Vibration Control of Piezoelectric Lead Zirconate Titanate Ceramics Using Negative Capacitance
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概要
- 論文の詳細を見る
We report on the results of an experiment on the damped vibration process of a lead zirconate titanate (PZT) bimorph connected to a negative-capacitance circuit (NCC), which acts as a capacitor with negative capacitance. NCCs are of two types: a soft NCC that softens the piezoelectric material, and a hard NCC that hardens the piezoelectric material. It was found that the amplitude and the damping time constant of the damped vibration of PZT ceramics connected to a hard NCC change markedly compared with those of PZT ceramics not connected to a hard NCC. In particular, the damping time constant becomes very small. The result suggests that the PZT ceramics become very viscous when connected to a hard NCC.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-09-25
著者
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IMOTO Kenji
Imoto Mechanical Engineering Co., Ltd.
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DATE Munehiro
Kobayashi Institute of Physical Research
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FUKADA Eiichi
Kobayashi Institute of Physical Research
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Tajitsu Yoshiro
Electrical Engineering Department, Graduate School of Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Takarada Jun
Electrical Engineering Department, Graduate School of Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Yamamoto Ken
Electrical Engineering Department, Graduate School of Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Imoto Kenji
Imoto Mechanical Engineering Co., Ltd., 501 Tsukinuke, Kamigyo, Kyoto 602-8315, Japan
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