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Proceedings Paper

Practical applications of extrinsic Fabry-Perot interferometric (EFPI) sensors
Author(s): Kent A. Murphy
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Paper Abstract

Fiber sensors have found numerous industrial, military and civil applications in the last decade. These sensors possess small size and high sensitivity, are immune to electromagnetic interference and can be easily modified for distributed or multi-parameter measurement. The extrinsic Fabry-Perot interferometric (EFPI) fiber optic sensor, though it retains all these advantages, still has a few limitations which have prevented its large scale commercialization as an effective strain gage. We discuss these limitations and report the status of manufacturing techniques. Recent progress in the development of extrinsic Fabry-Perot interferometric sensor is reported. Techniques for absolute measurement are demonstrated and adhesives and endface coatings for sensor fabrication are analyzed. Many different applications are presented along with discussions of packaging and attachment issue problems and solutions. The applications include high temperature, low temperature, and harsh environments such as Mach 6 wind tunnels and rock drills.

Paper Details

Date Published: 25 October 1996
PDF: 11 pages
Proc. SPIE 2839, Fiber Optic and Laser Sensors XIV, (25 October 1996); doi: 10.1117/12.255384
Show Author Affiliations
Kent A. Murphy, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 2839:
Fiber Optic and Laser Sensors XIV
Ramon P. DePaula; John W. Berthold, Editor(s)

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