Measurements of mechanical deformation using a full field optical interferometry and a fast camera

Carlos Pérez López; Fernando Mendoza Santoyo; Rodolfo Gutiérrez Zamarripa; Cristian Caloca Mendez

doi:10.1117/12.674603

10 February 2006 Measurements of mechanical deformation using a full field optical interferometry and a fast camera

Carlos Pérez López, Fernando Mendoza Santoyo, Rodolfo Gutiérrez Zamarripa, Cristian Caloca Mendez

Proceedings Volume 6046, Fifth Symposium Optics in Industry; 60461W (2006) https://doi.org/10.1117/12.674603
Event: Fifth Symposium Optics in Industry, 2005, Santiago De Queretaro, Mexico

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.

Citation Download Citation

Carlos Pérez López, Fernando Mendoza Santoyo, Rodolfo Gutiérrez Zamarripa, and Cristian Caloca Mendez "Measurements of mechanical deformation using a full field optical interferometry and a fast camera", Proc. SPIE 6046, Fifth Symposium Optics in Industry, 60461W (10 February 2006); https://doi.org/10.1117/12.674603

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