STEPPING DRIVE OF SELF-OSCILLATION-TYPE ULTRASONIC MOTOR

被引:5
作者
KUSAKABE, C
TOMIKAWA, Y
TAKANO, T
AOYAGI, M
INAMURA, S
机构
[1] YAMAGATA UNIV,DEPT ELECTR & INFORMAT ENGN,YONEZAWA,YAMAGATA 992,JAPAN
[2] TOHOKU INST TECHNOL,DEPT COMMUN ENGN,SENDAI 982,MIYAGI,JAPAN
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 9B期
关键词
ULTRASONIC MOTOR; STEPPING MOTOR; SELF-OSCILLATION; PIEZOELECTRIC RESONATOR; OPEN-LOOP CONTROL; ANALOG SWITCH;
D O I
10.1143/JJAP.33.5374
中图分类号
O59 [应用物理学];
学科分类号
摘要
A stepping drive method that does not use an extra clock signal source for a self-oscillation-type ultrasonic motor is described. The motor used here is an in-phase drive-type ultrasonic motor using two degenerate bending vibration modes of a disk. The output electrical signals caused on a self-oscillation are used as a clock signal for the stepping drive. An angular displacement at every step is realized using an open-loop control system without a rotary encoder as an angular displacement sensor. In order to eliminate the deviation of angular displacement at every step, a multitooth rotor was used. As a result, stable stepping drive of an ultrasonic motor was realized.
引用
收藏
页码:5374 / 5377
页数:4
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