Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/26241
Title: A simple electronic speckle shearing interferometer
Authors: Wong, WO 
Keywords: Electronic speckle shearing interferometry
Electronic speckle pattern interferometry
Non-destructive testing
Issue Date: 2002
Publisher: Elsevier
Source: Optics and laser technology, 2002, v. 34, no. 5, p. 399-403 How to cite?
Journal: Optics and laser technology 
Abstract: A new speckle shearing interferometer with simple setup is proposed. The interferometer can be converted easily from a speckle referenced speckle pattern interferometer into a speckle shearing interferometer and vice versa. A beamsplitter and a mirror are used to generate the shear. The amount of shear can be adjusted by simply rotating the mirror. The costs involved are low and it is particularly useful for fast inspection in non-destructive testing of structural integrity. Both the theoretical studies of the method of measurement and the experimental results are presented.
URI: http://hdl.handle.net/10397/26241
ISSN: 0030-3992
DOI: 10.1016/S0030-3992(02)00036-1
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