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12 May 1995 EFPI manufacturing improvements for enhanced performance and reliability
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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.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tuan A. Tran, Jonathan A. Greene, Kent A. Murphy, Vikram Bhatia, Mallika B. Sen, and Richard O. Claus "EFPI manufacturing improvements for enhanced performance and reliability", Proc. SPIE 2447, Smart Structures and Materials 1995: Industrial and Commercial Applications of Smart Structures Technologies, (12 May 1995); https://doi.org/10.1117/12.209345
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