Abstract: To reduce a hysteresis error, the invention provides a load measurement method (12) for measuring a load in a test object (14), comprising: a) generating a magnetic field in the test object (14) by means of at least one magnetic field generating coil (Lg) to which a periodically alternating current is applied; b) detecting a magnetic field parameter which changes on the basis of a load in the test object (14), using at least one magnetic field detecting device, in order to generate a magnetic field parameter signal (51) which changes periodically according to the periodically generated magnetic field, characterized by: c) detecting the hysteresis-to-signal ratio of the magnetic field parameter signal (51) over time within one period; and d) disregarding magnetic field parameter signal values from at least one predetermined timespan within each period in which a maximum hysteresis-to-signal ratio occurs.

Abstract: A torque transmitter for a torque sensor for measuring a torque on a shaft includes a carrier plate that includes a plurality of sensor element carrier plate regions, on each of which at least one sensor element for recording magnetic field changes is arranged, and an enclosure region formed in a substantially annular shape to enclose the shaft around a circumference of the shaft. The plurality of sensor element carrier plate regions are perpendicularly connected to the enclosure region and arranged radially within the enclosure region by being spaced apart along a circumferential direction around the circumference of the shaft.

Abstract: To improve the output signal quality of a load measurement by means of active magnetization, the invention provides a load measurement method for measuring a mechanical load on a test object (14), comprising: a) generating and applying a magnetic field to the test object (14); b) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a first magnetic field detection device (20) to generate a first measurement signal (U1, UAB), c) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a second magnetic field detection device (22) to generate a second measurement signal (U1, UAB), d) computationally determining a third measurement signal (UBT) from the first measurement signal (U1, UAB) and the second measurement signal (U2, UAT), and preferably comprising the steps of e) forming a difference from one (U2, UAT) of the first and the second measurement signals and the c

Abstract: A torque transmitter for a torque sensor for measuring a torque on a shaft includes a carrier plate that includes a plurality of sensor element carrier plate regions, on each of which at least one sensor element for recording magnetic field changes is arranged, and an enclosure region formed in a substantially annular shape to enclose the shaft around a circumference of the shaft. The plurality of sensor element carrier plate regions are perpendicularly connected to the enclosure region and arranged radially within the enclosure region by being spaced apart along a circumferential direction around the circumference of the shaft.

Abstract: In order to inexpensively measure torque on a shaft such that the measurement is as independent as possible from distance changes or material inconsistencies of the shaft around the circumference thereof, the invention provides a torque transmitter for a torque sensor for measuring a torque on a shaft, having a carrier plate that has a plurality of sensor element carrier plate regions, on each of which at least one sensor element for recording magnetic field changes, caused by the magnetoelastic effect, is arranged, and at least one enclosure region that is designed to at least partly enclose the shaft around the circumference of the shaft, wherein at least one flexible connection region is provided by way of which at least one of the sensor element carrier plate regions is able to be pivoted relative to another sensor element carrier plate region or relative to the at least one enclosure region.

Abstract: 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).

Abstract: The invention relates to an arrangement (100) for measuring a mechanical load on a test object, with the detection of changes in the magnetic field, said arrangement comprising a test object (14), which extends in a longitudinal direction L, and at least one sensor element (18) comprising a magnetic field generation device (20) for generating a magnetic field in the test object (14) and a magnetic field detection device (22) for measuring a change in the magnetic field in the test object (14). The sensor element (18) is arranged on a measurement surface (15) of the test object (14), at least one directional component of said measurement surface extending radially and/or transversely to the longitudinal direction L of the test object (14). A magnetic field is generated in the test object (14) and a change in the magnetic field in the test object (14) is measured on the measurement surface (15). The load measured is, in particular, a torque.

Abstract: Disclosed is a roll stabilizer (1) for a motor vehicle, comprising a sensor unit (10), which operates according to the principle of inverse magnetostriction, for acquiring torque (M) acting between stabilizer portions (6a, 6b), characterized in that the sensor unit (10) includes a magnetic field generation device, which preferably comprises a transmitter coil (12) and is used for magnetizing a measurement element (4; 6a) affected by torsional stress during operation, and a plurality of magnetic field detection devices, each of which preferably comprises a receiver coil (13) and which are used for acquiring parameters of the magnetic field of the measurement element (4; 6a). Also disclosed is a corresponding sensor unit (10) for a roll stabilizer (1) of the aforementioned type.

Abstract: To reduce a hysteresis error, the invention provides a load measurement method (12) for measuring a load in a test object (14), comprising: a) generating a magnetic field in the test object (14) by means of at least one magnetic field generating coil (Lg) to which a periodically alternating current is applied; b) detecting a magnetic field parameter which changes on the basis of a load in the test object (14), using at least one magnetic field detecting device, in order to generate a magnetic field parameter signal (51) which changes periodically according to the periodically generated magnetic field, characterized by: c) detecting the hysteresis-to-signal ratio of the magnetic field parameter signal (51) over time within one period; and d) disregarding magnetic field parameter signal values from at least one predetermined timespan within each period in which a maximum hysteresis-to-signal ratio occurs.

Abstract: The invention provides a pressure sensor (10) that can be produced at low cost, operates more accurately and resists to high burst pressures. The pressure sensor (10) comprises at least one membrane (12) and a magneto-elastic detection device (14) for magneto-elastically detecting mechanical stress caused by pressurization.

Abstract: In order to inexpensively measure torque on a shaft such that the measurement is as independent as possible from distance changes or material inconsistencies of the shaft around the circumference thereof, the invention provides a torque transmitter (10) for a torque sensor (12) for measuring a torque on a shaft (14), having a carrier plate (34) that has a plurality of sensor element carrier plate regions (38), on each of which at least one sensor element (18) for recording magnetic field changes, caused by the magnetoelastic effect, is arranged, and at least one enclosure region (16) that is designed to at least partly enclose the shaft (14) around the circumference of the shaft (14), wherein at least one flexible connection region (40) is provided by way of which at least one of the sensor element carrier plate regions (38) is able to be pivoted relative to another sensor element carrier plate region (38) or relative to the at least one enclosure region (16).

Abstract: To improve the output signal quality of a load measurement by means of active magnetization, the invention provides a load measurement method for measuring a mechanical load on a test object (14), comprising: a) generating and applying a magnetic field to the test object (14); b) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a first magnetic field detection device (20) to generate a first measurement signal (U1, UAB), c) detecting a magnetic field changed by the test object (14) as a result of a mechanical load on the test object (14) by means of a second magnetic field detection device (22) to generate a second measurement signal (U1, UAB), d) computationally determining a third measurement signal (UBT) from the first measurement signal (U1, UAB) and the second measurement signal (U2, UAT), and preferably comprising the steps of e) forming a difference from one (U2, UAT) of the first and the second measurement signals and t

Abstract: In order to enable practical suitability of a force or torque sensor and usability for a variety of applications in conjunction with cost-effective production, the invention provides a sensor head (10) for a magnetoelastic force or torque sensor for measuring a force or a torque in a ferromagnetic body (9), comprising: a magnetic field generating unit (14) for generating a magnetic field in the ferromagnetic body (9) and a magnetic field measuring unit (16) for measuring a magnetic field change in the ferromagnetic body (9), wherein the magnetic field generating unit (14) has an excitation coils (18) and a soft-magnetic excitation flux amplifying element (20), wherein the magnetic field measuring unit (16) has a plurality of measurement coil (22) with a soft-magnetic measurement flux amplifying element (24), wherein at least the excitation coil (18) and the measurement coils (22, 22a-22d) are integrated in a common integrated component, such as, in particular, a printed circuit board element (26) and/or MEMS

Abstract: The invention provides a pressure sensor (10) that can be produced at low cost, operates more accurately and resists to high burst pressures. The pressure sensor (10) comprises at least one membrane (12) and a magneto-elastic detection device (14) for magneto-elastically detecting mechanical stress caused by pressurization.

Abstract: The invention relates to a torque regulating device (20) for regulating the output power and/or the torque of an electric drive (10) having an electric motor (12) with a stator and a rotor and preferably an output shaft (14) connected to the rotor for joint rotation. In order to enable a more accurate regulation with, at the same time, a possibility for implementing an improved safety monitoring of the electric drive (14), there are provided a torque sensor (26) for measuring a torque acting between the stator and the rotor, in particular by measuring on the output shaft (14), and a control system (24) which is connected to the torque sensor (26) and is configured to control the electric motor (12) in accordance with the torque measured by the torque sensor (26). Further, a corresponding regulating method and an advantageous torque sensor assembly for use in the device and in the method are proposed.

Abstract: In a method for manufacturing a sensor chip a spacer (3) is arranged at the front side (11) of a substrate (1) at which front side (11) a sensing element (2) is arranged, too. Holes (14) are etched for building vias (15) extending through the substrate (1) between the front side (11) of the substrate (1) and its back side (12). After etching, the holes (14) are filled with conductive material to complete the vias (15). The spacer (3) provides protection to the sensing element (2) and the sensing chip throughout the manufacturing process.

Abstract: The present idea refers to a needle head, its use in a probe arrangement, and a method for electrically contacting multiple electronic components. The needle head comprises a body with a lower surface, needle electrodes emerging from the lower surface, and multiple outlets arranged in the lower surface. A channel is arranged between an inlet in the body and the outlets for conveying a medium from the inlet to the outlets. By this means, electronic components arranged in close distance under the lower surface of the needle head are directly exposed to the medium which provides a test environment during a test of the electronic components.

Abstract: In a method for manufacturing a sensor chip a spacer (3) is arranged at the front side (11) of a substrate (1) at which front side (11) a sensing element (2) is arranged, too. Holes (14) are etched for building vias (15) extending through the substrate (1) between the front side (11) of the substrate (1) and its back side (12). After etching, the holes (14) are filled with conductive material to complete the vias (15). The spacer (3) provides protection to the sensing element (2) and the sensing chip throughout the manufacturing process.

Abstract: A relative humidity of the environment of a humidity sensor is measured by the humidity sensor twice at different temperatures. For both measurements, a corresponding value based on a saturated vapour pressure at the subject temperature is calculated. The two calculated values derived are then evaluated. The evaluation result allows for a conclusion if the humidity sensor may be impaired in its capabilities of measuring humidity.

Abstract: The present idea refers to a needle head, its use in a probe arrangement, and a method for electrically contacting multiple electronic components. The needle head comprises a body with a lower surface, needle electrodes emerging from the lower surface, and multiple outlets arranged in the lower surface. A channel is arranged between an inlet in the body and the outlets for conveying a medium from the inlet to the outlets. By this means, electronic components arranged in close distance under the lower surface of the needle head are directly exposed to the medium which provides a test environment during a test of the electronic components.