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Piezoelectric Motors, an Overview

Physik Instrumente GmbH & Co. KG, Auf der Roemerstrasse, 1, Karlsruhe 76228, Germany
Author to whom correspondence should be addressed.
Academic Editor: Kenji Uchino
Actuators 2016, 5(1), 6;
Received: 1 December 2015 / Revised: 1 February 2016 / Accepted: 17 February 2016 / Published: 26 February 2016
(This article belongs to the Special Issue Piezoelectric Actuators)
Piezoelectric motors are used in many industrial and commercial applications. Various piezoelectric motors are available in the market. All of the piezoelectric motors use the inverse piezoelectric effect, where microscopically small oscillatory motions are converted into continuous or stepping rotary or linear motions. Methods of obtaining long moving distance have various drive and functional principles that make these motors categorized into three groups: resonance-drive (piezoelectric ultrasonic motors), inertia-drive, and piezo-walk-drive. In this review, a comprehensive summary of piezoelectric motors, with their classification from initial idea to recent progress, is presented. This review also includes some of the industrial and commercial applications of piezoelectric motors that are presently available in the market as actuators. View Full-Text
Keywords: piezoelectric; inverse piezoelectric effect; friction coupling; motor piezoelectric; inverse piezoelectric effect; friction coupling; motor
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Spanner, K.; Koc, B. Piezoelectric Motors, an Overview. Actuators 2016, 5, 6.

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