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Proceedings Paper

Measurements of mechanical deformation using a full field optical interferometry and a fast camera
Author(s): Carlos Pérez López; Fernando Mendoza Santoyo; Rodolfo Gutiérrez Zamarripa; Cristian Caloca Mendez
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Paper Abstract

Full field optical interferometry known as ESPI (Electronic Speckle Pattern Interferometry), has been applied to dynamical deformations on solid and semisolid objects. Although microscopic (1 to 30 micrometers), these deformations offer enough information to know even an early crack detection of the material. In industrial and biomedical environments however there is a lot of noise bigger than the signal we try to recovery, therefore is necessary to compensate mechanical or digitally or both. In this paper we will discuss the basic operating principle of the interferometer and analyze its performance. The technique use a continue wave laser for illuminating the tested object. The transient event is recorded by an ultra fast digital image camera. Data processing is completed with a help of a spatio-temporal algorithm. Some results are presented.

Paper Details

Date Published: 10 February 2006
PDF: 5 pages
Proc. SPIE 6046, Fifth Symposium Optics in Industry, 60461W (10 February 2006); doi: 10.1117/12.674603
Show Author Affiliations
Carlos Pérez López, Ctr. de Investigaciones en Óptica, A. C. (Mexico)
Fernando Mendoza Santoyo, Ctr. de Investigaciones en Óptica, A. C. (Mexico)
Rodolfo Gutiérrez Zamarripa, Ctr. de Investigaciones en Óptica, A. C. (Mexico)
Cristian Caloca Mendez, Ctr. de Investigaciones en Óptica, A. C. (Mexico)


Published in SPIE Proceedings Vol. 6046:
Fifth Symposium Optics in Industry

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