speed electromotive force的意思|示意

The model test tried on this system did not use the tachometer generator but used rotor electromotive force instead to form the speed negative feed-back system.

本绕线式电动机转子电路脉冲调速系统模拟试验，省去了测速发电机，而利用转子电势组成速度负反馈系统。

This paper analyzes the forming process of unloading voltage and the relations among unloading voltage, phase electromotive force, exciting current and rotational speed in art alternator.

分析了汽车发电机抛负载电压的形成过程及其与发电机的相电动势、激磁电流和转速之间的关系。