21 October 2004 Three-illumination-source position optimization for interferometry
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Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.591955
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela
Abstract
When it is carried out to perform a three dimensional evaluation of displacements, it has been proposed ESPI systems which uses three illumination beams or the use of three sensors. The same technique has been used by digital holography and shearography. The different sensitivity vectors associated to each illumination beam let us permit to calculate the displacement in each direction by sensitivity matrix. In the present work, it is showed the sensitivity components for each source in the case of optical set-up with three divergent iluminating beams, where the sources position makes possible measure the u, v and w components with a weight factor approximately equal respecting to set-up sensitivity.
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Amalia Garcia Martinez, Amalia Garcia Martinez, J. A. Rayas, J. A. Rayas, Ramon Rodriguez-Vera, Ramon Rodriguez-Vera, Hugo J. Puga, Hugo J. Puga, } "Three-illumination-source position optimization for interferometry", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.591955; https://doi.org/10.1117/12.591955
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