超音波モータやアクチュエータへの応用を目的とした電圧振動子のインピーダンス形等価回路

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概要

• 論文の詳細を見る

• The piezoelectric vibrator has been used at its resonance in general; therefore the equivalent circuits have been obtained as an admittance-type expression drawn from the input admittance developed near their resonance point. However, it may not necessarily be well for some piezoelectric devices, because they cannot yield a superior characteristic when used at the resonance frequency. On the other hand, vibrational characteristics of a piezoelectric ceramics vibrator only are proved experimentally to be good at its anti-resonance point. Therefore, the authors thought that the equivalent circuit of a piezoelectric vibrator should be expressed depending upon its anti-resonance, where it is called the B-type equivalent circuit. This paper deals with the equivalent circuits developed near the anti-resonance mainly depending upon the input impedance of the piezoelectric vibrator.

• 社団法人日本音響学会の論文

著者

• 神戸 信裕

  Department Of Electrical Engineering And Information Science Yamagata University

• 富川 義朗

  Department of Electrical Engineering and Information Science,Yamagata University

• 青柳 学

  Department of Electrical Engineering and Information Science,Yamagata University

• 広瀬 精二

  Department of Electrical Engineering and Information Science,Yamagata University

関連論文

• 圧電共振子の非線形振動を利用した音響位相共役波に関する実験
• 超音波モータやアクチュエータへの応用を目的とした電圧振動子のインピーダンス形等価回路
• A2 円筒型圧電セラミックスを用いた粉体移送デバイス(超音波アクチュエータ)

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