ZHU Hua~1, HE Hong-lin~1, CHEN Zhi-hua~2, et al. Realization of measurement and control system for ultrasonic motor[J]. 2006, (7): 64-66. DOI: 10.13873/j.1000-97872006.07.021.
A measurement and control system based on personal computer(PC) is developed for ultrasonic motor.Speed of ultrasonic motor is unstable in long time running because of the change of piezoelectric ceramics characteristic.The problem is solved in this system.Fluctuation of motor speed could be controlled within 3 % based on proportional integral(PI) control algorithm.Experimental results also show that fuzzy plus PI controller is feasible for precise position control of ultrasonic motor in this system
and position precision could be implemented within 0.09°.