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Fundamentals of electromagnetic-acoustic thickness measurements with attachable probes: 1. Direct electromagnetic-acoustic transformation in a tangential polarizing field

  • Acoustic Methods
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Abstract

Formulas describing the projections of elastic displacements in longitudinal and shear waves, which are generated via electrodynamic and magnetic mechanisms, are derived at arbitrary values of macroscopic parameters of a solid. It is shown that, in ferromagnets, longitudinal waves can be compensated owing to antiphase properties of the electrodynamic and magnetic mechanisms; as a result, shear vibrations become most significant. It is suggested and substantiated that, in a tangential polarizing field, the operation of thickness gages may be associated with the magnetostriction mechanism of the electromagnetic-acoustic transformation.

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Authors and Affiliations

  1. ZAO Research Institute of Introscopy, MNPO Spektr, ul. Usacheva 35, str. 1, Moscow, 119048, Russia

    V. F. Muzhitskii

  2. Physicotechnical Institute, Ural Division, Russian Academy of Sciences, ul. Kirova 132, Izhevsk, 426000, Russia

    V. B. Remezov & V. A. Komarov

Authors
  1. V. F. Muzhitskii
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  2. V. B. Remezov
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  3. V. A. Komarov
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Additional information

Original Russian Text © V.F. Muzhitskii, V.B. Remezov, V.A. Komarov, 2006, published in Defektoskopiya, 2006, Vol. 42, No. 11, pp. 14–28.

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Muzhitskii, V.F., Remezov, V.B. & Komarov, V.A. Fundamentals of electromagnetic-acoustic thickness measurements with attachable probes: 1. Direct electromagnetic-acoustic transformation in a tangential polarizing field. Russ J Nondestruct Test 42, 717–727 (2006). https://doi.org/10.1134/S1061830906110027

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  • DOI: https://doi.org/10.1134/S1061830906110027

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