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14 August 2001 Evaluation of error introduced by in-plane system using spherical wavefronts
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Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437100
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina
Abstract
Commonly, in-plane sensitive arrangements use tow symmetrical collimated wavefronts for object surface illumination. However, this is a limitation when large objects surface have to be analyzed. In this case spherical illumination is needed. Using this kind of optical set-up, the present work shows results of fracture measuring by using moire and speckle interferometric methods. Non- collimated symmetrical dual-beams, having a sensitivity vector varying with the position are performed. These methods are capable of detecting in-plane and out-of-plane deformations due to the use of divergent beams. It is calculated the error to each component of the sensitivity vector. Experimental result of fracture measurements are shown.
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Amalia Garcia Martinez, Ramon Rodriguez-Vera, J. A. Rayas, and J. H. Puga "Evaluation of error introduced by in-plane system using spherical wavefronts", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437100
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