Hurst exponent analysis of moving metallic surfaces

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

Physica A: Statistical Mechanics and its Applications, 2013, vol. 392, issue 21, 5307-5312

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.

Keywords: Hurst exponent; Dynamical speckle pattern; Rough surfaces (search for similar items in EconPapers)
Date: 2013
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:392:y:2013:i:21:p:5307-5312

DOI: 10.1016/j.physa.2013.07.005

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