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  • Title: The propagation of Lamb waves in a plate bordered with layers of a liquid.
    Author: Wu JR, Zhu ZM.
    Journal: J Acoust Soc Am; 1992 Feb; 91(2):861-7. PubMed ID: 1556318.
    Abstract:
    The influence of liquid layers on the propagation of Lamb waves in a plate of finite thickness is studied theoretically. The dispersion equations of Lamb waves in a plate bordered with layers of liquids are derived. Numerical solutions of the equations show that the phase velocity of Lamb waves changes with the thickness of the liquid layers. For the lowest antisymmetrical mode of very thin plates, the numerical results calculated from the dispersion equations are compared with those derived from the bending wave acoustic impedance approach. The limitation of the latter is discussed. Applications of Lamb waves pertinent to biosensing are also presented.
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