Two-dimensional (x-y) actuator using multimode degeneration of a piezoelectric ring vibrator

Takehiro Takano; Yoshiro Tomikawa; Hidetoshi Hata; Seiji Hirose

doi:10.1117/12.237027

26 April 1996 Two-dimensional (x-y) actuator using multimode degeneration of a piezoelectric ring vibrator

Takehiro Takano, Yoshiro Tomikawa, Hidetoshi Hata, Seiji Hirose

Proceedings Volume 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials; (1996) https://doi.org/10.1117/12.237027
Event: 3rd International Conference on Intelligent Materials, 1996, Lyon, France

Abstract

This paper deals with a 2D (x-y) actuator using multimode degeneration of bending vibrations - B₂₁,B₂₁' modes - and a radial vibration - (R,1) mode-excited in a piezoelectric ring vibrator. This actuator is aimed for not so large movement such as the one of a camera lens. The operating principle and the driving methods for movements of the actuator are presented. Degeneration conditions of the modes are considered by applying F.E.M., and the construction and characteristics of a prototype actuator are shown. It was found that the 2D (x- y) actuator can be made possible using the multimode ring vibrator proposed here.

Citation Download Citation

Takehiro Takano, Yoshiro Tomikawa, Hidetoshi Hata, and Seiji Hirose "Two-dimensional (x-y) actuator using multimode degeneration of a piezoelectric ring vibrator", Proc. SPIE 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials, (26 April 1996); https://doi.org/10.1117/12.237027

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