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Proceedings Paper

EFPI manufacturing improvements for enhanced performance and reliability
Author(s): Tuan A. Tran; Jonathan A. Greene; Kent A. Murphy; Vikram Bhatia; Mallika B. Sen; Richard O. Claus
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Paper Abstract

The recent progress in the performance and reliability of the fiber optic-based extrinsic Fabry-Perot interferometric (EFPI) strain sensor is reported. The developments include refined fabrication techniques and improved quality of constituent elements for enhanced durability and greater operating temperature range, higher strain sensitivity using high-finesse cavities, modified sensor-head for complete strain-field characterization, absolute, real-time and inexpensive measurements employing white light interferometry, and multipoint, distributed sensing using CDMA and path-matching multiplexing techniques. It is shown that these improvements have assisted in overcoming the limitations of the conventional EFPI sensor and made possible the large- scale commercialization of the state-of-the-art EFPI-based strain sensing system.

Paper Details

Date Published: 12 May 1995
PDF: 12 pages
Proc. SPIE 2447, Smart Structures and Materials 1995: Industrial and Commercial Applications of Smart Structures Technologies, (12 May 1995); doi: 10.1117/12.209345
Show Author Affiliations
Tuan A. Tran, Fiber and Sensor Technologies, Inc. (United States)
Jonathan A. Greene, Fiber and Sensor Technologies, Inc. (United States)
Kent A. Murphy, Fiber and Sensor Technologies, Inc. (United States)
Vikram Bhatia, Virginia Polytechnic Institute and State Univ. (United States)
Mallika B. Sen, Virginia Polytechnic Institute and State Univ. (United States)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 2447:
Smart Structures and Materials 1995: Industrial and Commercial Applications of Smart Structures Technologies
C. Robert Crowe; Gary L. Anderson, Editor(s)

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