Hurst exponent analysis of moving metallic surfaces

被引：10

作者：

Soares, H. C. ^{[1
]}

da Silva, L. ^{[2
]}

Lobao, D. C. ^{[1
,3
]}

Caetano, D. P. ^{[3
]}

Huguenin, J. A. O. ^{[1
,2
]}

机构：

[1] Univ Fed Fluminense, Programa Posgrad Modelagem Computac Ciencia & Tec, BR-27255125 Volta Redonda, RJ, Brazil

[2] Univ Fed Fluminense, Inst Ciencias Exatas, Dept Fis, BR-27213415 Volta Redonda, RJ, Brazil

[3] Univ Fed Fluminense, Dept Ciencias Exatas, BR-27255125 Volta Redonda, RJ, Brazil

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2013年 / 392卷 / 21期

关键词：

Hurst exponent; Dynamical speckle pattern; Rough surfaces; DIGITAL SPECKLE PATTERNS; TIME-SERIES; ROUGHNESS; INTENSITY;

D O I：

10.1016/j.physa.2013.07.005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：5307 / 5312

页数：6

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