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On Formulating Problems of Contactless Surface Control of Electroacoustic Wave Propagation

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Abstract

The possibility of formulating problems of controlling electroacoustic transverse waves propagating in a piezoelectric half-space via nonacoustic influence on its surface is investigated. The presence of a conducting surface near the mechanically free surface of a piezoelectric half-space changes the character of the near-surface localization of the propagating electroacoustic wave in it. Based on this, the formulation of the problem of controlling the wave localization process is proposed. It is shown that an unsteady electric potential at an electric shield or the nonstationarity of the gap width between these surfaces lead to a nonacoustic effect on the piezoelectric half-space. In problems of controlling the near-surface wave-energy localization, nonacoustic effects on the surface of the piezoelectric half-space are used as a control function.

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  1. Institute of Mechanics, National Academy of Sciences of Armenia, Yerevan, Armenia

    A. S. Avetisyan

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Avetisyan, A.S. On Formulating Problems of Contactless Surface Control of Electroacoustic Wave Propagation. Acoust. Phys. 68, 227–234 (2022). https://doi.org/10.1134/S1063771022030022

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