Abstract: A reception compensation apparatus based on airborne transient electromagnetic method is disclosed, and includes a receiver coil, a transmitter coil, at least one compensation coil, and at least one compensation magnetic core, where the transmitter coil is disposed around a periphery of the receiver coil. The at least one compensation magnetic core is disposed around an outer surface of the transmitter coil. The at least one compensation coil is disposed around an outer surface of the compensation magnetic core.

Abstract: The present disclosure relates to a magnetic field sensor, in particular an angle sensor, including a magnetoresistive sensor component and a spin-orbit torque, SOT, sensor component.

Abstract: The invention provides an apparatus (10, 14) for detecting objects that are submerged in a body of water or at least partly buried in a bed of the body of water. According to a first aspect, the apparatus comprises a support structure (16) adapted to be mounted to a remotely operated towed vehicle, ROTV (12), a plurality of acoustic transducers (27.x) mounted to the support structure (16), and at least one magnetic sensor (28.x) mounted to the support structure (16). According to a second aspect, the apparatus comprises a remotely operated towed vehicle, ROTV (12), the ROTV (12) comprising at least one control flap (38.x) operable to control a sub-surface depth of the ROTV (12) when the ROTV (12) is towed in the body of water, a support structure (16) mounted to the ROTV (12), and a plurality of acoustic transducers (27.x) mounted to the support structure (16). The invention further provides a method, a computer system, and a machine-readable medium.

Abstract: The present invention relates to a method for realizing the measuring slip of membrane probe, wherein: an elastomer layer is placed between the rigid acting surface of the membrane probe head and the membrane on which the probe is arranged; on the axial plane of the probe, the elastomer layer takes any axial line passing through the probe as a boundary line, and there is a difference between the thickness of one side and thickness of the other side, so that the probe can deflect during the test, resulting in the measuring slip to penetrate or push away the surface oxide of the tested chip and achieve more stable contact.

Abstract: A magneto-resistive element includes a first element section including a first unit element and a second element section including a second unit element. The first element section is connected to the second element section in series. The first unit element includes a first reference layer with a magnetization that is fixed in an in-plane direction, and a first free layer including a vortex magnetization. The second unit element includes a second reference layer with a magnetization that is fixed in an in-plane direction, and a second free layer including a vortex magnetization. A direction of the fixed magnetization of the first reference layer is opposite to that of the second reference layer.

Abstract: An over the air, OTA, test chamber for testing at least one device under test, DUT, provided within the OTA test chamber which includes a thermal bubble component adapted to receive the device under test, DUT, comprising an air inlet adapted to supply air into the thermal bubble component, an air outlet adapted to remove air from the thermal bubble component and an airstream diffusor provided at the air inlet and adapted to diffuse an airstream supplied by the air inlet within the thermal bubble component.

Abstract: The subject matter of this specification can be embodied in, among other things, a fluid flow conditioning apparatus that includes a linear fluid conduit configured to define a linear fluid flow path, a fluid inlet defining an inlet fluid flow path that is non-parallel to the linear fluid flow path, a first fluid flow conditioner having a first conditioner configured to receive fluid flow along the inlet fluid flow path, condition fluid flow, and redirect conditioned fluid flow away from the inlet fluid flow path along the linear fluid flow path along the major axis, a second fluid flow conditioner configured to receive fluid flow from the linear fluid flow path along the major axis, redirect fluid flow away from the linear fluid flow path along an outlet fluid flow path that is non-parallel to the linear fluid flow path, and condition fluid flow, and a fluid outlet.

Abstract: A test apparatus tests a wafer under test on which devices under test each including magnetoresistive memory or a magnetic sensor are formed. In a test process, the wafer under test is mounted on a stage. In the test process, a magnetic field application apparatus applies a magnetic field BEX to the wafer under test. A test probe card is used in the test process. Multiple magnetization detection units are formed on a diagnostic wafer. In a diagnostic process of the test apparatus, the diagnostic wafer is mounted on the stage instead of the wafer under test. Each magnetization detection unit is capable of measuring a magnetic field BEX generated by the magnetic field application apparatus. In the diagnostic process, the diagnostic probe card is used instead of the test probe card.

Abstract: A fault processing method for a displacement sensor includes: receiving a plurality of detected signals from a plurality of detecting probes and a given signal of a spare probe, wherein the detecting probes are configured to detect a displacement value of a rotation shaft of a magnetic levitation motor to obtain the detected signals, and the spare probe is configured to replace a faulty probe among the plurality of detecting probes; determining whether there is a faulty probe among the plurality of detecting probes based on the plurality of detected signals and the given signal; and connecting the given signal of the spare probe to the faulty probe corresponding to a case that a determination result is yes.

Abstract: A sensor for a magnetic measuring device for detecting a rotational or translational movement of a body includes a permanent magnet which is connected to the body for conjoint rotation and which moves with the body. The sensor is fastened to a body by a method, and the sensor can be used in a magnetic measuring device for contactlessly detecting a rotational movement of a body. Plastic-bonded permanent magnet material is injection-molded onto the body, acting as an extension thereof, and forms a free end of the body acting as a permanent magnet.

Abstract: Devices, systems and methods for magnetic field coupling, as described herein, optimize magnetic coupling between transducers generating and detecting quasistatic magnetic fields by translating the generated and detected magnetic fields into a common frame of reference, such as the Earth's gravitational field. In general, a receiving device has knowledge of the strength and direction of a quasistatic magnetic field generated by a transmitting device, which allows the generated magnetic field to be measured and interpreted by the receiving device in the context of the common frame of reference. Such devices, systems, and methods may use magnetic coupling, for example, for proximity detection and/or for communication between devices. Magnetic coupling may be used for proximity detection, for example, by detecting a magnetic field having a defined magnetic field range and/or by measuring magnetic field strength and/or direction and determining distance and/or location.

Abstract: The present disclosure is related to a method and device for measuring a distance and a storage medium. The method for measuring the distance includes determining a distance between a first device and a second device based on a first time difference and a second time difference, where the first time difference is between a time of receiving a first detection signal by the first device and a time of receiving a second detection signal by the first device, and the second time difference is between a time of receiving the first detection signal by the second device and time of receiving the second detection signal by the second device.

Abstract: A sensor unit includes a first connection bus bar to a seventh connection bus bar connected to switch modules. The sensor unit includes a base integrally molding the first connection bus bar to the seventh connection bus bar. The sensor unit includes a plurality of magnetic-electric conversion units which detects current of the first connection bus bar to the seventh connection bus bar, respectively. The sensor unit includes a nut box connected to the base. The base and the nut box extends in the x-direction. A plurality of pillars, which are separated each other in the x-direction, are formed on the base. The nut box is fixed to the plurality of pillars by fixing bolts.

Abstract: The present disclosure discloses a rapid measuring device and a measuring method for permanent magnet failure temperature. The device includes a measurement system (1), an infrared thermal imager (2), a vacuum Hall probe (3) and a laser heating device (4). A permanent magnet (5) is used as a sample. These components work together to achieve rapid and accurate measurement of the failure temperature of the permanent magnet sample (5). The present disclosure uses light heating, infrared thermal imaging and surface magnetic field measurement. The heating speed is fast, the temperature measurement is accurate, and the failure temperature measurement of large permanent magnet materials can be achieved.

Abstract: Methods and apparatus for prosing a sensor IC package having first and second sets of magnetic field sensing elements and a third set of magnetic field sensing elements located between the first and second positions, wherein the first, second, and third sets of magnetic field sensing elements have a first axis of sensitivity and a second axis of sensitivity, wherein the first and second axes of sensitivity are orthogonal. The sensor IC package is positioned in relation to a target comprising a two-pole magnet and the first and second axes of sensitivity are perpendicular to an axis about which the target rotates. Differential signals are processed to determine an absolute position of the target. A first secondary angle position is generated from the first and third sets of magnetic field sensing elements.

Abstract: Some embodiments relate to a magnetoresistive sensor element comprising a magnetoresistive strip. The magnetoresistive strip includes a first linear segment, and a second linear segment arranged in series with the first linear segment. The second linear segment adjoins the first linear segment at a first inner corner corresponding to a first obtuse angle having a first magnitude. The magnetoresistive strip also includes a third linear segment arranged in series with the first and second linear segments, and a fourth linear segment arranged in series with the first, second, and third linear segments. The fourth linear segment adjoins the third linear segment at a second inner corner corresponding to a second obtuse angle having a second magnitude. Te second magnitude differs from the first magnitude.

Abstract: An inductive sensor includes a first circuit board having a sensor element configurable in a plurality of different coil configurations. The sensor element includes a transmit coil and a plurality of receive coils. The first circuit board includes interconnect points positioned at a same location on the first circuit board for each of the plurality of different coil configurations. The inductive sensor includes a second circuit board spaced apart from the first circuit board along the axial direction. The second circuit board includes processing circuitry associated with the sensor element and configurable in a plurality of different configurations. The second circuit board includes interconnect points positioned at a same location on the second circuit board for each of the configurations of the processing circuitry. Furthermore, each interconnect point on the second circuit board is aligned with a corresponding interconnect point on the first circuit board along circumferential and radial directions.

Abstract: An apparatus includes a first resonant circuit including a first coil mounted to a movable member; a second resonant circuit including a second coil facing the first coil and generating a magnetic field upon supply of an electric current and outputs a detection signal of a voltage level depending on a relative position of the second coil to a position of the first coil; and a first equivalent circuit equivalent to the second resonant circuit in a case where a distance between the first and second coils is infinite and a second equivalent circuit equivalent to the second resonant circuit in a case where the distance is zero. A processor corrects the detection signal based on an output signal output from the first equivalent circuit and an output signal output from the second equivalent circuit, and calculates, based on the corrected detection signal, a displacement amount of the movable member.

Abstract: A scanning unit for determining a relative angular position of an angular scale that is rotatable about an axis relative to the scanning unit includes a circuit board and evaluation electronics. A detector assembly is disposed in a manner that enables scanning of the angular scale. A contact carrier encloses electrical contacts for creating a plug-and-socket connection. The contact carrier has an outer wall and is mounted on the circuit board such that the electrical contacts extend in a direction having an axial component. A housing body is provided with an opening having an inner wall. A first elastic element is disposed under radial preload such that the contact carrier is centered with respect to the inner wall of the opening. The circuit board is torsionally rigidly attached to the housing body such that the circuit board is radially spaced therefrom by a first gap.

Abstract: A method of sensing a current in a conductor includes controlling a digital to analog converter output to cancel residual offset voltage in a magnetic tunnel junction device prior to sensing the current with the magnetic tunnel junction device. The method includes switching input to the magnetic tunnel junction device between a fixed voltage and an output of a digital to analog converter while switching input to a band pass filter between a lower and an upper voltage output of the magnetic tunnel junction device. The output of the digital to analog converter is modified to provide a low-amplitude unsaturated sine-wave at an output of the band pass filter, at which point changes in the output of the band pass filter are associated with the amount of current in a sensed conductor.