摘要
A transducer-trpe bi-directional linear ultrasonic motor is presented. It has the features of flexible bi-directional drive, simple construction and easy control, etc. The character- istics parameters of the prototype are: frequency 21.46 kHz, maximum moving speed 400 mm/s under pre-load of 3.2 N, maximum thrust 2.1 N under pre-load of 1.6 N. The influence of phase shift and vibration amplitude of ultrasonic transducers on ideal elliptical locus and output characteristics are investigated with theoretical and experimental methods.
A transducer-trpe bi-directional linear ultrasonic motor is presented. It has the features of flexible bi-directional drive, simple construction and easy control, etc. The character- istics parameters of the prototype are: frequency 21.46 kHz, maximum moving speed 400 mm/s under pre-load of 3.2 N, maximum thrust 2.1 N under pre-load of 1.6 N. The influence of phase shift and vibration amplitude of ultrasonic transducers on ideal elliptical locus and output characteristics are investigated with theoretical and experimental methods.
