Spatial techniques of fringe pattern analysis in interferometry

Malgorzata Kujawinska; Andrzej Spik

doi:10.1117/12.57169

1 August 1991 Spatial techniques of fringe pattern analysis in interferometry

Malgorzata Kujawinska, Andrzej Spik

Proceedings Volume 1391, Laser Technology III; (1991) https://doi.org/10.1117/12.57169
Event: Laser Technology III, 1990, Szczecin, Poland

Abstract

The spatial techniques providing the robust technique for phase measurement are presented specifically the phase-stepped and Fourier transform methods. The grating phase-shifting approach is implemented into holographic speckle and moire interefrometry arrangements. The three-channel versions of these interferometers enable the measurements of dynamic events and in adverse conditions. For the technique where the fringes with carrier frequency are avaliable the refinements of Fourier transform method to facilitate measurements are presented. The advantages and disadvantages of these two spatial methods in comparison with temporal techniques are given.

Citation Download Citation

Malgorzata Kujawinska and Andrzej Spik "Spatial techniques of fringe pattern analysis in interferometry", Proc. SPIE 1391, Laser Technology III, (1 August 1991); https://doi.org/10.1117/12.57169

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