CHARACTERISTICS OF A BIDIRECTIONAL ROTARY ULTRASONIC MOTOR USING OBLIQUELY POLARIZED PIEZOELECTRIC TRANSDUCERS

被引：2
|
作者：
ISHII, T [1 ]
OHNISHI, K [1 ]
UEHA, S [1 ]
机构：
[1] TOKYO INST TECHNOL,PRECIS & INTELLIGENCE LAB,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 5B期
关键词：
ULTRASONIC MOTOR; PIEZOELECTRIC CERAMICS; POLARIZATION; RESONANCE; FEM (FINITE ELEMENT METHOD); LONGITUDINAL VIBRATION; TORSIONAL VIBRATION;
D O I：
10.1143/JJAP.32.2399
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Obliquely polarized piezoelectric ceramic transducers are newly employed to an ultrasonic motor. Since the direction of polarization is neither parallel nor perpendicular to the applied electric field, the longitudinal and the torsional vibrations are excited simultaneously. In addition, the direction of rotation can be switched by changing the driving frequency. Thus, this motor rotates in both clockwise and counterclockwise directions in spite of a single-phase input signal. The principle and the characteristics of the ultrasonic motor are described.
引用
收藏
页码：2399 / 2401
页数：3
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