磁电式转速传感器采用磁电感应原理实现测速，当齿轮旋转时，通过传感器线圈的磁力线发生变化，在传感器线圈中产生周期性的电压，其幅度与转速有关，转速越高输出电压越高（0～a段），输出频率与转速成正比。
介绍了非接触磁电式转速传感器的基本原理、结构设计及磁路计算，给出了试验数据，并对测试结果进行了分析。
The basic principle, structure design and calculation of magnetic circuit for touchless magnetoelectric rotational velocity sensor are reported. The test data and testing result are also analyzed.
提出了一种异步电机无速度传感器矢量控制的新方法，用瞬时无功功率和励磁电流变化来估计电机转速。
This paper proposes a new method of sensorless vector control for induction motors, in which the motor speed is estimated by both instantaneous reactive power and variation of magnetizing current.
采用磁电式转速传感器对发动机转速、CVT输入和输出转速及传动带的位置即传动比的测试。
Magnetoelectricity rev transducer is chosen to test the rotate speed of the engine, of the input and output of CVT and to test the position of the transmission belt.
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