Statics analysis of three-degree-of-freedom traveling-wave type ultrasonic motor;

Precision positioning control of joint with Multi-degrees of freedom based on traveling-wave ultrasonic motor;

The development of a high-precision position system design method for robotic multi-DOF manipulator using traveling-wave ultrasonic motor and step motor is put forward.

The characteristics and detection methods of locked-rotor state for traveling-wave ultrasonic motor(TRUSM) was studied.

This paper firstly makes research into the running characters of traveling wave ultrasonic motor(USM),and points out the disadvantages of relatively low precision,high speed and complex algorithm of traditional control methods;it then discuss an easy,high precision,and low speed control strategy of traveling wave USM!named micro-step control method.

With the goal of raising property of a bar-type traveling wave ultrasonic motor, this paper introduces the structure of the motor s stator and emphasizes the importance of the stator s firmly tight force for piezoelectric ceramic and motor property.