Fringe carrier methods and their applications to interferometry of photomechanics

Jing Fang; Karl-Hans Laermann; Fulong Dai

doi:10.1117/12.172611

1 March 1994 Fringe carrier methods and their applications to interferometry of photomechanics

Jing Fang, Karl-Hans Laermann, Fulong Dai

Proceedings Volume 2004, Interferometry VI: Applications; (1994) https://doi.org/10.1117/12.172611
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

This paper reviews significant advances in fringe carrier techniques developed by the authors for acquiring derivative patterns of deformation and for automatic order determination of fringe patterns using optical and digital image processing. Various applications to many aspects of photomechanics are shown including, holographic-moire for the in-plane displacement derivative fringe patterns; speckle-shearing interferometry for the curvature patterns of bending plate and for the separated in-plane strain patterns; moire interferometry of real-time recordings for 3D displacement derivatives and phase-stepping technique based on the scanning of the fringe carrier for the phase demodulation; and the automatic order determination of the isochromatic fringes of dynamic photoelasticity and the transient fringes of geometrical moire.

Citation Download Citation

Jing Fang, Karl-Hans Laermann, and Fulong Dai "Fringe carrier methods and their applications to interferometry of photomechanics", Proc. SPIE 2004, Interferometry VI: Applications, (1 March 1994); https://doi.org/10.1117/12.172611

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KEYWORDS

Interferometry

Moire patterns

Modulation

Fringe analysis

Diffraction

Holographic interferometry

Holography

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