Ultrasonic wave motor and method of manufacture

Details Ultrasonic wave motor and method of manufacture Ultrasonic wave motor and method of manufacture

1996-02-05

1997-12-16

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310321, H01L 4108

Patent

active

056989300

ABSTRACT:
An ultrasonic motor having an elastic body provided with a base part and two driving force output members. The driving force output members are provided with slide members. Two piezo-electric elements for generating longitudinal oscillation L1 mode and flex oscillation B4 mode are arranged on the base part. The slide members can be of a variety of configurations and patterns, including, for example, two strips placed either lengthwise or widthwise across the driving force output members. Further, the driving force output members can either be an integral part of the elastic body or can be formed in a separate process and then joined to the elastic body.

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Ultrasonic Motors Theory and Applications, S. Usha, Y. Tomikawa, M. Jurosawa and N. Nakamura, all pages, Clarendon Press, Oxford, 1993.
Piezoelectric Linear Motors for Application to Driving a Light Pick-Up Element, Y. Tomikawa, M. Aoyagi, T. Ogasawara, A. Yabuki, Yamagata University, (pp. 393-398) (1993)(with English translation (p.394 (b) excerpt)).

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