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沖调速系统模拟试验,省去了测速发电机,而利用转子电势组成速度负反馈系统。
An algorithm of unoscillation spot is given by example, and a practical method of tachometer generator installation is presented as well.