Mechanical Quality Factor of Multilayer Piezoelectric Ceramic Transducers
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概要
- 論文の詳細を見る
It has long been known that the mechanical quality factor at resonance for multilayer piezoelectric transducers decreases as the number of ceramic layers is increased. We investigated this phenomenon using multilayer transducers, which are driven in a longitudinal mode of the piezoelectric transverse-effect. In this report, we express equivalent circuits for the transducers with resistance for electrode layers. We concluded that the mechanical quality factor at resonance for the transducers decreases because the ratio of resistance for electrode layers to the total equivalent resistance increases with the number of ceramic layers.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-05-30
著者
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Sasaki Yasuhiro
Functional Devices And Material Laboratories Nec Corporation
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TAKAHASHI Sadayuki
Functional Devices and Material Laboratories, NEC, Corporation
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Takahashi Sadayuki
Functional Devices and Material Laboratories, NEC, Corporation, 4-1-1 Miyamae-ku, Kawasaki 216-8555, Japan
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Yamamoto Mitsuru
Functional Devices and Material Laboratories, NEC, Corporation, 4-1-1 Miyamae-ku, Kawasaki 216-8555, Japan
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Sasaki Yasuhiro
Functional Devices and Material Laboratories, NEC, Corporation, 4-1-1 Miyamae-ku, Kawasaki 216-8555, Japan
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