MAGNET-BASED ROTATIONAL ANGLE SENSOR SYSTEM
卷宗概要
发明人
SONJA HUSMANN; HANNO VOLKER
IPC 分类
CPC 分类
A magnet-based angle-of-rotation sensor system for detecting a shaft's rotational movement includes an excitation unit having a magnet, a Wiegand sensor unit having a Wiegand wire arranged within a sensor coil, a sensor unit, and an evaluation electronics. The excitation unit rotates with the shaft and generates an alternating excitation magnetic field at the Wiegand sensor unit and at the sensor unit. The Wiegand sensor unit generates Wiegand sensor voltage pulses in the sensor coil via magnetic field. The sensor unit detects the magnetic field and provides a sensor signal. The evaluation electronics detects the Wiegand sensor voltage pulses and determines a number of revolutions based thereon, and receives the sensor signal and determines an angle of rotation value based thereon. The evaluation electronics alternately applies a first and a second compensation parameter to the received magnetic field sensor signal when determining the angle of rotation value.
原文（中文）
A magnet-based angle-of-rotation sensor system for detecting a shaft's rotational movement includes an excitation unit having a magnet, a Wiegand sensor unit having a Wiegand wire arranged within a sensor coil, a sensor unit, and an evaluation electronics. The excitation unit rotates with the shaft and generates an alternating excitation magnetic field at the Wiegand sensor unit and at the sensor unit. The Wiegand sensor unit generates Wiegand sensor voltage pulses in the sensor coil via magnetic field. The sensor unit detects the magnetic field and provides a sensor signal. The evaluation electronics detects the Wiegand sensor voltage pulses and determines a number of revolutions based thereon, and receives the sensor signal and determines an angle of rotation value based thereon. The evaluation electronics alternately applies a first and a second compensation parameter to the received magnetic field sensor signal when determining the angle of rotation value.