単一ステータによる回転直動圧電アクチュエータの開発(第2報) : TRモータの諸特性

概要

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We have developed the piezoelectric actuator having a single stator with translational and rotational motions (TR Motor). The stator has been fabricated as a rectangular metallic solid with a through-hole. The inner surface of the hole generates vibration modes, transferring the energy to a shaft, when voltages at each resonant frequency are applied. In this paper, the performances of the TR motor are clarified toward the practical use. The performance was measured after optimal preload was determined. As the result, the maximum torque and rotational speed were approximately 2.5mNm and about 120min^<-1>, and the thrust force and translational speed were approximately 0.33N and about 85mm/s. In addition, the motor characteristics by the amplitude, frequency, and phase difference of the applied voltages were measured.
公益社団法人精密工学会の論文
2009-03-05