28 August 2016 An overview of interferometric metrology and NDT techniques and applications for the aerospace industry
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Abstract
We review some full-field interferometric techniques which have been successfully applied in different applications related to the aerospace industry. The first part of the paper concerns the long-wave infrared (LWIR) digital holographic interferometry which allows the measurement large displacements that occur when space structures undergo large temperature excursions. A second part of the paper concerns different developments in interferometric nondestructive testing (NDT) techniques intended to improve their usability in aerospace industrial environments. Among others, we discuss LWIR speckle interferometry for simultaneous deformation and temperature variation measurements and new post-processing techniques applied to shearography for an easier detection of flaws in composite structures.
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Marc P. Georges, Marc P. Georges, Cédric Thizy, Cédric Thizy, Fabian Languy, Fabian Languy, Jean-François Vandenrijt, Jean-François Vandenrijt, "An overview of interferometric metrology and NDT techniques and applications for the aerospace industry", Proc. SPIE 9960, Interferometry XVIII, 996007 (28 August 2016); doi: 10.1117/12.2240676; https://doi.org/10.1117/12.2240676
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