A Phase Compensation Technique of Sampling Moiré Method for Accurate Single-Shot Phase Analysis

Abstract:

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Recently, a technique for fast and accurate phase analysis called sampling moiré method has been developed for measurement of small-displacement distribution. In this study, a distribution of phase error caused by linear interpolation in case with mismatch between the sampling pitch and the grating pitch is theoretically analyzed. Moreover, a technique for effective phase compensation is proposed to reduce the periodic phase error. The performance of our compensation method is validated by a computer simulation. Phase analysis can be performed more accurately even in the case that the sampling pitch does not match to the grating pitch strictly.

Info:

Periodical:

Edited by:

R. L. Burguete, M. Lucas, E. A. Patterson, S. Quinn

Pages:

243-248

DOI:

10.4028/www.scientific.net/AMM.70.243

Citation:

S. Ri et al., "A Phase Compensation Technique of Sampling Moiré Method for Accurate Single-Shot Phase Analysis", Applied Mechanics and Materials, Vol. 70, pp. 243-248, 2011

Online since:

August 2011

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Price:

$35.00

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