本文提出采用激光多谱勒测速技术测量微电机启动特性的新方法,简要介绍它的基本原理,着重讨论了测试精度及跟踪速率等若干问题,并进行了初步实验。这一方法的优点是不必向电机施加负载,测量精度高,测试时间快。 In this paper, a new method to measure the starting characteristics of a micromotor using laser Doppler velocimetry is presented. The basic principle of the method is briefly introduced. Several problems such as the test accuracy and the tracking rate are emphatically discussed. The preliminary experiments are carried out. The advantage of this method is that it is not necessary to apply a load to the motor, the measurement accuracy is high, and the test time is fast.