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Proceedings Paper

Fiber optic strain, temperature and shape sensing via OFDR for ground, air and space applications
Author(s): Joseph Bos; Justin Klein; Mark Froggatt; Eric Sanborn; Dawn Gifford
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Paper Abstract

Optical Frequency Domain Reflectometry (OFDR) is used to interrogate fiber sensors adhered to various structures. Temperatures in excess of 1000°C are observed on a thermal-barrier coated stainless steel test plate as it is exposed to a high-temperature torch. The surface temperature distribution is mapped with 5 mm spatial resolution at 100 Hz, revealing large spatial and temporal thermal gradients at coating defect locations. Results and response times are compared with conventional K type thermocouples. Also presented in this work, are real-time position, shape and twist measurements of a simple structure as it is subjected to various loads.

Paper Details

Date Published: 24 September 2013
PDF: 15 pages
Proc. SPIE 8876, Nanophotonics and Macrophotonics for Space Environments VII, 887614 (24 September 2013); doi: 10.1117/12.2025711
Show Author Affiliations
Joseph Bos, Luna Innovations Inc. (United States)
Justin Klein, Luna Innovations Inc. (United States)
Mark Froggatt, Luna Innovations Inc. (United States)
Eric Sanborn, Luna Innovations Inc. (United States)
Dawn Gifford, Luna Innovations Inc. (United States)


Published in SPIE Proceedings Vol. 8876:
Nanophotonics and Macrophotonics for Space Environments VII
Edward W. Taylor; David A. Cardimona, Editor(s)

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