Utilization of Permittivity Memory Effect for Position Detection of Shape Memory Piezoelectric Actuator
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概要
- 論文の詳細を見る
A shape memory piezoelectric actuator can be fabricated by controlling the electrical imprint field of a ferroelectric material. In this study, we report the permittivity memory effect for the position detection of a shape memory piezoelectric actuator. To measure the bias field dependent permittivity of the shape memory piezoelectric actuator, a low-amplitude and high-frequency sinusoidal wave was superimposed on the driving voltage of the actuator. Under pulsed voltage operation, the actuator demonstrated the strain and permittivity memory effects depending on its polarization state. Each permittivity corresponded to its strain condition; this indicates that the shape memory piezoelectric actuator can be operated as a self-sensing actuator.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-01-25
著者
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Hosaka Hiroshi
Graduate School Of Frontier Science The University Of Tokyo
-
Morita Takeshi
Graduate School Of Frontier Sciences The University Of Tokyo
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Kadota Yoichi
Graduate School Of Frontier Sciences The University Of Tokyo
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Hosaka Hiroshi
Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Chiba 277-8563, Japan
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Morita Takeshi
Graduate School of Engineering, Shizuoka University, Hamamatsu 432-8561, Japan
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Morita Takeshi
Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Chiba 277-8563, Japan
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