摘要
研究各向异性板有液层负载时板中Ｌａｍｂ波的传播．以微传感领域常用的ＺｎＯ等为例，从弹性波传播理论出发，结合边界条件，导得了各向异性薄板有液层负载时板中Ｌａｍｂ波传播的色散方程，这也同样适用于正交晶体系，正方晶体系和立方晶体系的晶体．数值计算结果表明，各向异性板中Ｌａｍｂ波相速度随液层厚度增加呈周期变化．当单面有液层负载的薄板厚度２ｄ很小时，Ａ０模式的类Ｌａｍｂ波的微质量传感特性也作了讨论．
Based on elastic wave propagation theory, a dispersion equation for thin anisotropic plate (such as commonly used ZnO) bordered with liquid layers is derived. Higher symmetry crystals, such as orthorhombic, tetragonal, cubic, isotropic , are contained implicitly in this analysis. For the case of one liquid layer loading, numerical calculations show that the phase velocity changes periodically with the thickness of liquid layer. When the thickness of the anisotropic plate 2d is very small, mass sensing application of A0 mode Lamb wave is also discussed.
出处
《声学学报》
EI
CSCD
北大核心
2001年第5期429-434,共6页
Acta Acustica
基金
国家自然科学基金资助项目
