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Proceedings Paper

Fiber optic sensor for continuous monitoring of chlorinated solvents in the vadose zone and in groundwater: field test results
Author(s): Paul F. Daley; Bill W. Colston; Steve B. Brown; Kevin C. Langry; Fred P. Milanovich
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Paper Abstract

A fiber optic chemical sensor has been designed for groundwater and vadose zone monitoring of volatile halogenated hydrocarbons. The principle of detection is a quantitative, irreversible chemical reaction that forms visible light absorbing products. This absorption is measured remotely using fiber optics. Modifications of our previous sensor design have resulted in lower detection limits and increased durability. In this paper we describe the measurement system and present the new sensor design along with calibration data and preliminary field test results.

Paper Details

Date Published: 1 March 1992
PDF: 5 pages
Proc. SPIE 1587, Chemical, Biochemical, and Environmental Fiber Sensors III, (1 March 1992); doi: 10.1117/12.56561
Show Author Affiliations
Paul F. Daley, Lawrence Livermore National Lab. (United States)
Bill W. Colston, Lawrence Livermore National Lab. (United States)
Steve B. Brown, Lawrence Livermore National Lab. (United States)
Kevin C. Langry, Lawrence Livermore National Lab. (United States)
Fred P. Milanovich, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 1587:
Chemical, Biochemical, and Environmental Fiber Sensors III

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