A NEW REAL-TIME METHOD OF MOIRE INTERFEROMETRY FOR DISPLACEMENT DERIVATIVE FRINGE PATTERNS

FANG, J
DAI, FL

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Publication date

January 1990

DOI

10.1016/0143-8166(90)90040-G

Publisher

工程光学与激光

Journal

issn:0143-8166

Abstract

A new method of moire interferometry is proposed in this paper to obtain the strain fringe pattern in real time. The specimen grating is illuminated by dual beams whose optical path-difference is larger than the coherence length of the laser. The diffractions of the grating are sheared by a glass wedge to fulfil the optical differentiation. The principles based on wavefront analysis are shown and an experimental verification is reported.OpticsSCI(E)EI3ARTICLE151-581

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A NEW REAL-TIME METHOD OF MOIRE INTERFEROMETRY FOR DISPLACEMENT DERIVATIVE FRINGE PATTERNS

Abstract

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A NEW REAL-TIME METHOD OF MOIRE INTERFEROMETRY FOR DISPLACEMENT DERIVATIVE FRINGE PATTERNS

Abstract

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