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Thickness-shear vibration of an AT-cut quartz resonator with a hyperbolic contour

机译:具有双曲线轮廓的AT切割石英谐振器的厚度剪切振动

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摘要

A theoretical analysis is performed on thicknessshear vibrations of a contoured AT-cut quartz resonator with a hyperbolic thickness variation using the Legendre equation and hypergeometric function. Based on the solution, resonant frequencies and modes are calculated. Strong energy trapping of the modes is observed. The effects of the parameters of the hyperbolic contour on resonant frequencies and modes are examined. A comparison with the conventional contoured resonator in the literature with a quadratic thickness variation is made. The behaviors of the two types of resonators are qualitatively similar, with small but significant quantitative differences.
机译:使用勒让德方程和超几何函数,对具有双曲线厚度变化的轮廓AT切割石英谐振器的厚度剪切振动进行了理论分析。基于该解决方案,可以计算出谐振频率和模态。观察到模式的强能量陷阱。研究了双曲轮廓参数对共振频率和模态的影响。进行了与传统的轮廓谐振器的比较,其具有二次厚度变化。两种类型的谐振器的行为在质量上相似,但数量差异很小,但差异很大。

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