Abstract
A laboratory installation for recording acoustic signals from a small surface area is described. The installation contains a contactless electromagnetoacoustic receiver in which the inductor has the form of two straight thin parallel conductors that are separated by a short distance. The Rayleigh-wave velocity was determined within a frequency range of 2–10 MHz. At these frequencies, the wavelength of surface acoustic waves varied from 600 to 240 μm, and the minimum base for measuring the Rayleigh-wave velocity at a frequency of 10 MHz was 500 μm. A new technique for measuring the time interval between two acoustic pulses is proposed.
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Original Russian Text © Kh.B. Tolipov, 2015, published in Pribory i Tekhnika Eksperimenta, 2015, No. 1, pp. 175–177.
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Tolipov, K.B. An experimental installation for contactless measurements of the velocity and displacement amplitudes of Rayleigh waves on a small surface area. Instrum Exp Tech 58, 167–169 (2015). https://doi.org/10.1134/S0020441215010108
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DOI: https://doi.org/10.1134/S0020441215010108