Vibration Torque Measurement and Mechanism Analysis of Rotary Stepping Motor

Vibration torque are existence obviously during operation of stepping motor, it is a periodic structure vibration problem. In this paper, the actual vibration torque testing of stepper motor is executed through a selfmade vibration torque sensor, the experimental results show that the stepping motor vibration torque of single three shot operation is more bigger than the six shot, and obvious reply oscillation existence in two operations; sharp vibration torque is generated on low frequency lost step oscillation; Last, the generation of these experimental phenomena are analyzed, it can provide a certain reference for controller or control algorithm designation of stepper motor.