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Speckle interferometry in the long-wave infrared for combining holography and thermography in a single sensor. Applications to nondestructive testing: the FANTOM project
Georges, Marc
2015In Lehmann, Peter; Osten, Wolfgang; Albertazzi, Armando (Eds.) Optical Measurement Systems for Industrial Inspection IX
 

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Keywords :
Speckle interferometry; CO2 lasers; long-wave infrared; thermography; microbolometer arrays; nondestructive testing; composite materials; aerospace applications
Abstract :
[en] Speckle interferometry in the thermal wavelengths range (long-wave infrared, 8-14 μm), combining a CO2 laser and recording with an uncooled microbolometer camera is presented. In this wavelength range specklegrams are affected by the thermal radiation emitted by objects at room temperature. This allows simultaneously capturing temperature and surface shape information about objects. The FANTOM project is based on this concept and an instrument was developed to take advantage of this natural data fusion. It has been used in a variety of nondestructive testing applications where both information are useful, specifically in aeronautical composite structures.
Disciplines :
Physics
Author, co-author :
Georges, Marc ;  Université de Liège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Speckle interferometry in the long-wave infrared for combining holography and thermography in a single sensor. Applications to nondestructive testing: the FANTOM project
Publication date :
June 2015
Event name :
SPIE Optical Metrology 2015
Event organizer :
SPIE
Event place :
Munich, Germany
Event date :
21-25 June 2015
By request :
Yes
Audience :
International
Main work title :
Optical Measurement Systems for Industrial Inspection IX
Author, co-author :
Lehmann, Peter
Osten, Wolfgang
Albertazzi, Armando
Publisher :
SPIE, Bellingham, WA, United States
Collection name :
Proceedings of SPIE, Vol. 9525
Pages :
95251L
European Projects :
FP7 - 213457 - FANTOM - Full-field Advanced Non Destructive Technique for On-line Thermo-Mechanical Measurements on Aeronautical Structures
Name of the research project :
FANTOM
Funders :
UE - Union Européenne [BE]
CE - Commission Européenne [BE]
Available on ORBi :
since 04 September 2015

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