Abstract: A magnetic position sensor comprises at least one magnetically sensitive element capable of moving relative to a permanent magnet producing a magnetic field, the magnet of which is embedded in a support made of soft ferromagnetic material having two pole shoes located on either side of the magnet.

Abstract: A magnetic field speed sensor includes one or more magnetic field sensing elements to generate a magnetic field signal indicative of a magnetic field associated with a moveable target and a controller to generate a controller output signal including a plurality of output words, each including a speed pulse and a plurality of data pulses capable of having four different amplitudes. The time between the speed pulses of consecutive output words is indicative of the speed of movement of the target. Each data pulse corresponds to a data bit having a binary value represented by a transition direction of the data pulse and the amplitude of the data pulse. Features include a programmable data pulse width or an adaptively adjustable data pulse width to avoid truncation.

Abstract: A DC electrical meter (62) includes or is connected to a current sensor (1). The current sensor includes a busbar connector (2) including a first part (3) connected to a third part (4) via a second part (5). The second part (5) includes a main body (6) integrally formed with first (7a) and second (7b) connecting members, each having a proximal end (8a, 8b) where it meets the main body (6) and a distal end (9a, 9b) electrically coupled to a respective conductive element (10a, 10b) supported on a substrate (11) and coupled to circuitry (12) configured to measure a voltage therebetween. When a first temperature difference (?T1) exists between the respective proximal ends (8a, 8b) of the first (7a) and second (7b) connecting members, a second temperature difference (?T2) between the respective distal ends (9a, 9b) is less than or equal to 50% of the first temperature difference (?T1).

Abstract: A semiconductor module inspection device of the present disclosure includes a PCB substrate, an IC socket that accommodates a semiconductor module disposed on a first main surface of the PCB substrate, a first temperature control device disposed in contact with an upper surface of the IC socket, and a second temperature control device disposed in contact with a second main surface of the PCB substrate. In an embodiment, the first temperature control device and the second temperature control device have a Peltier element and a heat dissipation fin. In an embodiment, the semiconductor module inspection device further includes a chamber structure including a chamber upper portion connected to the heat dissipation surface of the first temperature control device, a chamber lower portion connected to the heat dissipation surface of the second temperature control device, and a purge mechanism for purging the chamber internal space with dried air.

Abstract: An apparatus comprises a support structure, one or more oscillator coils, a first sense coil, and a second sense coil. The one or more oscillator coils have a circular winding pattern around an axis of rotation for a target. The first sense coil has a coil winding pattern arranged around the axis and surrounded by the circular winding pattern of the one or more oscillator coils. The second sense coil has a coil winding pattern arranged around the axis and surrounded by the circular winding pattern of the one or more oscillator coils. The coil winding pattern of the second sense coil offset from the coil winding pattern of the first sense coil by an angle of substantially ? degrees, where ?=60°/N, and N is an integer number of pole pairs of the apparatus.

Abstract: A magnetic sensor system includes a toothed wheel configured to rotate about a rotation axis that extends in an axial direction, wherein the toothed wheel includes a plurality of teeth and a plurality of notches arranged that define a circumferential perimeter, wherein the toothed wheel further includes an interior cavity arranged within the circumferential perimeter; a front-bias magnet arranged within the interior cavity of the toothed wheel, wherein the front-bias magnet is rotationally fixed and is magnetized with a magnetization direction that extends along a radial axis of the toothed wheel; and a magnetic sensor arranged exterior to the toothed wheel, wherein the magnetic sensor includes a sensor element arranged on the radial axis that coincides with the magnetization direction of the front-bias magnet and the first sensor element is sensitive to a magnetic field of the front-bias magnet that is aligned with the radial axis.

Abstract: In one aspect, an angle sensor includes a first linear sensor and a second linear sensor. A first magnetic-field direction of a target magnet measured by the first linear sensor is substantially equal to a second magnetic-field direction of the target magnet measured by the second linear sensor. The first linear sensor, the second linear sensor and the target magnet are on an axis. The angle sensor determines an angle of a magnetic field.

Abstract: A system includes a controller, a magnetic field sensor, and a signal conditioning circuit. The magnetic field sensor is configured to sense a position of a motor and provide an output signal. The signal conditioning circuit is configured to produce an AC-coupled output signal from the output signal. The AC-coupled output signal is an input to the controller. The controller is configured to process the AC-coupled output signal.

Abstract: The present subject matter relates to devices, systems, and methods for identifying the position of a movable component. A position sensor system is provided in which a Hall effect sensor is coupled to a fixed housing, and a plurality of magnets is coupled to a movable component that is movable to a sensing position at which the plurality of magnets is proximal to the Hall effect sensor. In this configuration, the plurality of magnets is arranged to produce an aggregate magnetic field having a flux concentration directed toward the Hall effect sensor when the plurality of magnets is in the sensing position.

Abstract: A method of determining an orientation of a magnet which is pivotable about a reference position having a predefined position relative to a silicon substrate, includes: providing a silicon substrate; determining a first/second magnetic field gradient along a first/second direction; determining a first/second angle based on said first/second magnetic field gradient and a first/second correction value. A sensor device configured for performing this method. A sensor system includes such sensor device and a magnet, optionally connected to a joystick.

Abstract: A multiport current sensor is disclosed for measuring current. The sensor may include multiple CT or Rogowski coil segments or sections arranged in a closed loop configuration around a monitored phase line or other electrical conductor. An adjacent phase rejection circuit compares the magnitudes and/or phase angles of the voltage signals from the multiple coil segments. The adjacent phase rejection circuit may detect if a fault in an adjacent phase line or other electrical conductor is affecting the output signal of the current sensor by more than a threshold amount. The adjacent phase rejection circuit may additionally or alternatively indicate whether the measured values are valid for detecting a fault on the monitored phase line or other electrical conductor.

Abstract: Slotted dipole antennas for use in an antenna system on a drill collar segment is presented. Dipoles may be placed in slots on the drill collar segment. A dipole consists of a ferrite rod with electric wires placed above and below the ferrite rod. Wires may be connected such that wire current forms a loop around the ferrite rod. When a group of slots are used for an antenna, wire holes are constructed between slots. Effectively a single wire may be used to go above all ferrite rods in the group and then turn to go below all the ferrite rods. Two wire segments are in a wire hole connecting two adjacent slots. Currents in the two segments are the same in magnitudes and flow in opposite directions. There is no net current in wires in a wire hole.

Abstract: A drive system for a switch can include a control module configured to control, directly or indirectly, a state of a switch between a first state and a second state. The drive system can also include a transition timing system configured to measure a transition time that the switch is in transit between the first state and the second state.

Abstract: A magnetic sensing device including a substrate having a supporting surface on which a first sensing area, a third sensing area, and a second sensing area are consecutively arranged in a direction of movement. The first, the second, and the third sensing areas are provided with a first midline, a second midline, and a third midline in the direction of movement, respectively. The first and second midlines are symmetrical with respect to the third midline. The first and second sensing areas are jointly configured to output a first output signal. The third sensing area is configured to output a second output signal. A phase difference between the first and second output signals is 90 degrees, and the first and second output signals are jointly configured to determine the distance or the speed or the angle of movement and the direction of movement of the relative motion.

Abstract: The present invention concerns a sensor device (1) comprising a transducer (3) adapted to generate a magnetic field (MF), the sensor device (1) is configured to measure a beating gap (G) between a first (5) and a second (7) refining disc of a refiner apparatus (9) and is configured to be mounted in the first refining disc (5), the sensor device (1) comprises a magnetic pole (13), a coil assembly (15) and a measuring head (11?), which measuring head (11?) is configured to be set in calibration position relative to the second refining disc (7) for calibration of the sensor device (1). The measuring head (11?) comprises an outer end (10?) made of a non-magnetic material configured to be positioned in abutment with the second refining disc (7) in a calibration sequence. The present invention also concerns a method of calibration of said sensor device (1).

Abstract: A magnetic sensor includes a soft magnetic body having a first end surface and a second end surface located on opposite sides, a first MR element located near the first end surface, a second MR element located near the second end surface, and a first lead that electrically connects the first MR element and the second MR element and includes a portion overlapping the soft magnetic body when observed in a second direction orthogonal to a first direction in which the first and second MR elements are arranged.

Abstract: A position sensor including a supporting structure bearing two elements capable of translational movement relative to one another in a first direction, namely a magnetic-field-emitting element for generating a magnetic field, and a magnetic-field-detecting element. The magnetic-field-emitting element is arranged in such a way that an orientation of the magnetic field, which orientation is considered in a first plane orthogonal to the first direction, changes as a function of a distance separating the first plane from a first end of the magnetic-field-emitting element. The magnetic-field-detecting element is configured to produce a signal indicative of the orientation of the magnetic field. A brake and an aircraft are equipped with the position sensor.

Abstract: A method for initializing a Wiegand-sensor-based rotary angle measuring system. The method includes mounting the Wiegand-sensor-based rotary angle measuring system at a place of use, and feeding an initialization alternating current into a sensor coil which, after the mounting, radially surrounds a Wiegand wire. The initialization alternating current is provided with a current direction which alternates with time and with a current amplitude which decreases with time.

Abstract: For non-destructively measuring the yield strength of a metallic member using magnetic incremental permeability, a quasi-static excitation magnetic field is applied to two points of the metallic member, while a small alternating magnetic field generated by a transmitting coil is applied to the metal member. Intensity of the quasi-static excitation magnetic field applied to the metallic member is measured using a Hall sensor. The magnetic field induced by the magnetized metallic member is detected using a sensing coil. Using signals from the Hall sensor and the sensing coil, a reversible permeability (MIP) of the metallic member is obtained. A grain size of the metallic member is obtained from the relationship between the reversible permeability and the grain size of the metallic member, and the yield strength of the metallic member is calculated using the grain size. The grain size and yield strength of the metallic member can be measured non-destructively.

Abstract: A position detecting switch detects the position of a movable body that is capable of moving in a predetermined direction, based on a magnet attached to the movable body. The position detecting switch is equipped with a magnetic sensor that detects the magnetism of the magnet, and outputs a detected value in accordance with the magnetism, a determination unit that determines whether or not the detected value lies within a predetermined range, and a setting unit that sets the predetermined range centrally around the detected value at a specified position which is a position of the movable body specified by an operator.