Piezoceramic shaft-driving type ultrasonic motor actuating method, involves generating triple phase driving traveling waves for ultrasonic motors according to propagation difference of wavelength of driving point

摘要

The method involves utilizing an orthogonal vibration wave to form a shaft driving force. Triple phase driving traveling waves are generated for piezoceramic shaft-driving type ultrasonic motors according to a propagation difference of a wavelength of a driving point. The ultrasonic motor comprises of a hollow structure shell, a shaft, a rotor bearing, and a stator bearing seat. An independent claim is also included for a piezoceramic shaft-driving type ultrasonic motor.