The signal coming from single channel only reflects the vibration of the rotor in the sensor orientation, so it can't accurately offer integral information.
A novel method that USES the harmonic back EMF signal to extract the rotor position is put forward, and a new position sensor merged into an organic whole with the motor is designed.
提出了一种利用谐波反电势信号实现电机转子位置检测的新方法，设计了与电机一体化的新型位置传感器。
3
Theoretic calculation and relative test are carried out against the rotor vertical and horizontal signal phase change rule during rotor running up.