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Proceedings Paper

3D displacement and strain measurements using simultaneously three lasers
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Paper Abstract

In this work we present an extension of the use of three different lasers and only one high resolution monochrome sensor. Besides the advantage to obtain the 3D deformation in just two images it is now possible due the geometry of the optical setup to obtain the strain gradients in the object. The system records two consecutive images where each one contains three holograms in it. This configuration gives the opportunity to use long coherence length lasers which allows the measurement of large object areas. A series of digital holographic interferograms are recorded for a particular metallic sample during a well known mechanical deformation. From the system it is possible to obtain in just a couple of images the orthogonal displacement components u, v and w and then the strain gradient maps. Latter gives more information about the mechanical response for an object during a micro deformation.

Paper Details

Date Published: 2 November 2011
PDF: 8 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 80117Y (2 November 2011); doi: 10.1117/12.903381
Show Author Affiliations
Araceli Sanchez-A., Ctr. de Investigaciones en Óptica, A.C. (Mexico)
M. H. De la Torre-Ibarra, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Tonatiuh Saucedo-A., Univ. Autónoma de Zacatecas (Mexico)
F. Mendoza Santoyo, Ctr. de Investigaciones en Óptica, A.C. (Mexico)


Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World
Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Rufino Díaz-Uribe; Rufino Díaz-Uribe, Editor(s)

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