the bearing.

Abstract: A bearing assembly for rotatively holding a shaft with respect to a support member and comprises: a bearing, with a rotatable ring and a fixed outer ring to be immobilized within a housing of said support member. An encoder washer is fast in rotation with the rotating ring. At least one sensor is adapted to detect at least one rotation parameter of the encoder washer and a sensor body holds this sensor. An annular flange is used for mounting said sensor body with respect to the fixed outer ring. The annular flange has a first skirt and a second skirt which define, between them and a bottom wall of the flange, an annular recess for accommodating at least a part of the sensor body. In mounted configuration of the bearing assembly, the first and second skirts extend respectively towards the rotatable and fixed rings.

Abstract: Embodiments described herein use capacitive sensing to detect human interaction with living plants. A sensing system may utilize the natural conductive paths found in an organic plant to transmit an electrical signal between the plant and a user interacting with the plant. By directly contacting the plant or coming into proximity of the plant, the user may affect the electrical signal. That is, the electrical properties of the user (e.g., the capacitance of the human body) change a measured impedance curve associated with the electrical signal. Based on this change, the sensing system detects an interaction between the user and the plant and may inform a user interaction device to provide a feedback response to the user. For example, the feedback response may be an audio or video effect that is based on the type of user interaction such as whether the user touched the plant's leaf or stem.

Abstract: A position detector is provided that can detect the position of a moving member with a higher degree of accuracy. In one form, a rotation sensor includes a magnet in which N-pole magnets and S-pole magnets are arranged alternately and circularly and that rotates in conjunction with the rotation of a spool, and first and second Hall elements and that are disposed apart from each other in the circumferential direction of the magnet and detect the poles of the N-pole magnets and S-pole magnets. In that case, the first and second Hall elements and are both unipolar detection type Hall elements that detect only the S-pole. The magnetization width of the S-pole magnets is set large, and the magnetization width of the N-pole magnets is set small.

Abstract: A measuring system having a first magnetic field sensor, a second magnetic field sensor, an encoder, and an evaluation circuit to which the first magnetic field sensor and the second magnetic field sensor are connected. The evaluation circuit generates a first signal and a second measurement signal. The encoder generates a second magnetic field change with a second periodicity. The evaluation circuit generates a second signal with the second periodicity from the first measurement signal of the first magnetic field sensor and the second measurement signal of the second magnetic field sensor according to an absolute value function.

Abstract: A wheel bearing having a sensor holder (8) to hold a sensor that detects the rotational movement of a wheel, including: a rotating inner race (1) onto which a wheel of the motor vehicle can be mounted, a stationary outer race (2) attached to a motor vehicle, an encoder (4) associated with the rotating inner race (1), a cover (4) arranged on the stationary outer race (2), whereby the sensor holder (8) is formed by a recess that is provided in the cover (3) and that is arranged opposite from the encoder (4), said recess being closed on the side facing the encoder (4) by a partition (7) that is permeable to the magnetic alternating field between the encoder (4) and the sensor.

Abstract: Provided is a magnetic encoder which includes plural rows of magnetic encoder tracks. One magnetic encoder track of the magnetic encoder tracks includes magnetic pattern magnetized thereto to generate signals of equal pitch for detection of rotation. The magnetized magnetic pattern includes N poles and S poles arranged in alternate fashion. The magnetic encoder is configured to be employed spaced through an air gap from sensors that read magnetic signals of the respective magnetic encoder tracks. The magnetic encoder track is configured such that the magnetic pattern thereof acting on position of the corresponding sensor is, under the interference of magnetism of the plural rows of magnetic encoder tracks, detected by the corresponding sensor as an equal pitch magnetic pattern.

Abstract: A rigid body characteristic identification system which identifies rigid body characteristics of a measurement target including its mass and center of gravity position, provided with an immovable stationary part 10, moving parts 20 which can move with respect to the stationary part and include a measurement target T, support means 30 for supporting the moving parts with respect to the stationary part in a freely vibratable manner, measuring means 40 for measuring data which is necessary for calculating the natural frequency of the moving parts when the moving parts are vibrating, and analyzing means 50 for receiving as input the support conditions by the supporting means and the measurement data which was measured by the measuring means and for performing processing based on these support conditions and natural frequency calculated from the measurement data.

Abstract: Method, system, and programs for calibrating battery pack voltage are disclosed. A negative terminal voltage of a cell is changed from a first to a second negative terminal voltage so that a cell voltage is changed from a first to a second output voltage. A positive terminal voltage of the cell is maintained at a substantially constant level. A differential-mode calibration parameter is calculated based on a difference between the first and second output voltages and a difference between the first and second negative terminal voltages. The negative terminal voltage of the cell is then changed from the first to second negative terminal voltage so that the positive terminal voltage of the cell is changed from a first to a second positive terminal voltage and the output voltage is changed from a third to a fourth output voltage. The cell voltage is maintained at a substantially constant value.

Abstract: A speed sensor system for a locomotive traction motor of the type having a motor frame head adjacent each wheel truck, including a mounting bracket, attachable to the frame head at a prescribed distance from an axis of rotation of the motor and a sensor support portion extending from the inner surface through the ventilation opening and having a hollow tubular portion at the end for releasably receiving and positioning a separate sensor assembly in such a manner that the sensor itself is precisely positioned with respect to the armature gear surface of the traction motor.

Abstract: A method for evaluating an analog signal of an inductive sensor that carries data on a rotational motion includes directly connecting the inductive sensor to an A-D converter via resistors, and reading in the analog signal by the A-D converter to emit digital data. The digital data is evaluated to determine zero crossings of the analog signal.

Abstract: A sensor device includes an exchangeable module shaped as a substantially annular disk and concentrically mounted at or on a shaft of an electric machine. The exchangeable module includes a detection device for detecting a bearing current of the electric machine and an energy converter device configured to convert mechanical energy of the shaft into electrical energy for transmission to the detection device.

Abstract: A measurement system includes a speed plus sensor and a control unit. The speed plus sensor is configured to detect a magnetic field in response to speed and resonance characteristics. The speed plus sensor is also configured to generate a sensor output signal having speed data and enhanced resonance data. The control unit is configured to receive the sensor output signal.

Abstract: To provide a thin and slender magnetic angle sensor, a main circuit board is disposed in the direction of the longitudinal axis of the sensor. This sensor element in form of a chip is supported on a sensor circuit board, which is positioned transversely to the main circuit board at the forward narrow side of the main circuit board.

Abstract: A method for manufacturing a sensor in which a sensor element, which comprises at least a first housing, is at least partially encapsulation-molded in an encapsulation-molding process. As a result of the encapsulation-molding process a sensor housing is formed. The sensor element is mechanically connected to a support element and/or accommodated by the support element, after which the sensor element and the support element are encapsulation-molded in a common encapsulation-molding process for forming the sensor housing.

Abstract: An encoder is configured for detection of rotational movement of a rotatable shaft in relation to a part of a machine, and a method is provided for generating a reference signal by an encoder.

Abstract: A sensor subassembly for a vehicle has at least one sensor unit arranged in a cap-shaped plastic part. The cap-shaped plastic part is carried by a retaining bush and seals off the retaining bush at one end. An associated device is configured to measure rotational movement of a wheel bearing. A resilient sealing and compensating element in pressed in between the-shaped plastic part and the retaining bush, in a first sealing area for sealing off a first leakage path, so that the cap-like plastic part, in conjunction with the sealing and compensating element, seals off the retaining bush tightly at one end.

Abstract: A scanning device for a position encoder is provided that comprises a plurality of sensor elements for generating a plurality of sensor signals. A summation unit is also provided for generating at least a first summation signal and a second summation signal that provide information on the relative alignment of the scanning device and an associated scale. The first summation signal is generated from a first subset of the plurality of sensor signals and the second summation signal is generated from a second subset of the plurality of sensor signals. The plurality of sensor elements are substantially evenly spaced apart from one another N and sensor elements are provided per period of an associated scale, wherein N is an integer value and a multiple of three and four. In this manner, the third harmonic contribution to the summation signals is suppressed.

Abstract: The present invention has an object to provide a lightning current detection sensor that has a configuration resistant to high voltage and high current in a lightning strike and has high sensitivity and high resolution. In a lightning current detection sensor 10, an insulation-coated wire 22 wound in multiple turns is collectively covered with a base tape 21 and a cover tape 23. Thus, even when the insulation-coated wire 22 is wound in multiple turns to increase sensitivity, a minute area can be detected to increase resolution. Also, with the base tape 21 and the cover tape 23 covering the insulation-coated wire 22 and also a shield portion 12 made of an insulating material and a gap 40 formed between the shield portion 12 and the coil portion 20, a sufficient shielding property is ensured and detection with high accuracy can be performed against high current and high voltage without capacitative coupling.

Abstract: A chip on glass substrate includes a substrate, first, second, and third pads that are arranged on the substrate and that are electrically connected to an IC device, and first to fourth conductive patterns. A first conductive pattern is arranged on the substrate, has one end electrically connected to the first pad, and has another end that is electrically floated. Second and third conductive patterns are arranged on the substrate, each have one end electrically connected to the second pad, and each have another end that is electrically floated. A fourth conductive pattern is arranged on the substrate, has one end electrically connected to the third pad, and has another end that is electrically floated.

Abstract: A rolling bearing sensor, especially a rotational speed sensor, having a housing and a signal pick-up which is arranged in the housing in a manner secured against rotation and is arranged, with the housing, in a stationary receptacle in a stationary part of a rolling bearing or in a stationary component adjoining a rolling bearing, for example, an axle journal, where the housing has an outer design via which the rolling bearing sensor in the receptacle is secured against rotation in a form-fitting manner. The sensor may have a groove which runs in the axial direction and interacts with a screw or a projection. Alternatively, a securing element which predefines a defined angular position may be pushed onto the sensor.

Abstract: A magnet held in a magnet holder is constrained against radial or axial instability, or against both, by a shape on either component in contact with complementary shape on the other component, the shaped components generally defining a tab-and-slot arrangement. The magnet component may be a bonded magnet and in one embodiment may be formed in place by injection molding. The magnet also will exhibit improved magnet properties when magnetized to have lines of polarity matching a path defined by the bulk of the magnetic material as governed by the location of tabs on the magnet. The invention is useful in magnet-sensor assemblies found in industrial applications and in automotive applications such as power steering systems.

Abstract: This instrumented bearing comprises a bearing and a sensor unit for sensing the angular position of the rotatable ring with respect to the fixed ring of the bearing, an encoder element which is fastened to the rotatable ring, and a sensing element fastened to the fixed ring, adapted to sense a parameter representative of the rotation speed of the rotatable ring. The sensing element is mounted in a casing fastened with the fixed ring. The casing provides a peripheral wall mounted on the fixed ring and which includes at least one snap portion adapted to be received in a recess of a surface of the fixed ring, and at least one axial blocking portion adapted to abut against a lateral surface of the fixed ring, perpendicular to the rotation axis of the instrumented bearing. Each snap portion and each blocking portion alternate around a central axis (X6).

Abstract: A contactless detection apparatus has a first magnet ring, a second magnet ring, a first magnetic sensor, a second magnetic sensor and a controller. The two magnet rings are respectively mounted on two ends of a torsion shaft. When the torsion shaft rotates, the controller detects the magnetic fields of the two magnet rings through the two magnetic sensors. The controller calculates a twisting torque exerted on the torsion shaft and a rotational angle of the torsion shaft according to the detected magnetic fields at the same time. The detection apparatus of the invention has simple structure. The magnetic fields of both magnet rings do not interfere with each other, such that the detection result of the invention is accurate.

Abstract: According to one aspect, there is provided a method for compensating for gyroscope bias on a portable electronic device having a gyroscope, and at least one of an accelerometer and a magnetometer. The method includes determining a first attitude matrix and a second attitude matrix using data from the accelerometer and the magnetometer, determining a difference between the first attitude matrix and the second attitude matrix, estimating a rotational velocity based on the difference between the first attitude matrix and the second attitude matrix, and compensating for an output from the gyroscope to generate a compensated output that compensates for the gyroscope bias using the estimated rotational velocity.

Abstract: A device for visually indicating a change in the operational state of a proximity sensor. The device includes a transparent housing having a cavity and a magnet device for generating a magnetic field. In addition, a sleeve is attached to the housing. The magnet device is concealed within the sleeve in a first position to indicate a first operational state. When a target is positioned adjacent the sensor end, magnetic attraction occurs between the target and the magnet device due to the magnetic field to cause movement of the magnet device to a second position within the cavity wherein the magnetic field does not act on the proximity sensor to change the operational state from the first operational state to a second operational state. Further, the magnet device is visible in the second position to indicate the second operational state.

Abstract: Embodiments of the invention described herein provide a magnetic sensor interface capable of adjusting signal conditioning dynamically using a speed signal of a target such that the true positive and negative peaks of the input signal are maintained for the given target across its entire speed range (0-Max rpm), therefore increasing the signal to noise ratio at low speeds and avoiding clipping or distortion at high speeds. In one aspect, a method comprises receiving an alternating differential voltage signal from a sensor. The differential voltage signal has an amplitude that changes relative to a change in speed of a target. The alternating differential voltage signal is converted to an attenuated single-ended voltage signal that can be dynamically scaled. The attenuated single-ended voltage signal can be scaled by multiplying the attenuated single-ended voltage signal by a scaling factor.

Abstract: A device configured for rotary speed measurement includes a speed transmitter on which segments are distributed across a radial circumference and a sensor that is substantially stationary relative to the speed transmitter. A method for determining the rotary speed of the device includes continuously determining pass-through times of all segments relative to the sensor, continuously determining revolution times of the speed transmitter by summing the pass-through times of all segments over a complete revolution, and continuously determining the speed from the revolution times. The revolution times are determined after each pass-through of a segment relative to the sensor and the most current pass-through times of all segments are used for determining each revolution time. Since the time for a full revolution is calculated for each segment respectively, differences in the length of individual segments due to production do not have any negative influence on the calculation of speed.

Abstract: An embodiment of a magnetic-field sensor includes a magnetic-field sensor arrangement and a magnetic body which has, for example, a non-convex cross-sectional area with regard to a cross-sectional plane running through the magnetic body, the magnetic body having an inhomogeneous magnetization.

Abstract: A magnetic field sensor includes a true power on state (TPOS) detector for which a measured threshold value is stored prior to power down and recalled upon power up. A corresponding method is associated with the magnetic field sensor.

Abstract: An electrical connector between an induction sensor and a cable for transmitting a signal provided by the sensor, including a current transformer with a primary coil and a mechanism for electrically coupling to the sensor, and a secondary coil with a mechanism for electrically coupling to the cable, the primary and secondary coils being attached together by a removable attachment mechanism.

Abstract: Embodiments of the invention described herein provide a magnetic sensor interface capable of adjusting signal conditioning dynamically such that the true positive and negative peaks of the input signal are maintained for a given target across its entire speed range (0-Max rpm), therefore increasing the signal to noise ratio at low speeds and avoiding clipping or distortion at high speeds. In one aspect, a method comprises receiving an alternating differential voltage signal from a sensor. The alternating differential voltage signal has an amplitude that changes over time. The alternating differential voltage signal is converted to an attenuated single-ended voltage signal that can be dynamically scaled. The attenuated single-ended voltage signal can be scaled by multiplying the attenuated single-ended voltage signal by a scaling factor. The scaling factor is selected relative to a signal-to-noise ratio of the scaled attenuated single-ended voltage signal.

Abstract: A motion sensor has an output protocol processor configured to provide a validated output signal after a determined time period, wherein the determined time period is extended if a vibration is detected.

Abstract: A non-ferrous shaft includes multiple non-integral ferrous tooth components, thereby allowing a sensor to detect the shaft speed.

Abstract: An angle measuring system includes a first component group and a second component group, the first component group being mounted in a manner allowing rotation about an axis relative to the second component group. The first component group includes a ring having a running surface and an angle scaling. The second component group has a further ring having a further running surface, as well as a sensor for scanning the angle scaling. Rolling elements are arranged between the running surfaces, the angle scaling being applied such that a geometric pattern of the angle scaling in a first region differs from a geometric pattern of the angle scaling in a second region as a function of radial runouts of the running surfaces and/or of the rolling elements.

Abstract: A magnetoresistive sensor that has a free layer with a face centered cubic, 100 crystal orientation formed on an underlayer structure that has been deposited in the presence of nitrogen. The free layer can be constructed of CoFe, Co2(Mn(1-y)Fey)X (where 0?y?1 and X is Si, Ge, Sn, Al, Ga, or a combination thereof), CoFeX (where X is Si, Ge, Sn, Al, Ga, or a combination thereof). The under-layer can include a layer of Ta, a Cu layer formed over the layer of Ta and deposited using a process gas comprising about 20 percent nitrogen and a layer of Ag deposited over the layer of Cu and deposited using a process gas comprising about 50 to 100 percent nitrogen.

Abstract: An apparatus and a method provide an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object capable of rotating. A variety of signal formats of the output signal are described.

Abstract: An arrangement of a brake disc on a wheel hub, in particular a hub of a utility vehicle, having multiple support elements distributed on the inner circumference of the brake disc which correspond to drivers disposed on the outer circumference of the wheel hub. Securing elements which press against both the drivers and also adjacent support elements to axially secure the brake disc are provided. A rotor is disposed in the attachment area of the brake disc on the wheel hub, the rotor having attachment parts for axial and twist-locked fixing which each engage behind the securing elements.

Abstract: A sensor unit with at least one magnetic field sensor element, at least one application specific integrated circuit (ASIC) and at least one magnet are arranged in a capsule housing on at least one leadframe. The capsule housing is surrounded by a sensor encapsulation and is intended to have smaller dimensions so as to allow it to be positioned in the encapsulating mold with less effort and at the same time in the exact position. For this purpose, it is provided that the capsule housing has a number of fixing aids adapted in their outer dimensions to an injection mold assigned to the sensor encapsulation.

Abstract: A magnetic detector includes a detecting section having a surface facing a magnetic body which moves and emits a magnetic flux. The detecting section includes plural magnetic sensors for detecting the magnetic flux. The magnetic sensors are arranged in a matrix form having three or more rows and three or more columns arranged along the surface of the detecting section. The magnetic detector provides an input device precisely detecting a moving direction and a moving amount of the magnetic body.

Abstract: A sensor-equipped wheel support bearing assembly includes a sensor unit provided in an outer member, which serves as a stationary member. The sensor unit has a strain generator and a sensor for detecting a strain occurring in the generator. A principal load estimator estimates the load acting on the wheel, with the use of an average value of a signal from the sensor, and an amplitude processed load estimator estimates the load, using amplitude of a signal wave outputted from the sensor, resulting from passage of rolling elements. A drift amount estimator estimates a drift amount of an estimated load output utilizing the average value and the amplitude, which is used to correct the estimated load.

Abstract: A control system for use in safety critical human/machine control interfaces is described, more particularly a joystick type control system and particularly a joystick type control system utilizing magnetic positional sensing. The control system provides a control input device having a movable magnet, a pole-piece frame arrangement positioned about the magnet, at least three magnetic flux sensors being positioned in said pole-piece frame arrangement and a monitoring arrangement for monitoring the output signal of each of said at least three sensors.

Abstract: The invention relates to an electrical drive having a motor with a rotor and a stationary stator, which has a coil arrangement, and having a motor controller for controlling the motor, with the motor controller being configured to pass current through the coil arrangement in order to produce an excitation field, with the coil arrangement having a plurality of coil winding sections, and with each coil winding section having a plurality of coil sections, wherein the polarity of at least one coil section of the plurality of coil sections of each coil winding section can be selectively reversed with respect to the other coil sections of the coil winding section. The drive is particularly suitable for use for an electrical tool.