Abstract: A magnetic sensor module includes an axially polarized back bias magnet having a magnet body that radially extends from an inner sidewall to an outer sidewall and a bore that defines the inner sidewall. The axially polarized back bias magnet generates a radial bias magnetic in-plane field about a magnetization axis of the axially polarized back bias magnet in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the magnetization axis and along a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a magnetic sensor including a plurality of sensor elements arranged in the sensor plane at locations where the radial bias magnetic in-plane field has the magnetic flux density of substantially zero, including at least two sensor elements being arranged on the perimeter of the zero-field closed loop.

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: An absolute position measurement system includes a multipole magnet including alternating magnetic poles extending along a multipole extension direction, the multipole magnet has a linear changing configuration relative to a linear path and produces a magnetic field having a field strength that undergoes a sinusoidal change along the linear path due to the alternating magnetic poles and a linear change along the linear path according to the linear changing configuration relative to the linear path; and a magnetic sensor configured to move along the linear path. The magnetic sensor includes a first sensor element arrangement configured to generate a first sensor signal, a second sensor element arrangement configured to generate a second sensor signal that is phase shifted with respect to the first sensor signal, and a processing circuit configured to calculate an absolute position of the magnetic sensor based on the first sensor signal and the second sensor signal.

Abstract: A magnetic sensor module includes an axially polarized back-bias magnet having a body that radially extends from a magnet center axis and a bore extending along the magnet center axis. The magnet generates a radial bias magnetic field about a magnetization axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a shim polepiece mechanically coupled to an end of the axially polarized back-bias magnet. The shim polepiece includes a second bore centered on a polepiece center axis that is aligned with the magnet center axis. The second bore extends through the shim polepiece along the polepiece center axis.

Abstract: The herein disclosed innovative concept concerns a magnetic angle sensor and a method for operating the same. The sensor includes a magnetoresistive arrangement and a magnetic source being configured to be movable relative to the magnetoresistive arrangement. The magnetoresistive arrangement includes a first magnetoresistive element configured to generate a first output signal, a second magnetoresistive element configured to generate a second output signal, and a third magnetoresistive element configured to generate a third output signal. The first, second and third magnetoresistive elements are oriented relative to each other such that they form a symmetrical geometric arrangement with equal angular distances between each other.

Abstract: A position sensor system comprises a magnetic strip extending in a readout direction and comprising magnetic poles alternating at a constant pitch along the readout direction. At least a first differential magnetoresistive sensor comprises magnetoresistive sensing elements spaced at the pitch. The magnetic poles of the magnetic strip and the first differential magnetoresistive sensor are movable with respect to each other in the readout direction.

Abstract: A magnetic sensor module includes an axially polarized back bias magnet having a magnet body that radially extends from an inner sidewall to an outer sidewall and a bore that defines the inner sidewall. The axially polarized back bias magnet generates a radial bias magnetic in-plane field about a magnetization axis of the axially polarized back bias magnet in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the magnetization axis and along a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a magnetic sensor including a plurality of sensor elements arranged in the sensor plane at locations where the radial bias magnetic in-plane field has the magnetic flux density of substantially zero, including at least two sensor elements being arranged on the perimeter of the zero-field closed loop.

Abstract: A magnetic sensor module includes an axially polarized back-bias magnet having a body that radially extends from a magnet center axis and a bore extending along the magnet center axis. The magnet generates a radial bias magnetic field about a magnetization axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a shim polepiece mechanically coupled to an end of the axially polarized back-bias magnet. The shim polepiece includes a second bore centered on a polepiece center axis that is aligned with the magnet center axis. The second bore extends through the shim polepiece along the polepiece center axis.

Abstract: The innovative concept described herein relates to a magnetic angle sensor system having a rotatable shaft, a permanent magnet coupled to the rotatable shaft, and a magnetic field sensor arranged opposite the permanent magnet, wherein the magnetic field sensor is configured to detect a magnetic field prevailing in its detection region. The magnetic angle sensor system comprises means for reducing and/or compensating for an inhomogeneous stray field component of a per se homogeneous external magnetic stray field.

Abstract: A magnetic sensor module includes an axially polarized back bias magnet having a body that radially extends from an inner sidewall to an outer sidewall and a bore that defines the inner sidewall. The magnet generates a radially symmetric bias magnetic in-plane field about a center axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the center axis and at a circumference of a zero-field circle located in the sensor plane, where the circumference of the zero-field circle vertically overlaps with the magnet body in a plan view. The magnetic sensor module includes a magnetic sensor including at least three sensor elements arranged in the sensor plane at locations where the radially symmetric bias magnetic in-plane field has a magnetic flux density of substantially zero, including at least two sensor elements being arranged on the circumference of the zero-field circle.

Abstract: A magnetic sensor module includes an axially polarized back-bias magnet having a body that radially extends from a magnet center axis and a bore extending along the magnet center axis. The magnet generates a radial bias magnetic in-plane field about a magnetization axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the magnetization axis and at a perimeter of a zero-field closed loop located in the sensor plane. The magnetic sensor module includes a shim polepiece mechanically coupled to an end of the axially polarized back-bias magnet. The shim polepiece includes a second bore centered on a polepiece center axis that is aligned with the magnet center axis. The second bore extends through the shim polepiece along the polepiece center axis and is congruent with the first bore.

Abstract: A sensor device comprises an electrically conductive chip carrier, wherein the chip carrier comprises an auxiliary structure, wherein the auxiliary structure comprises a first precalibration current terminal and a second precalibration current terminal, a magnetic field sensor chip arranged on a mounting surface of the chip carrier, wherein the magnetic field sensor chip comprises a sensor element, wherein the shape of the auxiliary structure is embodied such that an electrical precalibration current flowing from the first precalibration current terminal to the second precalibration current terminal through the auxiliary structure induces a predefined precalibration magnetic field at the location of the sensor element, wherein during measurement operation of the precalibrated sensor device, no precalibration current flows between the first precalibration current terminal and the second precalibration current terminal.

Abstract: The described techniques address the issues associated with conventional OoS sensor systems by mounting a magnetized ring onto a rotatable shaft for which an angular position is to be measured. Specific sensor configurations are disclosed regarding each magnetic sensor's position with respect to one another and each magnetic sensor's position with respect to the rotatable shaft. The described configurations provide a stray-field robust solution due to the specific magnetic sensor configurations such that, when stray fields are present, pairs of magnetic sensors are exposed to essentially the same stray field components, which thus cancel one another. Thus, the angle of the rotatable shaft as a function of the measured strength of the magnetic field components at any time instant can be calculated even in the present of stray magnetic fields.

Abstract: A magnetic sensor module includes an axially polarized back bias magnet having a body that radially extends from an inner sidewall to an outer sidewall and a bore that defines the inner sidewall. The magnet generates a radially symmetric bias magnetic in-plane field about a center axis in a sensor plane. The magnetic field has a magnetic flux density of substantially zero along the extension of the center axis and at a circumference of a zero-field circle located in the sensor plane, where the circumference of the zero-field circle vertically overlaps with the magnet body in a plan view. The magnetic sensor module includes a magnetic sensor including at least three sensor elements arranged in the sensor plane at locations where the radially symmetric bias magnetic in-plane field has a magnetic flux density of substantially zero, including at least two sensor elements being arranged on the circumference of the zero-field circle.

Abstract: A sensor device comprises a magnet having a magnetization in a first direction. Furthermore, the sensor device comprises a differential magnetic field sensor arranged on the magnet and having a first sensor element and a second sensor element, wherein the sensor elements are spaced apart in a second direction perpendicular to the first direction. The first sensor element and the second sensor element are designed to detect a magnetic field component in a third direction perpendicular to the first direction and perpendicular to the second direction.

Abstract: A sensor device includes a magnetic field sensor component, including a chip carrier having a connection conductor and a magnetic field sensor chip arranged on the chip carrier, and a magnet, wherein the magnetic field sensor component is arranged on a mounting surface of the magnet, wherein the mounting surface has an elevation and the connection conductor is bent around the elevation.

Abstract: The described techniques address the issues associated with conventional OoS sensor systems by mounting a magnetized ring onto a rotatable shaft for which an angular position is to be measured. Specific sensor configurations are disclosed regarding each magnetic sensor's position with respect to one another and each magnetic sensor's position with respect to the rotatable shaft. The described configurations provide a stray-field robust solution due to the specific magnetic sensor configurations such that, when stray fields are present, pairs of magnetic sensors are exposed to essentially the same stray field components, which thus cancel one another. Thus, the angle of the rotatable shaft as a function of the measured strength of the magnetic field components at any time instant can be calculated even in the present of stray magnetic fields.

Abstract: An angle sensor for detecting a rotation angle of a shaft, on the axial end of which a permanent magnet is fitted. The permanent magnet has a north pole and a south pole that lie opposite one another across a rotation axis of the shaft. A sensor arrangement includes at least four sensor elements that are arranged with equidistant angles between them on a sensor element circle. The ferromagnetic element is arranged concentrically with a center of the sensor element circle and, when viewed in the direction of the midaxis of the sensor element circle, is point-symmetrical with respect to the center. The angle sensor is arranged relative to the axial end of the shaft such that the rotation axis of the shaft is substantially concentric with the center of the sensor element circle and the sensor arrangement is arranged between the permanent magnet and the ferromagnetic element.

Abstract: A magnetic sensor device for determining a rotation speed, a direction of rotation, and/or a rotation angle of a magnetic component rotating about a rotation axis is provided. The magnetic sensor device includes a magnet being rotationally symmetrical with respect to a symmetry axis, wherein a recess is formed within the magnet along the symmetry axis. Further, the magnetic sensor device includes a first magnetic sensor element arranged within the recess and on the symmetry axis, and a second magnetic sensor element arranged within the recess and on the symmetry axis. The magnetic sensor device additionally includes an integrated circuit arranged within the recess and configured to determine the rotation speed, the direction of rotation, and/or the rotation angle of the magnetic component based on a first output signal of the first magnetic sensor element and a second output signal of the second magnetic sensor element.

Abstract: A sensor device comprises an electrically conductive chip carrier, wherein the chip carrier comprises an auxiliary structure, wherein the auxiliary structure comprises a first precalibration current terminal and a second precalibration current terminal, a magnetic field sensor chip arranged on a mounting surface of the chip carrier, wherein the magnetic field sensor chip comprises a sensor element, wherein the shape of the auxiliary structure is embodied such that an electrical precalibration current flowing from the first precalibration current terminal to the second precalibration current terminal through the auxiliary structure induces a predefined precalibration magnetic field at the location of the sensor element, wherein during measurement operation of the precalibrated sensor device, no precalibration current flows between the first precalibration current terminal and the second precalibration current terminal.