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Proceedings Paper

Nondestructive testing of wood defects by ESSPI
Author(s): Jie Lu; Guang ping Zou
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Paper Abstract

The aim of this work is to use non-destructive optical measurement techniques for defect detection. This paper presents the application of electronic shearography speckle pattern interferometry (ESSPI) to detect visible and invisible on the surface defects of a pine wood specimen The different artificial defects were created under the pine wood surface to simulate "defected" samples. The ESSPI set-up based on a He-Ne CW laser has been developed and used for studying the possible locations, sizes and shapes of wood defects. The results were real time and well agreed with the actual defects. Therefore the present method is feasible.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73753G (25 August 2009); doi: 10.1117/12.839255
Show Author Affiliations
Jie Lu, Harbin Engineering Univ. (China)
Guang ping Zou, Harbin Engineering Univ. (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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