✦ LIBER ✦

Potential ability of ultrasonic motors: A discussion focused on the friction control mechanism

✍ Scribed by Kentaro Nakamura; Sadayuki Ueha

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 326 KB
Volume: 81
Category: Article
ISSN: 8756-663X
DOI: 10.1002/(sici)1520-6432(199804)81:4<57::aid-ecjb7>3.0.co;2-2

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✦ Synopsis

This paper reviews the potential characteristics of ultrasonic motors from the viewpoint of the friction control mechanism. Various kinds of principles proposed previously are grouped into two categories: motors in which the friction force is controlled temporally and those in which the friction force is regulated spatially. Focusing on this difference, basic motor characteristics are discussed theoretically and illustrated experimentally. Problems remaining to be solved by future study are suggested. Some new ideas of non-contact drive by ultrasonic vibration are introduced briefly.