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https://doi.org/10.1117/12.323331
| Title: | Digital shearography for slope measurement | Authors: | Shang, H.M. He, Y.M. Tay, C.J. |
Keywords: | Correlation fringe pattern Digital speckle shearin Slope |
Issue Date: | 1998 | Citation: | Shang, H.M., He, Y.M., Tay, C.J. (1998). Digital shearography for slope measurement. Proceedings of SPIE - The International Society for Optical Engineering 3407 : 304-309. ScholarBank@NUS Repository. https://doi.org/10.1117/12.323331 | Abstract: | This paper presents an electronic speckle shearing interferometry optical method for the full field measurement of the slope of an object. The object under study is placed on a rotatable 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 the two images before and after giving the object a small angle of rotation, the resulting correlation fringe pattern which represents the object surface slope can be obtained. Theory of the new method and some experimental results are presented. | Source Title: | Proceedings of SPIE - The International Society for Optical Engineering | URI: | http://scholarbank.nus.edu.sg/handle/10635/74982 | ISSN: | 0277786X | DOI: | 10.1117/12.323331 |
| Appears in Collections: | Staff Publications |
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