1·Estimate of angular velocity is used as the state feedback to replace the expensive gyro and tachometer generator.
用角速度估计值作状态反馈可以代替价格昂贵的速度陀螺仪和测速电机。
2·TACHOMETER generator, a small electric generator for supplying current at a frequency proportional to the speed of rotation.
测速发电机，提供频率与转速成比例的电流的小发电机。
3·An algorithm of unoscillation spot is given by example, and a practical method of tachometer generator installation is presented as well.
用实例给出了无振荡结点的位置求法，同时还介绍了测速电机的切实可行的安装方法。
4·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。