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Proceedings Paper

Combined digital speckle photography (DSP) and interferometry
Author(s): Nils-Erik Molin; Angelica Svanbro; Per Gren; Mikael Sjoedahl
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Paper Abstract

A general problem in optical metrology is to measure a deformation field when this field is added to a translation or a rotational motion. Methods like Speckle Photography (SP) do handle large rigid body motions but the result might be of too poor accuracy to resolve the deformation field. Interferometric methods on the other hand might measure the deformation field but the bulk motion makes the fringes disappear. By combining digital speckle photography, with Speckle Interferometry, or with shearography, such measuring situations can be mastered.

Paper Details

Date Published: 13 June 2001
PDF: 6 pages
Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); doi: 10.1117/12.429579
Show Author Affiliations
Nils-Erik Molin, Lulea Univ. of Technology (Sweden)
Angelica Svanbro, Lulea Univ. of Technology (Sweden)
Per Gren, Lulea Univ. of Technology (Sweden)
Mikael Sjoedahl, Lulea Univ. of Technology (Sweden)

Published in SPIE Proceedings Vol. 4317:
Second International Conference on Experimental Mechanics
Fook Siong Chau; Chenggen Quan, Editor(s)

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