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Application of digital holographic interferometry based on EALCD for measurement of displacement
- Source :
- Proceedings of SPIE; August 2010, Vol. 7544 Issue: 1 p75442I-75442I-7, 678986p
- Publication Year :
- 2010
-
Abstract
- Real-time test is one of the important parts in digital holographic interferometry researches. In this paper, taking advantage of electrically addressed liquid crystal display(EALCD) features of real-timely writing in and reading out images, the digital holographic interferometry system for real-time measurement of displacement is designed. In order to raise the contrast of the holographic hologram, the image enhancement based on the Laplacian operator has been used to process holograms. Based many advantages of CCD and EALCD, the holographic interferogram with high contrast can be obtained quickly, which can realize the precise measurement of small deformation and displacement of objects. Moreover, the measurement efficiency and precision is raised greatly.
Details
- Language :
- English
- ISSN :
- 0277786X
- Volume :
- 7544
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Proceedings of SPIE
- Publication Type :
- Periodical
- Accession number :
- ejs24280657
- Full Text :
- https://doi.org/10.1117/12.885365