Three-Dimensional Analysis of Coupled Vibrations of Rectangular AT-Cut Quartz Plates with Tab Electrodes
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概要
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We numerically analyzed the influence of strip tab electrodes on the coupled vibrations of the fundamental thickness-shear (TS) and flexural modes in a rectangular AT-cut quartz plate with rectangular central electrodes. It was assumed that the tabs were extended along the $x_{1}$ ($X$) axis and softly supported at two points on a single $x_{1}$-edge of the plate. We calculated the frequency spectra near the main TS response for three types of tab configurations that possessed a twofold rotational symmetry about the crystal $X$-axis of quartz as well as the rectangular plate and central electrodes. These results verified that the tabs affect the characteristics of coupling between the TS and spurious modes, and demonstrated that the coupling strength depended on both tab width and tab arrangement. We also clarified each property for the three types of tab configurations.
- 2009-08-25
著者
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Sekimoto Hitoshi
Graduate School Of Engineering Tokyo Metropolitan University
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Goka Shigeyoshi
Graduate School Of Engineering Tokyo Metropolitan University
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Watanabe Yasuaki
Graduate School of Engineering, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji, Tokyo 192-0397, Japan
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Fujiwara Tukasa
Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
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Watanabe Yasuaki
Graduate School of Engineering, Tokyo Metropolitan University,
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