2004•Journal of Optical TechnologyRequires access

Using speckle interferometry to study longitudinal surface displacements in metallic beam samples

V. I. Smolyak, A. L. Tkhoruk, Taras I. Voronyak, O. T. Oleinik

Abstract

A method is proposed for checking the reliability of a quantitative estimate of longitudinal displacements in metallic beam samples when they are investigated by electronic speckle interferometry and phase-shifting speckle interferometry. Theoretical and experimental results are presented for the investigation of longitudinal surface displacements of samples by electronic difference speckle interferometry and phase-shifting speckle interferometry. © 2004 Optical Society of America

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Key concepts: Electronic speckle pattern interferometry, Speckle pattern, Interferometry, Speckle imaging, Optics, Phase (matter), Materials science, Shearography