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Proceedings Paper

Embedded Optical Fiber Strain Sensor For Composite Structure Applications
Author(s): W.Jeffrey Rowe; E O Rausch; P D Dean
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Paper Abstract

Optical fibers have been embedded in polymer-matrix fiber reinforced composite materials during fabrication. Subsequent testing has shown that optical coupling to, and transmission through, the embedded fibers can be accomplished. A radio frequency interferometric sensor instrument has been built to detect small changes in the optical fiber path length. Elongations smaller than 1 mm over a 1 m path, corresponding to a distributed strain threshold below 1000 μin./in., have been detected. The instrument has been used to demonstrate strain measurement with embedded fibers in graphite/epoxy test specimens. These measurements are compared with electrical resistance strain gage readings.

Paper Details

Date Published: 28 April 1987
PDF: 8 pages
Proc. SPIE 0718, Fiber Optic and Laser Sensors IV, (28 April 1987); doi: 10.1117/12.937526
Show Author Affiliations
W.Jeffrey Rowe, Lockheed-Georgia Company (United States)
E O Rausch, Lockheed-Georgia Company (United States)
P D Dean, Lockheed-Georgia Company (United States)

Published in SPIE Proceedings Vol. 0718:
Fiber Optic and Laser Sensors IV
Ramon P. DePaula; Eric Udd, Editor(s)

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