Title :
A small noncontact ultrasonic motor
Author :
Hirose, S. ; Yamayoshi, Y. ; Ono, H.
Author_Institution :
Fac. of Eng., Yamagata Univ., Yonezawa
fDate :
31 Oct-3 Nov 1993
Abstract :
Small sized non-contact type ultrasonic motors are described. It is considered that the driving force of the ultrasonic motor described here may be obtained by the radiation pressure of the sound wave radiated from the stator vibrator. The size of one of the trial ultrasonic motors is 10 mm in diameter and 1 mm in thickness, and the size of another one is 5 mm in diameter and 0.5 mm in thickness. It has been examined that this type of ultrasonic motor can be miniaturized similarly keeping the optimum revolution characteristics
Keywords :
piezoelectric motors; small electric machines; stators; 0.5 mm; 1 mm; 10 mm; 5 mm; driving force; optimum revolution; radiation pressure; small noncontact ultrasonic motor; stator vibrator; Acoustical engineering; Ceramics; Electrodes; Resonance; Resonant frequency; Rotors; Stators; Voltage;
Conference_Titel :
Ultrasonics Symposium, 1993. Proceedings., IEEE 1993
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1993.339535
