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A pulse ultrasonic gauge for measuring velocities of surface acoustic waves

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Abstract

A pulse broadband gauge designed for measurements of the velocities of surface acoustic waves is described. The gauge’s output signal is formed during mechanical translation of focused ultrasonic transducers relative to a specimen under study placed in an immersion liquid. A design of the device with line-focused lensless ultrasonic transducers for the frequency range 2–25 MHz is considered. The results of measurements of test samples are presented, and the algorithms for processing the output spatial-temporal signals for determining the frequency dependences of phase velocities of acoustic waves are described. Using a carbon steel sample as an example, it is shown that the random error component in acoustic-wave velocity measurements can be estimated as ±(2–8) and ±(1–3) m/s for longitudinal and lateral scanning modes, respectively.

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Authors and Affiliations

  1. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 119991, Russia

    S. A. Titov, R. G. Maev & A. N. Bogachenkov

Authors
  1. S. A. Titov
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  2. R. G. Maev
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  3. A. N. Bogachenkov
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Additional information

Original Russian Text © S.A. Titov, R.G. Maev, A.N. Bogachenkov, 2006, published in Pribory i Tekhnika Eksperimenta, 2006, No. 1, pp. 121–127.

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Titov, S.A., Maev, R.G. & Bogachenkov, A.N. A pulse ultrasonic gauge for measuring velocities of surface acoustic waves. Instrum Exp Tech 49, 113–119 (2006). https://doi.org/10.1134/S0020441206010167

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  • DOI: https://doi.org/10.1134/S0020441206010167

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