Ultrasonic motor

Details Ultrasonic motor Ultrasonic motor

1990-10-24

1992-04-14

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, H01L 4108

Patent

active

051051176

ABSTRACT:
This is an ultrasonic motor having a drive unit of low elastic modulus disposed between an ultrasonic vibrator and a mover so as to prevent noise or unnecessary vibration originating from friction on a sliding surface. Moreover, providing a drive unit of plastic and of a particular thermal conductivity enables highly efficient and stabilized motion for long hours and stable driving characteristics.

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Ultrasonic Motors Using Piezoelectric Ceramic Multi-Mode Vibrators Takano et al., Dept. of Communication Engineering, Tohoku Inst. 12/87.

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