An Introduction to Ultrasonic Motors by Toshiiku SashidaAn Introduction to Ultrasonic Motors by Toshiiku Sashida

An Introduction to Ultrasonic Motors

byToshiiku Sashida, Takashi Kenjo

Hardcover | October 1, 1992

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The ultrasonic motor, invented in 1980, utilizes the piezoelectric effect in the ultrasonic frequency range to provide the motive force. (In conventional electric motors the motive force is electromagnetic). The result is a motor with unusually good low-speed high-torque and power-to-weightcharacteristics. It has already found applications in camera autofocus mechanisms, medical equipment subject to high magnetic fields, and motorized car accessories. Its applications will increase as designers become more familiar with its unique characteristics.This book is the result of a collaboration between the inventor and an expert in conventional electric motors: the result is an introduction to the general theory presented in a way that links it to conventional motor theory. It will be invaluable both to motor designers and to those who designwith and use electric motors as an introduction to this important new invention.
Takashi Kenjo is at University of Industrial Technology, Kanagawa.
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Title:An Introduction to Ultrasonic MotorsFormat:HardcoverDimensions:254 pages, 9.21 × 6.14 × 0.75 inPublished:October 1, 1992Publisher:Oxford University Press

The following ISBNs are associated with this title:

ISBN - 10:0198563957

ISBN - 13:9780198563952

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Table of Contents

1. What is an ultrasonic motor?2. Theoretical treatment of component elements3. The Piezoelectric element and vibrator4. Theory and experiments on the wedge-type motor5. Theory of the ultrasonic wave motor6. Equivalent-circuit analysis for the travelling-wave motor7. Design, assembly and testing of a prototype ultrasonic motor8. Comparison with electromagnetic motorsAutobiographical notes (Toshiiku Sashida)Index