Aeronautics and astronautics


Release time:

2018-01-24

Ultrasonic motor has the advantages of simple structure, light weight, no interference from magnetic field, no need of lubricating oil under vacuum, high and low temperature and working under vacuum c

Ultrasonic motor has the advantages of simple structure, light weight, no interference from magnetic field, no need of lubricating oil under vacuum, high and low temperature and working under vacuum conditions.