Artículo
Determination of the zero-order fringe position in digital speckle pattern interferometry
Determination of the zero-order fringe position in digital speckle pattern interferometry
Abstract
A method for determining the position of the zero-order fringe in a metrological experiment with digital speckle pattern interferometry is proposed. It is based on an averaging procedure with shifted images obtained before and after a load is applied. This technique is a complement to the phase-shifting methods. Experimental examples are shown.
Keywords
optical metrology
interferometry
speckle
speckle correlation
TV holography
This work is published under license Creative Commons Attribution 4.0 International (BY 4.0)
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