Abstract: A torque sensor assembly an engine comprising: a transducer (1100) including: a central disc (1110); and an outer rim (1160) coupled to the central disc (1110); and at least one sensing element (1210) spaced from the transducer (1100) and configured to determine an amount of torque exerted on the central disc (1110) by sensing a magnetic flux passing through the central disc (1110). There is also a housing (1200) which comprises the sensing element (1210). The central disc (1110) and the outer rim (1160) are assembled in a way that magneto-related stress to the central disc (1110) is avoided.

Abstract: A device compensates for the an influence of a magnetic field gradient which may be generated due to a component geometry of a component (1). The device includes at least two magnetic field sensors (17, 18) which are arranged outside of the magnetic balance of the ferromagnetic component (1). The at least two magnetic field sensors (17, 18) each have a differing sensitivity. One of the magnetic field sensors (17, 18) is exposed to the influence of the magnetic field gradient to a greater extent compared to the other magnetic field sensor due to its spatial arrangement relative to the ferromagnetic component (1). The one magnetic field sensor may have a sensitivity lower than the other magnetic field sensor.

Abstract: A sensor is configured to detect a tensile, compressive and/or bending forces acting on a carrier (1, 1?) of the sensor. The carrier (1,1?) has at least one planar magnetizable surface (2). The sensor (13) comprises at least two sensor coils (12, 15) which are arranged at a predetermined angle to a longitudinal axis (14) of the carrier (1, 1?). The sensor (13) may be positioned on either side of the carrier (1, 1?). The sensor (13) is capable of detecting changes of the magnetisation due to tensile, compressive and/or bending forces acting on the carrier (1, 1?).

Abstract: A device for determining an external magnetic influence has a component comprising ferromagnetic material and a magnetizable region comprising at least three opposing magnetic tracks. The at least three magnetic opposing magnetic tracks are magnetizable in opposite directions, form at least two groups, and are arranged axially relative to the component. A first magnetic field sensor for emitting a signal is arranged radially to the component and assigned to the first group. A second magnetic field sensor for emitting a signal is arranged radially to the component and assigned to the second group. Redundant magnetic field sensors, each configured for emitting a signal, may be arranged radially in relation to the component for each of the first and second groups. The signals of the first and the second sensors can be set in relation to each other and in relation to the signals of the redundant first and second sensors.

Abstract: A magnetoelastic torque sensor system (10) for a drive train (12) is described which comprises a primary sensor unit (14) having at least one magnetoelastic portion (40) formed by a magnetoelastic material for reacting on an occurring stress due to torque generated by an engine (20), particularly torque contribution of an individual cylinder (22) of an engine (20). The magnetoelastic material is configured to generate a magnetic field and/or alternate an already existing magnetic field in response to the stress. The magnetoelastic torque sensor system (10) also comprises a secondary sensor unit (16) having at least one magnetic sensitive part (18), in particular a fluxgate, which measures the generated magnetic field or the alternating magnetic field of the magnetoelastic portion (40).

Abstract: A magneto elastic sensor having a longitudinally extending shaft like member which is subject to a load, is provided. A magneto-elastically active region is directly or indirectly attached to or forming a part of the member in such a manner that the mechanic stress is transmitted to the active region. A magnetically polarized region of the active region becomes increasingly helically shaped as the application stress increases. A magnetic field sensor means is arranged approximate the at least one magneto elastically region for outputting a signal corresponding to a stress induced magnetic flux emanating from the magnetically polarized region. The magnetic sensor means is configured for determination of a shear stress and/or of a tensile or compressive stress. In particular, the sensor means comprises at least one direction sensitive magnetic field sensor, which is arranged having a predetermined and fixed spatial coordination with the member.

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

Abstract: A freewheel hub and a bicycle, pedelec, fast pedelec or e-bike comprising this freewheel hub is provided. The freewheel hub comprises a rotating hub shell for carrying a free running wheel. Torque is coupled to the rotating hub shell via a torque transmitting member. At least one magneto-elastically active region is directly or indirectly attached to or forms a part of the torque transmitting member in such a manner that the applied torque is transmitted to the active region comprising at least one magnetically polarized region. The magnetic polarization becomes increasingly helically shaped as the applied torque increases. A magneto-elastic sensor means having at least one magnetic field sensor is arranged proximate to the at least one magneto-elastically active region for outputting a signal corresponding to a torque-induced magnetic flux emanating from the magnetically polarized region.

Abstract: A magnetization arrangement includes an inner element having an outer surface, an outer element having an inner surface, a connecting device, and a magnetic field measuring device. At least one element of the inner and outer element has a magnetizable area. The magnetic field measuring device is designed to measure a magnetic field generated by the magnetized magnetizable area. The connecting device joins the inner surface of the outer element and the outer surface of the inner element non-positively in such a way that a force acting on the magnetic sensor device can be transmitted in a defined manner between the outer element and the inner element.