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Optical Engineering

Mobile speckle interferometer in the long-wave infrared for aeronautical nondestructive testing in field conditions
Author(s): Jean-François Vandenrijt; Cédric Thizy; Igor Alexeenko; Giancarlo Pedrini; Jonathan Rochet; Birgit Vollheim; Iagoba Jorge; Pablo Venegas; Ion López; Wolfgang Osten; Marc P. Georges
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Paper Abstract

We present the development of a speckle interferometer based on a CO[sub] 2 laser and using a thermal infrared camera based on an uncooled microbolometer array. It is intended to be used for monitoring deformations as well as detecting flaws in aeronautical composites, with a smaller sensitivity to displacement compared to an equivalent system using visible (VIS) lasers. Moreover the long wavelength allows working with such interferometers outside the laboratory. A mobile system has been developed on the basis of previous laboratory developments. Then it is validated in a variety of industrial nondestructive testing applications in field working conditions.

Paper Details

Date Published: 11 April 2013
PDF: 9 pages
Opt. Eng. 52(10) 101903 doi: 10.1117/1.OE.52.10.101903
Published in: Optical Engineering Volume 52, Issue 10
Show Author Affiliations
Jean-François Vandenrijt, Univ. de Liège (Belgium)
Cédric Thizy, Univ. de Liège (Belgium)
Igor Alexeenko, Univ. Stuttgart (Germany)
Giancarlo Pedrini, Univ. Stuttgart (Germany)
Jonathan Rochet, OPTRION s.a. (Belgium)
Birgit Vollheim, InfraTec GmbH (Germany)
Iagoba Jorge, Fundación Centro de Tecnologias Aeronáuticas (Spain)
Pablo Venegas, Fundación Centro de Tecnologias Aeronáuticas (Spain)
Ion López, Fundación Centro de Tecnologias Aeronáuticas (Spain)
Wolfgang Osten, Univ. Stuttgart (Germany)
Marc P. Georges, Univ. de Liège (Belgium)

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