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Proceedings Paper

Measurements of aerospace materials and their interpretation for non-destructive testing
Author(s): Neil A. Salmon; Ian Mason; Sean Price; John Beale
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Paper Abstract

Millimetre and terahertz radiation penetration into materials enables non-destructive testing capabilities for the aerospace industry, either remotely using imaging technology or locally using microscope type diagnostics. This paper presents measurements made on Norcoat and Prosial, used in the aerospace industry for thermal insulation and on carbon fibre, used for its high strength weight ratio. Michelson interferometer measurements over the band 100 GHz to 1 THz, with a 30 GHz spectral resolution, are presented, together with images of a range of samples taken using a 35 GHz real-time imaging system. The measured optical properties of these materials are examined and used in modelling to predict signatures of failure modes in these materials when they are attached to cryogenic fuel tanks.

Paper Details

Date Published: 17 September 2009
PDF: 8 pages
Proc. SPIE 7485, Millimetre Wave and Terahertz Sensors and Technology II, 74850C (17 September 2009); doi: 10.1117/12.831137
Show Author Affiliations
Neil A. Salmon, QinetiQ Ltd. (United Kingdom)
Ian Mason, QinetiQ Ltd. (United Kingdom)
Sean Price, QinetiQ Ltd. (United Kingdom)
John Beale, QinetiQ Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 7485:
Millimetre Wave and Terahertz Sensors and Technology II
Keith A. Krapels; Neil A. Salmon, Editor(s)

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