Effect of Tilted Edges on Coupled Vibrations of Doubly Rotated Quartz Plates
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概要
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We numerically analyze the two-dimensional (2-D) coupled vibrations of a doubly rotated quartz plate with tilted edges. An efficient technique that uses a combination of 1-D and 2-D finite element methods is developed to solve coupled vibrations in the Y$'$-Z$'$ cross section of a parallelogram shape. When the orientation of a quartz plate is described using the IEEE notation, as (YXwlt)$\phi$/$\theta$/$\psi$, the third rotation $\psi$ about the plate normal is selected such that the Z$'$-width faces are parallel to the particle motion of a slow-shear wave propagating in the Y$'$-thickness direction. For SC-cut plates operating in the fundamental slow thickness-shear mode, we evaluate the effect of tilted edges on the frequency spectra and the first frequency-temperature coefficients, and verify the strong decoupling effect on the thickness-shear and face-shear modes. The optimal inclination angle of tilted edges for SC and FC cuts is appropriately defined as the equiphase plane of the main displacement of the face-shear traveling wave.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-05-15
著者
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Watanabe Yasuaki
Graduate School of Science and Engineering, Tokyo Metropolitan Univ.
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Sekimoto Hitoshi
Graduate School Of Engineering Tokyo Metropolitan University
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Tamura Takashi
Graduate School Of Engineering Tokyo Metropolitan University
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GOKA Sigeyoshi
Graduate School of Engineering, Tokyo Metropolitan University
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Sekimoto Hitoshi
Graduate School of Engineering, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan
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Watanabe Yasuaki
Graduate School of Engineering, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan
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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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Goka Sigeyoshi
Graduate School of Engineering, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan
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Watanabe Yasuaki
Graduate School of Engineering, Tokyo Metropolitan University,
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