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|Title:||The measurement of slope using shearography|
|Authors:||Tay, C.J. |
|Source:||Tay, C.J.,Chau, F.S.,Shang, H.M.,Shim, V.P.W.,Toh, S.L. (1991). The measurement of slope using shearography. Optics and Lasers in Engineering 14 (1) : 13-24. ScholarBank@NUS Repository.|
|Abstract:||This paper presents an optical method which is based on speckle-shearing interferometry for the measurement of the slope at any point of an object. The object under study is illuminated by an expanded laser beam and its image is recorded on a photographic plate placed at the image plane of an image-shearing camera. A second exposure on the photographic film is made after the light source is moved slightly. The resulting photograph yields a fringe pattern which represents lines of constant displacement gradients. Theory of the method as well as some experimental results are presented. © 1990.|
|Source Title:||Optics and Lasers in Engineering|
|Appears in Collections:||Staff Publications|
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