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Direct electrodynamic electromagnetic-acoustic transformation in a normal polarizing field: III. Dependence of the acoustic field on macroscopic parameters of transformation medium

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Abstract

Frequency dependences of shear displacements in solids with different conductivities are numerically calculated on the basis of exact analytical expressions for projections of elastic displacements in a solid. It is shown that shear displacements in well-conducting materials at not too high quasistationary frequencies are independent of the electrical conductivity. This is determined by both the skin effect and the fact that the main agent responsible for transferring the energy of a source-generated quasi-stationary field is its magnetic component. In relatively weakly conducting materials, displacements may be proportional to the electrical conductivity. For well-conducting materials, a good approximation containing no integrals and allowing determination of both the transformation efficiency and angle of injection of elastic vibrations near the radiation-stabilization point is obtained.

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References

  1. Komarov, V.A., Muzhitskii, V.F., and Gurevich, S.Yu., Teoriya fizicheskikh polei. T. III. Svyazannye polya (Theory of Physical Fields: III. Coupled Fields), Chelyabinsk-Izhevsk: Yuzh. Ural. Gos. Univer., 2000.

    Google Scholar 

  2. Muzhitskii, V.F., Remezov, V.B., and Komarov, V.A., Fundamentals of EMA Thickness Measurements with Attachable Transducers: I. Direct EMAT in a Normal Polarizing Field, Defektoskopiya, 2006, no. 10, pp. 40–58 [Rus. J. Nondestr. Test. (Engl. Transl.), 2006, vol. 42, no. 10, pp. 667–681].

  3. Muzhitskii, V.F., Remezov, V.B., and Komarov, V.A., Direct Electrodynamic EMAT in a Normal Polarizing Field: II. Acoustic Field in the Transition Radiation Zone, Defektoskopiya, 2007, no. 8, pp. 53–64 [Rus. J. Nondestr. Test. (Engl. Transl.), 2007, vol. 43, no. 8, pp. 532–541].

  4. Il’yasov, R.S., Doctoral (Phys.-Math.) Dissertation, Izhevsk: FTI UrO RAN, 2002.

    Google Scholar 

  5. Il’yasov, R.S. and Borovkova, M.A., Electromagnetic-Acoustic Transformation of Bulk Waves in Ferrites, Defektoskopiya, 1996, no. 1, pp. 33–40.

  6. Il’in, I.V., Cand. Sci. (Tech.) Dissertation, Leningrad: Leningr. Elektrotekhn. Inst. im. V.I. Ul’yanova, 1979.

    Google Scholar 

  7. Kharitonov, A.V., Doctoral (Phys.-Math.) Dissertation, Moscow: AKIN AN SSSR, 1984.

    Google Scholar 

  8. Muzhitskii, V.F., Remezov, V.B., and Komarov, V.A., Fundamentals of EMA Thickness Measurements with Attachable Transducers: III. Inverse and Double EMAT in a Normal Polarizing Field, Defektoskopiya, 2007, no. 1, pp. 64–79 [Rus. J. Nondestr. Test. (Engl. Transl.), 2007, vol. 43, no. 1, pp. 48–61].

  9. Shkarlet, Yu.M., Principles of the General Theory of Excitation of Acoustic Vibrations by Harmonic Force Fields, Defektoskopiya, 1974, no. 3, pp. 84–95.

  10. Komarov, V.A. and Muzhitskii, V.F., Teoriya fizicheskikh polei. Ch. 1. Elektromagnitnoe Pole (Theory of Physical Fields: Electromagnetic Field), Izhevsk: RIO UDGU, 1997, part I.

    Google Scholar 

  11. Meredith, D.J., Watts-Tobin, R.V., and Dobbs, E.R., Electromagnetic Generation of Ultrasonic Waves in Metals, Acoust. Soc. Amer., 1969, vol. 45, no. 6, pp. 1393–1401.

    Article  CAS  Google Scholar 

  12. Muzhitskii, V.F., Remezov, V.B., and Komarov, V.A., Direct Electrodynamic EMAT in a Normal Polarizing Field: I. Dependence on the Gap according to the Spectral Theory, Defektoskopiya, 2007, no. 8, pp. 40–52 [Rus. J. Nondestr. Test. (Engl. Transl.), 2007, vol. 43, no. 8, pp. 521–531].

  13. Skuchik, E., Osnovy akustiki. T. 1 (Principles of Acoustics), Moscow: Mir, 1976, vol. 1.

    Google Scholar 

  14. Komarov, V.A., Kvazistatsionarnoe elektromagnitno-akusticheskoe preobrazovanie v metallakh (Quasi-Stationary EMAT in Metals), Sverdlovsk: UNTs AN SSSR, 1986.

    Google Scholar 

  15. Gradshtein, I.S. and Ryzhik, I.M., Tablitsy integralov summ, ryadov i proizvedenii (Tables of Integrals, Sums, Series, and Products), Moscow: Nauka, 1108.

    Google Scholar 

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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 & V. B. Remezov

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

    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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Correspondence to V. F. Muzhitskii.

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Original Russian Text © V.F. Muzhitskii, V.B. Remezov, V.A. Komarov, 2008, published in Defektoskopiya, 2008, Vol. 44, No. 8, pp. 21–34.

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Muzhitskii, V.F., Remezov, V.B. & Komarov, V.A. Direct electrodynamic electromagnetic-acoustic transformation in a normal polarizing field: III. Dependence of the acoustic field on macroscopic parameters of transformation medium. Russ J Nondestruct Test 44, 532–541 (2008). https://doi.org/10.1134/S1061830908080032

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  • DOI: https://doi.org/10.1134/S1061830908080032

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