Speckle shear interferometry |
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| Authors: | R S Sirohi |
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| Institution: | The author is at the Engineering Design Centre, Indian Institute of Technology, Madras 600 036, India |
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| Abstract: | A number of speckle shear methods and their applications to ndt are discussed. Experiments using multiple apertures with custom-made optical elements have shown that in-plane displacement, slope and curvature patterns can be obtained by filtering through appropriate haloes. |
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| Keywords: | interferometry speckle non-destructive testing |
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