Abstract: A method for initializing a Wiegand-sensor-based rotary angle measuring system. The method includes mounting the Wiegand-sensor-based rotary angle measuring system at a place of use, and feeding an initialization alternating current into a sensor coil which, after the mounting, radially surrounds a Wiegand wire. The initialization alternating current is provided with a current direction which alternates with time and with a current amplitude which decreases with time.

Abstract: A sensor device includes an excitation magnet which generates an alternating excitation magnetic field, an energy generator having a pulse wire module in which electric energy pulses are generatable via the alternating excitation magnetic field, at least one sensor element which senses a physical variable and which provides a sensor signal, an evaluation unit which evaluates the sensor signal, and a wireless data interface which is connected to the evaluation unit via a data connection. The at least one sensor element and the evaluation unit are each electrically connected to the energy generator and are suppliable with an electric energy thereby.

Abstract: A capacitive rotary angle measuring system for detecting a rotary movement of a shaft includes a sensor unit, a carrier signal generator, an evaluation unit, and a carrier signal adaptation unit. The sensor unit includes a transmitting electrode arrangement and a receiving electrode arrangement which are capacitively coupled together, and a coupling device which co-rotates with the shaft and which varies an electric capacity between the receiving and the transmitting electrode arrangement based on a rotational position of the coupling device. The carrier signal generator is electrically connected to the transmitting electrode arrangement and generates an electrical carrier signal. The evaluation unit is electrically connected to the receiving electrode arrangement and senses an electric measurement signal generated at the receiving electrode arrangement and determines a current rotary angle measurement value.

Abstract: A magnetic-field sensor device includes at least two impulse wires, a coil assembly which radially surrounds the at least two impulse wires, the coil assembly defining a sensor element and a feedback element which generates an auxiliary magnetic field, an energy storage which is electrically connected to the coil assembly, a switching element which is electrically connected to the energy storage and to the feedback element, and a control unit which electrically controls the switching element.

Abstract: A calibration apparatus for a rotational angle measuring system includes a measuring system shaft and a measuring system housing. The calibration apparatus includes a shaft holding device which, in a calibration position, rotates about an axis of rotation and is co-rotatably connected to the measuring system shaft, and, in a load position, is decoupled from the measuring system shaft, a rotationally static housing holding device which, in the calibration position, is co-rotatably connected to the measuring system housing, and, in the load position, is decoupled from the measuring system housing, and a drive motor which drives the shaft holding device. In the calibration position, the shaft holding device has clamping jaws which are pressable onto the radial outer side of the measuring system shaft, and/or, the rotationally static housing holding apparatus has movable pistons which are pressable onto the radial outer side of the measuring system housing.

Abstract: A method for calibrating a rotary encoder for capturing rotational angle position of a machine shaft. The rotary encoder includes an exciter unit which is rotationally fixed to the machine shaft, and a stationary sensor unit which interacts therewith. The method includes rotating the machine shaft to perform a rotational movement at a predefined rotational speed at a first sensor temperature, capturing a first position measured value at a first predefined rotational angle position at the first sensor temperature, heating or cooling the sensor unit to a second sensor temperature, capturing a second position measured value at the first predefined rotational angle position at the second sensor temperature, determining a first deviation between at least the second position measured value and a first desired position measured value, and correcting an output signal from the rotary encoder via the first deviation.

Abstract: A magnet-based rotary angle sensor system for detecting a shaft rotation. The magnet-based rotary angle sensor system includes a rotatable excitation unit which is mounted to a shaft for rotation therewith, and a static sensor unit. The rotatable excitation unit includes at least one excitation magnet. The static sensor unit detects an excitation-magnetic field generated by the at least one excitation magnet. The static sensor unit includes a first Wiegand sensor module and a second Wiegand sensor module which are arranged in a cross-shaped manner and axially spaced from each other.

Abstract: A sensor network arrangement includes at least one sensor device and a base station. The at least one sensor device includes a sensor module which detects a physical quantity and which provides a sensor signal corresponding thereto, an evaluation unit which evaluates the sensor signal and which provides sensor data corresponding thereto, a first wireless data interface which provides a wireless transmission of the sensor data, and at least one energy generator which generates electrical energy to operate the at least one sensor device. The base station includes a second wireless data interface which receives the sensor data transmitted by the first wireless data interface at arbitrary times, a first data storage which stores the sensor data received by the second wireless data interface, and at least one readout data interface which transmits the sensor data stored in the first data storage to an external readout device.

Abstract: A rotation angle measurement system for detecting a rotation of a shaft. The rotation angle measurement system includes the shaft which extends in an axial direction, a rotor unit having a sensor magnet, a stationary stator unit having a multi-turn sensor unit which is arranged radially spaced apart from the shaft and which has a Wiegand sensor, and a magnetic shielding arrangement for the Wiegand sensor. The rotor unit is connected to the shaft to rotate therewith and radially surrounds the shaft. The multi-turn sensor unit functionally interacts with the sensor magnet to detect revolutions thereof. The magnetic shielding arrangement is made from a material having a high magnetic permeability. The magnetic shielding arrangement includes shielding elements which are arranged to surround the Wiegand sensor on a radial inside, on a radial outside, on a first axial side, and on a second axial side thereof.

Abstract: A rotary angle measuring arrangement includes a shaft, and a rotary angle measuring system which detects a rotary shaft movement. The rotary angle measuring system includes an excitation unit connected to the shaft which generates a magnetic field, a magnetic field sensor, a PCB arrangement, and an evaluation electronics arranged on the PCB arrangement and electrically connected to the magnetic field sensor. The PCB arrangement includes a first PCB section arranged perpendicular to a longitudinal axis of the shaft, and a second PCB section angled with respect to the first PCB section and electrically connected thereto. The magnetic field sensor is arranged on the first PCB section. The magnetic field is detectable via the magnetic field sensor. A parallel projection of the second PCB section onto a longitudinal plane parallel to the longitudinal axis and a parallel projection of the excitation unit onto the longitudinal plane at least partially overlap.

Abstract: A rotation angle measurement system for detecting a shaft rotation. The rotational angle measurement system includes a rotor unit, a stationary stator unit, and a multi-turn sensor unit. The rotor unit is connected to the shaft to rotate therewith. The rotor unit radially surrounds the shaft and has at least one sensor magnet. The multi-turn sensor unit is arranged on the stationary stator unit spaced radially apart from the shaft. The multi-turn sensor unit interacts with the at least one sensor magnet to detect shaft revolutions. The multi-turn sensor unit includes a Wiegand sensor, at least one Hall sensor, an evaluation unit electrically connected to the Wiegand sensor and to the at least one Hall sensor, and a separate sensor unit circuit board which is fastened to the stationary stator unit and on which the Wiegand sensor, the at least one Hall sensor, and the evaluation unit are each arranged.

Abstract: A vehicle control assembly for an automatic control of a vehicle in an enclosed spatial field. The enclosed special field includes objects and floor area portions. The vehicle includes a drive device and a vehicle control device which controls the vehicle. The vehicle control assembly includes a navigation system for determining a position of the vehicle in the enclosed spatial field, a room sensor system with at least one 3D sensor assembly which is arranged in the enclosed spatial field, and a room control unit to which each of the room sensor system and the vehicle control device are controllably connected. The room sensor system detects a predeterminable size of each of the vehicle, each of the objects, and each person, respectively. The room control unit associates an at least two-dimensional safety region with the vehicle, with each of the objects, and with each person.

Abstract: A sensor device for detecting a physical variable. The sensor device includes a housing, a sensor module arranged in the housing, a potting compound which at least partially fills the housing and which encloses the sensor module, and at least one mounting element via which the sensor module is mounted to the housing. The sensor module includes a module board and at least one motion-sensitive sensor element which is arranged on the module board. The potting compound, in a cured state, has a hardness which is greater than a hardness of the at least one mounting element and less than a hardness of the housing.

Abstract: A drive arrangement for a door device which includes a door member. The drive arrangement includes a door shaft, a driven shaft which is operatively connected to the door shaft, a transmission arrangement which drives the door shaft, and at least one electric motor which is coupled to the transmission arrangement to move the door member of the door device from a closed state to an open state and vice versa. The at least one electric motor has at least one eccentric drive shaft. The transmission arrangement includes an eccentric gear transmission which has at least two orbiting toothed disks, each of which have an internal toothing. The at least two orbiting toothed disks are driven by the at least one eccentric drive shaft of the at least one electric motor, and, via the internal toothing, engage with the driven shaft.

Abstract: A calibration apparatus for a rotational angle measuring system includes a measuring system shaft and a measuring system housing. The calibration apparatus includes a shaft holding device which, in a calibration position, rotates about an axis of rotation and is co-rotatably connected to the measuring system shaft, and, in a load position, is decoupled from the measuring system shaft, a rotationally static housing holding device which, in the calibration position, is co-rotatably connected to the measuring system housing, and, in the load position, is decoupled from the measuring system housing, and a drive motor which drives the shaft holding device. In the calibration position, the shaft holding device has clamping jaws which are pressable onto the radial outer side of the measuring system shaft, and/or, the rotationally static housing holding apparatus has movable pistons which are pressable onto the radial outer side of the measuring system housing.

Abstract: A magnetic-field sensor device includes at least two impulse wires, a coil assembly which radially surrounds the at least two impulse wires, the coil assembly defining a sensor element and a feedback element which generates an auxiliary magnetic field, an energy storage which is electrically connected to the coil assembly, a switching element which is electrically connected to the energy storage and to the feedback element, and a control unit which electrically controls the switching element.

Abstract: A sensor unit for a rotational angle measurement system for detecting a rotational movement of a drive shaft includes a housing arrangement with a pot-shaped housing part, a carrier member, a sensor printed circuit board arranged on the carrier member, and a bearing which, in an operating state, mounts the sensor printed circuit board in a stationary manner in the housing arrangement with respect to the drive shaft. The bearing is a form fit/force fit arrangement so that the carrier member is movably mounted in the housing arrangement in a pre-assembled state.

Abstract: A method for calibrating a rotary encoder for measuring a rotary angle position of a machine shaft. The method includes rotating a machine shaft; measuring a start measuring point with a sensor unit; activating a timer module to measure a time value; measuring an intermediate measuring point with the sensor unit; storing the actual rotary angle position of the intermediate measuring point and the time value associated therewith; measuring an end measuring point with the sensor unit; recording a time value incremented by the timer module which reflects a runtime for a rotary motion of the start to the end measuring point; calculating at least one time-dependent reference rotary angle position; calculating a deviation between the actual rotary angle position measured and the at least one time-dependent reference rotary angle position calculated for at least one time value; and correcting an output signal from the rotary encoder via the deviation.

Abstract: A sensor device for detecting a physical variable. The sensor device includes a housing, a sensor module arranged in the housing, a potting compound which at least partially fills the housing and which encloses the sensor module, and at least one mounting element via which the sensor module is mounted to the housing. The sensor module includes a module board and at least one motion-sensitive sensor element which is arranged on the module board. The potting compound, in a cured state, has a hardness which is greater than a hardness of the at least one mounting element and less than a hardness of the housing.

Abstract: A magnet-based rotary angle sensor system for detecting a shaft rotation. The magnet-based rotary angle sensor system includes a rotatable excitation unit which is mounted to a shaft for rotation therewith, and a static sensor unit. The rotatable excitation unit includes at least one excitation magnet. The static sensor unit detects an excitation-magnetic field generated by the at least one excitation magnet. The static sensor unit includes a first Wiegand sensor module and a second Wiegand sensor module which are arranged in a cross-shaped manner and axially spaced from each other.