A simple electronic speckle shearing interferometer |
| |
| Authors: | W O Wong |
| |
| Institution: | Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong |
| |
| Abstract: | A new speckle shearing interferometer with simple setup is proposed. The interferometer can be converted easily from a speckle referenced speckle pattern interferometer into a speckle shearing interferometer and vice versa. A beamsplitter and a mirror are used to generate the shear. The amount of shear can be adjusted by simply rotating the mirror. The costs involved are low and it is particularly useful for fast inspection in non-destructive testing of structural integrity. Both the theoretical studies of the method of measurement and the experimental results are presented. |
| |
| Keywords: | Electronic speckle shearing interferometry Electronic speckle pattern interferometry Non-destructive testing |
| 本文献已被 ScienceDirect 等数据库收录！ |
