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Proceedings Paper

Fiber optic fugitive emission dosimeter
Author(s): John Peck; Mark L. Wilson; Michael L. Rhodes
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Paper Abstract

Federal regulations require companies to monitor leaks from valves, flanges, and pipes (fugitive emissions) in industrial plants on a regular basis. Honeywell has been conducting research into the use of fiber optic sensors for this purpose. The result ia a low-cost chemical dosimeter that is able to detect a variety of fugitive emissions, including various volatile organic compounds (VOCs) down to a few hundred parts per million (ppm). This sensor uses a fluorescent dye that exhibits spectral shifts when its chemical environment is changed. Greater stability is achieved because a spectral change is monitored and the sensor is not dependent on a single relative intensity measurement. Dyes are integrated into an optically clear polymer and immobilized on the tip of an optical fiber. When an analyte permeates into the polymer, a chemical interaction takes place that changes the dye's environment and therefore its spectral fluorescence. With most chemicals of interest, this is a reversible effect. Using a 'smart signal processor' (SSP), a real-time analysis can be made at a distant location. This paper discusses the details and results of a fiber optic sensor incorporating these concepts.

Paper Details

Date Published: 10 December 1996
PDF: 7 pages
Proc. SPIE 2836, Chemical, Biochemical, and Environmental Fiber Sensors VIII, (10 December 1996); doi: 10.1117/12.260587
Show Author Affiliations
John Peck, Honeywell Technology Ctr. (United States)
Mark L. Wilson, Honeywell Technology Ctr. (United States)
Michael L. Rhodes, Honeywell Technology Ctr. (United States)

Published in SPIE Proceedings Vol. 2836:
Chemical, Biochemical, and Environmental Fiber Sensors VIII
Robert A. Lieberman, Editor(s)

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