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.

转子的振动形式是个空间的概念，单通道信号只是转子在传感器方向上振动的反映，所能提供的转子振动信息并不十分准确、完整。

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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。

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Theoretic calculation and relative test are carried out against the rotor vertical and horizontal signal phase change rule during rotor running up.

针对转子在变速过程中垂直和水平信号相位及其差值变化规律进行了理论计算和相关试验。

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