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Proceedings Paper

Multiplexed measurements of strain using short- and long-gauge length sensors
Author(s): Harald Geiger; Ming Gang Xu; John P. Dakin; Nicholas C. Eaton; P. J. Chivers
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Paper Abstract

The paper discusses two complimentary optical fiber sensing techniques which have been researched for structural monitoring applications. The short-gauge-length sensor system is based on fiber gratings and has achieved a strain resolution below 1 microstrain. The long-gauge-length sensor system has achieved 100 micron spatial resolution using a new OTDR technique. Results are presented for surface-mounted and embedded sensors. Both sensors systems can be multiplexed to make more efficient use of the interrogating unit. Their system designs should be capable of being developed to meet real engineering applications.

Paper Details

Date Published: 15 September 1995
PDF: 10 pages
Proc. SPIE 2507, Distributed and Multiplexed Fiber Optic Sensors V, (15 September 1995); doi: 10.1117/12.219628
Show Author Affiliations
Harald Geiger, Univ. of Southampton (United Kingdom)
Ming Gang Xu, Univ. of Southampton (United Kingdom)
John P. Dakin, Univ. of Southampton (United Kingdom)
Nicholas C. Eaton, Westland Aerospace (United Kingdom)
P. J. Chivers, Westland Aerospace (United Kingdom)

Published in SPIE Proceedings Vol. 2507:
Distributed and Multiplexed Fiber Optic Sensors V
John P. Dakin; Alan D. Kersey, Editor(s)

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