Title :
A novel ultrasonic motor based on a single vibration bending mode of a PZT tube
Author :
He, Siyuan ; Chiarot, Paul R. ; Park, Soonho
Author_Institution :
Dept. of Mech. & Ind. Eng., Ryerson Univ., Toronto, ON, Canada
Abstract :
A novel piezoelectric tube-based ultrasonic motor is presented. Selected areas at the ends of the piezoelectric tube generate forces along the circumferential direction to drive rotors to rotate. Bi-directional motion is achieved by switching the bending direction. Only one driving signal is needed to drive the motor. Prototypes 6.6 mm in diameter were fabricated and achieved a maximum no-load speed of 187 RPM and a maximum torque of 468 μNm using a driving voltage of ±50V at a frequency of 24.7 kHz.
Keywords :
bending; drives; lead compounds; rotors; ultrasonic motors; vibrations; PZT; PZT tube; bi-directional motion; circumferential direction; drive rotors; frequency 24.7 kHz; piezoelectric tube; single vibration bending mode; switching direction; ultrasonic motor; Acoustics; Clocks; Electrodes; Electron tubes; Rotors; Trajectory; Vibrations;
Conference_Titel :
Mechatronics and Automation (ICMA), 2010 International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-5140-1
Electronic_ISBN :
2152-7431
DOI :
10.1109/ICMA.2010.5588778
