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https://doi.org/10.1117/1.602211
Title: | Digital phase-shifting shearography for slope measurement | Authors: | He, Y.M. Tay, C.J. Shang, H.M. |
Issue Date: | 1999 | Citation: | He, Y.M., Tay, C.J., Shang, H.M. (1999). Digital phase-shifting shearography for slope measurement. Optical Engineering 38 (9) : 1586-1590. ScholarBank@NUS Repository. https://doi.org/10.1117/1.602211 | Abstract: | An electronic speckle shearing interferometry method for the full field measurement of the slope of an object is presented. The object under study is placed on a rotating platform and illuminated by an expanded laser beam. Its image is recorded by a shearing CCD camera and stored directly into a computer. By recording two images before and after giving the object a small angle of rotation, the resulting correlation fringe pattern that represents the object surface slope can be obtained. The theory of the new method and some experimental results are presented. | Source Title: | Optical Engineering | URI: | http://scholarbank.nus.edu.sg/handle/10635/58110 | ISSN: | 00913286 | DOI: | 10.1117/1.602211 |
Appears in Collections: | Staff Publications |
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