MULTIPLICATION OF MOIRE INTERFEROMETRY FRINGES
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摘要: 本文将云纹干涉法与载波法、倍增技术相结合,提出一种位移场和应变场云纹干涉条纹倍增方法,该方法使得云纹干涉法测量灵敏度提高四倍以上。文中对该方法给出了严格的理论推导和实验验证。Abstract: A ingenious combination of moire interferometry, carrier method and multiplication techniques is first proposed for multiplying moire interferometry fringes, including displacement fields and strain fields. The measuring sensitivity of moire interferometry method may be raised hy more than 4 times, by this multiplication method. Rigorous theoretical analysis is given. Experimental demonstration is conducted successfully in this paper.
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Key words:
- moire interferometry /
- carrier /
- multiplication /
- grating frequency /
- shearing /
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