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Proceedings Paper

Advanced strategies for spatially resolved analyte mapping with distributed fiber optic sensors for environmental and process applications
Author(s): Radislav A. Potyrailo; Gary M. Hieftje
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Paper Abstract

The evolution of approaches to simultaneous real-time acquisition of analytical data from multiple locations is analyzed. Greatest emphasis is placed on optical time-of- flight (OTOF) chemical detection when the measurements are taken along the length of a single continuous extended-length 'distributed' sensing element. The attractive features of such distributed sensing element fabricated by immobilization of chemically sensitive reagents directly into the original cladding of a conventional plastic-clad silica (PCS) optical fiber are demonstrated. Several signal generation and processing methods are devised to address the requirements for spatially resolved chemical sensing. These requirements include high signal levels, a fairly uniform detection limit over the length of the sensing fiber, measurements with dynamically quenched fluorophores, and high spatial resolution. Applications of OTOF distributed chemical sensors for spatially resolved analyte mapping for environmental and process applications are discussed.

Paper Details

Date Published: 10 February 1999
PDF: 14 pages
Proc. SPIE 3534, Environmental Monitoring and Remediation Technologies, (10 February 1999); doi: 10.1117/12.339044
Show Author Affiliations
Radislav A. Potyrailo, General Electric Corporate Research and Development (United States)
Gary M. Hieftje, Indiana Univ. (United States)

Published in SPIE Proceedings Vol. 3534:
Environmental Monitoring and Remediation Technologies
Tuan Vo-Dinh; Robert L. Spellicy, Editor(s)

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