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Proceedings Paper

Development of a new standing wave type ultrasonic linear motor
Author(s): Yongrae R. Roh; Jaewha Kwon; Soosun Lee
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Paper Abstract

This paper presents a new standing wave type linear motor that can move bi-directionally with identical performance in both the forward and backward directions. The motor consists of a metallic stator and two piezoceramic plates bonded to the stator with the spatial phase difference of a half wavelength. With two electric driving signals either in-phase or out-of-phase for the two piezoceramic plates, the piezoceramic plates excite two ultrasonic standing waves with a certain phase difference. They generate a new standing wave when combined. The operation principle of the motor is verified through finite element analyses. For an experimental illustration of the theoretical and numerical results, a sample motor is fabricated and characterized following the numerical design. The experimental results confirm the validity and practical applicability of the new motor structure.

Paper Details

Date Published: 15 July 2002
PDF: 8 pages
Proc. SPIE 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems, (15 July 2002); doi: 10.1117/12.474670
Show Author Affiliations
Yongrae R. Roh, Kyungpook National Univ. (South Korea)
Jaewha Kwon, Kyungpook National Univ. (South Korea)
Soosun Lee, Kyungpook National Univ. (South Korea)

Published in SPIE Proceedings Vol. 4701:
Smart Structures and Materials 2002: Smart Structures and Integrated Systems
L. Porter Davis, Editor(s)

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