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Choosing parameters of space-time signal processing in ultrasonic structuroscopy of cast-iron molds subjected to thermal cycling

  • Acoustic Methods
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Abstract

It is shown that in order to improve the accuracy of measuring the speed of ultrasonic vibrations in cast-iron products by echo-pulse method, one should use noise-immune space-time echosignal processing methods that improve signal–to–pattern-noise ratio. Signal parameters should also be adapted for characteristics of the test object. Requirements for the choice of probing-signal parameters have been established as well as optimum displacement step of a double-crystal transducer. The value of the speed of ultrasound at a time moment that precedes the destruction of cast-iron mold has been determined.

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Authors and Affiliations

  1. Moscow Power Engineering Institute, Moscow, 111250, Russia

    V. K. Kachanov, V. G. Kartashev, I. V. Sokolov, R. V. Kontsov & A. A. Sinitsyn

  2. Central Scientific Reasearch Institute of Machine Building and Metal Processing, Moscow, 115088, Russia

    L. V. Voronkova

Authors
  1. V. K. Kachanov
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  2. V. G. Kartashev
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  3. I. V. Sokolov
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  4. L. V. Voronkova
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  5. R. V. Kontsov
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  6. A. A. Sinitsyn
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Corresponding author

Correspondence to V. K. Kachanov.

Additional information

Original Russian Text © V.K. Kachanov, V.G. Kartashev, I.V. Sokolov, L.V. Voronkova, R.V. Kontsov, A.A. Sinitsyn, 2016, published in Defektoskopiya, 2016, No. 6, pp. 42–50.

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Kachanov, V.K., Kartashev, V.G., Sokolov, I.V. et al. Choosing parameters of space-time signal processing in ultrasonic structuroscopy of cast-iron molds subjected to thermal cycling. Russ J Nondestruct Test 52, 339–346 (2016). https://doi.org/10.1134/S1061830916060048

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  • DOI: https://doi.org/10.1134/S1061830916060048

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