本文介绍了用脉冲细分法测量机械构件的运动误差、转速、速度和加速度的测量原理,分析了可能产生的误差及提高测量精度的方法,并给出了相应的逻辑设计框图。该仪器可测量机床的扭振和爬行,可以进行传动链分析及机构的运动学和动力学分析。 This paper introduces the measuring principle of measuring the motion error, speed, speed and acceleration of mechanical components by pulse subdivision method, analyzes the possible errors and the method of improving the measurement accuracy, and gives the corresponding logic design block diagram. The instrument measures the torsional vibration and creep of the machine tool, allowing analysis of the transmission chain and kinematics and dynamics of the mechanism.