Flaw detection using lock-in temporal speckle pattern interferometry and thermal waves

Andrés E. Dolinko; Guillermo H. Kaufmann

doi:10.1117/1.2801725

1 November 2007 Flaw detection using lock-in temporal speckle pattern interferometry and thermal waves

Andrés E. Dolinko; Guillermo H. Kaufmann

Author Affiliations +

Optical Engineering, 46(11), 115601 (2007). https://doi.org/10.1117/1.2801725

Abstract

This paper presents the evaluation of a removal method to cancel the thermal convection effect that is generated in vertically positioned metal plates loaded by thermal waves when a lock-in temporal speckle pattern interferometry technique is used to detect hidden flaws. Additionally, the resolution of this technique to detect two nearby flaws is also analyzed.

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Andrés E. Dolinko, Andrés E. Dolinko, Guillermo H. Kaufmann, Guillermo H. Kaufmann, } "Flaw detection using lock-in temporal speckle pattern interferometry and thermal waves," Optical Engineering 46(11), 115601 (1 November 2007). https://doi.org/10.1117/1.2801725 . Submission:

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