SINGLE-PHASE DRIVE OF A CIRCULAR ULTRASONIC MOTOR

被引：21

作者：

KUROSAWA, M

UEHA, S

机构：

[1] Precision and Intelligence Laboratory, Tokyo Institute of Technology, Yokohama, 227, 4259 Nagatsuta, Midori-ku

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1991年 / 90卷 / 04期

关键词：

D O I：

10.1121/1.401703

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method of single-phase drive of an ultrasonic rotary motor is proposed where the vibration mode of a circular stator is rotated by a single-phase source. If a small mass is attached to the circular ring vibrator, the degenerate doublets of the vibration mode are perturbed and separated into two orthogonal vibration modes with different resonance frequencies. The two modes can be excited with a phase difference of 90-degrees by a single-phase source if the amount of the mass is appropriate. This causes the rotation of the vibration mode. The proposed method is successfully studied theoretically and compared well experimentally.

引用

页码：1723 / 1728

页数：6

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