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Proceedings Paper

Strain measurements of a fiber loop rosette using high spatial resolution Rayleigh scatter distributed sensing
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Paper Abstract

Strain is measured with high spatial resolution on fiber loops bonded to a metal test sample to form a fiber rosette. Strain measurements are made using an Optical Backscatter Reflectometer to detect changes in the phase of the Rayleigh Scatter of the fiber with 160 μm spatial resolution along the length of the fiber. Using this experimental set-up, applied strain levels as well as the axis along which the loads are applied are measured. Thermal gradients are also detected. The high spatial resolution and strain sensitivity of this technique enable highly functional fiber rosettes formed of small diameter loops of standard low-bend-loss optical fiber.

Paper Details

Date Published: 8 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 765333 (8 September 2010); doi: 10.1117/12.866536
Show Author Affiliations
Dawn K. Gifford, Luna Technologies (United States)
Alex K. Sang, Luna Technologies (United States)
Steven T. Kreger, Luna Technologies (United States)
Mark E. Froggatt, Luna Technologies (United States)

Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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