| Autor: |
Kusakabe, Chiharu, Tomikawa, Yoshiro, Takano, Takehiro, Aoyagi, Manabu, Shoichi Inamura, Shoichi Inamura |
| Zdroj: |
Japanese Journal of Applied Physics; September 1994, Vol. 33 Issue: 9 p5374-5374, 1p |
| Abstrakt: |
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. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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