✦ LIBER ✦
A new method for generating and analysing digital speckle shearing correlation fringe patterns
✍ Scribed by Y.M He; C.J Tay; H.M Shang
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 381 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0030-3992
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✦ Synopsis
A method for generating a high visibility digital speckle shearing fringe pattern is proposed. A three-step phase shifting technique which involves the introduction of arbitrary phases is utilized. The phase shifting technique is carried out using a rotating mirror and a theoretical model which involves a linear correlation algorithm is discussed. Experimental results showing correlation fringe patterns and a deformation phase map are presented.