A system for measuring torque on a component having a residually magnetized region is provided. The system includes a torque sensor for sensing an electromagnetic characteristic of the component and transmitting a plurality of signals that are indicative of the electromagnetic characteristic. The system also includes a computer communicatively coupled to the torque sensor for receiving the signals. The computer includes a processor and a memory. The processor is programmed to determine, using the signals, that the torque sensor is affected by the residually magnetized region of the component.

A device for determining an angle of rotation and/or a torque of a rotating part, having at least one angle detector for detecting an angular position of the rotating part relative to a reference position and at least one indexer for indexing at a 360° rotation of the rotating part relative to the reference position, the angle detector having a rotor connected in a non-rotatable manner to the rotating part with a base body for attachment to the rotating part and a plurality of vanes extending radially outwardly from the base body. At least one of the vanes of the rotor have a marker detectable by means of the indexer.

A magnetically responsive member is disposed on a rotating member along the circumference of the rotating member in such a manner that the magnetically responsive member rotates together with the rotating member, and the magnetically responsive member is formed in a line-shaped pattern varying cyclically in a rotational axis direction. A stator is disposed around the rotating member in a contactless manner, and the stator includes a primary coil wound around the rotating member, and a secondary coil forming a loop pattern of a plurality of cycles along the circumference of the rotating member. As the primary coil is AC-energized, an induced AC output signal corresponding to relative positions between the line-shaped pattern of the rotating member and the loop pattern of the secondary coil, which depend on a rotational position of the rotating member, is output from the secondary coil.

A torque sensor can measure torque introduced into an upper shaft that is rotatable around a longitudinal axis and is connectable to a lower shaft via a torsion rod. A first component is connectable to the upper shaft, and a second component is connectable to the lower shaft. The components have surfaces that protrude in a longitudinal direction and at least partially overlap. A sensor coil that can generate a high-frequency alternating magnetic field is arranged on one of the surfaces of one component, and a metallic element is arranged on one of the surfaces of the other component. A torque introduced into the upper shaft causes a change in distance between the sensor coil and the metallic element. A device can measure a frequency change of the alternating magnetic field caused by the change in distance and determine the torque introduced into the upper shaft.

The invention relates to a load measurement device (12) for accurately measuring a load in a test object (14) such as, in particular, a chassis component, comprising a magnetic field generating device (18), a first magnetic field detecting device (20), a second magnetic field detecting device (22), and a measurement environment parameter acquisition device (80) for acquiring at least one measurement environment parameter in the test object (14), wherein an evaluation device (42) is configured to generate a measurement signal obtained on the basis of outputs of the first and second magnetic field detection devices (20, 22) in dependence on the at least one measurement environment parameter detected by the measurement environment parameter acquisition device (80).

A detection circuit for a magnetostrictive torque sensor is configured to detect a torque applied to a magnetostrictive material treated by shot peening. The detection circuit includes a detection coil provided around the magnetostrictive material, and a drive unit for providing alternating current excitation to the detection coil. The torque applied to the magnetostrictive material is detected based on a change in inductance of the detection coil, and the drive unit provides alternating current excitation at a frequency at which a skin effect thickness is not more than an effective depth of the shot peening.

A torque sensor can be configured to detect the positions of rotor targets relative to the position of respective receiver structures. A torque sensor can include an oscillator circuit coupled to an excitation coil. The oscillator circuit can be configured to generate a periodic voltage signal and energize the excitation coil with the periodic voltage signal. The inductive torque sensor can include a stator circuit board including receivers with receiver structures that are periodically repeated. The inductive torque sensor can include rotor targets coupled to respective rotors, the rotor targets can be configured to affect the strength of the inductive coupling between the excitation coil and the respective receivers. The inductive torque sensor can include processing circuitry configured to provide signals associated with positions of the rotor targets relative to their respective receiver structures.

Disclosed is a sensing device comprising: a stator connected to a first shaft; a first gear rotating in engagement with the stator; a second gear rotating in engagement with the first gear; a magnet coupled to the second gear; and a magnetic element disposed corresponding to the magnet, wherein one surface of the magnet disposed facing the magnetic element has an elliptical shape. Accordingly, even when the center of the magnet disposed in the second gear and the center of the magnetic element are not aligned in the axial direction and thus arranged offset, the sensing device can enhance the precision of a steering angle measurement due to the shape of the magnet.

A resin-sealed electronic component includes an electronic component main body sealed with a resin housing. The resin housing includes a pair of resin members aligned in a first direction with sandwiching a housing space housing the electronic component main body, and a sealing member including a molding resin and being molded so as to cover at least a portion of each of the pair of resin members. A portion of one resin member of the pair of resin members and a portion of the other resin member are aligned in a second direction intersecting the first direction to constitute a suppression structure that suppresses the molding resin from entering the housing space.

A torque sensor unit measures torque introduced into an upper steering shaft of a motor vehicle. The upper steering shaft can be connected to a lower steering shaft via a torsion bar. The torque sensor unit may have two inductive sensors, where a first inductive sensor can be connected to the upper steering shaft to measure the rotary position of the upper steering shaft and a second inductive sensor can be connected to the lower steering shaft to measure the rotary position of the lower steering shaft. An evaluation unit may be designed to process the signals of the two inductive sensors and to calculate the torque therefrom by means of the angle difference between the rotary positions of the two steering shafts.