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Proceedings Paper

Optical fiber strain gauges for high-cycle fatigue monitoring of ceramic matrix composite materials
Author(s): Jonathan A. Greene; Carrie L. Kozikowski; Rob O'Neal; Stephen H. Poland; Michael P. Camden; Larry W. Simmons
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Paper Abstract

Optical fiber sensing techniques are ideal for applications where high-temperature, electromagnetic interference, or vibration cause traditional electrical sensors to become unreliable. Gold-coated, silica-based optical fibers can withstand temperatures up to 900 degrees C and sapphire fibers can be employed for temperatures as high as 2000 degrees C. We present dynamic strain and temperature measurements of ceramic matrix composite specimens using extrinsic Fabry-Perot interferometric fiber optic strain and temperature sensors. The extremely low-mass and rugged construction of the sensors will allow them to survive high- cycle, high-temperature fatigue testing.

Paper Details

Date Published: 15 March 1998
PDF: 6 pages
Proc. SPIE 3399, Process Control and Sensors for Manufacturing, (15 March 1998); doi: 10.1117/12.302555
Show Author Affiliations
Jonathan A. Greene, F&S, Inc. (United States)
Carrie L. Kozikowski, F&S, Inc. (United States)
Rob O'Neal, F&S, Inc. (United States)
Stephen H. Poland, F&S, Inc. (United States)
Michael P. Camden, Air Force Research Lab. (United States)
Larry W. Simmons, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 3399:
Process Control and Sensors for Manufacturing
Richard H. Bossi; David M. Pepper, Editor(s)

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