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Proceedings Paper

Operational characteristics of a same-phase drive-type ultrasonic motor
Author(s): Takehiro Takano; Yoshiro Tomikawa; Masato Yamanoi; Seiji Hirose; Chiharu Kusakabe
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Paper Abstract

We have investigated in detail the ultrasonic motors using two degeneration modes driven by the same-phase input signal, namely, one channel, and some constructions and characteristics of the prototype motors using disk vibrator based on this principle have been reported. However, operational characteristics of the motor were influenced considerably in proportion to the pressing force between the stator and the rotor. In this paper, some considerations on the effect are investigated experimentally. From measurements of the vibration mode in the operational state, it was found that the change of rotational direction of the motor is caused by the shift of the vibration axis of the mode synthesized from two degeneration modes. Revolution characteristics for both rotational directions of the improved motor are shown. The maximum torque and efficiency were about 4.5kgf-cm and 30 percent, respectively.

Paper Details

Date Published: 14 November 1997
PDF: 4 pages
Proc. SPIE 3242, Smart Electronics and MEMS, (14 November 1997); doi: 10.1117/12.293552
Show Author Affiliations
Takehiro Takano, Tohoku Institute of Technology (Japan)
Yoshiro Tomikawa, Yamagata Univ. (Japan)
Masato Yamanoi, Yamagata Univ. (Japan)
Seiji Hirose, Yamagata Univ. (Japan)
Chiharu Kusakabe, Yamagata Univ. (Japan)

Published in SPIE Proceedings Vol. 3242:
Smart Electronics and MEMS
Alex Hariz; Vijay K. Varadan; Olaf Reinhold, Editor(s)

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