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Hurst exponent analysis of moving metallic surfaces

Author

Listed:
  • Soares, H.C.
  • da Silva, L.
  • Lobão, D.C.
  • Caetano, D.P.
  • Huguenin, J.A.O.

Abstract

We report on the application of Hurst exponent analysis to digital speckle patterns for investigating moving rough surfaces in the presence of defects. Digital speckle patterns were generated by recording the scattered light from moving surfaces illuminated by a laser beam. It was found that it is possible to identify the presence of the defects by means of the variation of the Hurst exponent along the sample.

Suggested Citation

  • Soares, H.C. & da Silva, L. & Lobão, D.C. & Caetano, D.P. & Huguenin, J.A.O., 2013. "Hurst exponent analysis of moving metallic surfaces," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(21), pages 5307-5312.
  • Handle: RePEc:eee:phsmap:v:392:y:2013:i:21:p:5307-5312
    DOI: 10.1016/j.physa.2013.07.005
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    Citations

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    Cited by:

    1. Dias, M.R.B. & Junior, A.O. Castro & Dias, C.P. & de Carvalho, S.A. & Huguenin, J.A.O. & da Silva, L., 2019. "Monitoring defects of a moving metallic surface through Tsallis entropic segmentation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 534(C).
    2. Dias, M.R.B. & Dornelas, D. & Balthazar, W.F. & Huguenin, J.A.O. & da Silva, L., 2017. "Lacunarity study of speckle patterns produced by rough surfaces," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 486(C), pages 328-336.

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