Effect of a liquid on the characteristics of antisymmetric lamb waves in thin piezoelectric plates |
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| Authors: | I E Kuznetsova B D Za?tsev S G Joshi A A Teplykh |
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| Institution: | (1) Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Saratov Branch, ul. Zelenaya 38, Saratov, 410019, Russia;(2) Department of Electrical and Computer Engineering, Marquette University, Milwaukee, WI 53201-1881, USA |
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| Abstract: | The effect of a perfectly elastic nonviscous nonconducting liquid on the characteristics of a zero-order antisymmetric Lamb wave (the A 0 wave) in a 128YX LiNbO3 plate, whose thickness is small compared to the wavelength, is studied both theoretically and experimentally. A method for calculating the velocity and attenuation of this wave depending on the value of the parameter hf (h is the plate thickness and f is the wave frequency) is proposed. In addition, the characteristics of an A 0 wave in a piezoelectric plate that is in contact with two different perfectly elastic nonviscous nonconducting liquids on its two sides are investigated. A possibility for the development of a proximate analyzer of liquids on the basis of such a structure is indicated. |
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