Analysis of measurement principle of moire interferometer using Fourier method

Hai-Ling Wang; Peng Cheng Miao; Anzhi He

doi:10.1117/12.48673

1 December 1991 Analysis of measurement principle of moiré interferometer using Fourier method

Hai-Ling Wang, Peng Cheng Miao, Anzhi He

Proceedings Volume 1527, Current Developments in Optical Design and Optical Engineering; (1991) https://doi.org/10.1117/12.48673
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

A simple spatial filtering is added in moire deflectometry (MD) which raises the sensitivity, improves the contrast of moire patterns, and makes the viewing plate conjugate to the phase objects under test. This modified system is called moire interferometer (MI). Using the Fourier method, this paper analyzes the measurement principle of MI and obtains a strict relationship between a tested wave function and the shift of moire fringes.

Citation Download Citation

Hai-Ling Wang, Peng Cheng Miao, and Anzhi He "Analysis of measurement principle of moiré interferometer using Fourier method", Proc. SPIE 1527, Current Developments in Optical Design and Optical Engineering, (1 December 1991); https://doi.org/10.1117/12.48673

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