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Proceedings Paper

Renewable-reagent fiber optic sensor for ocean pCO2
Author(s): Michael D. DeGrandpre
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Paper Abstract

A renewable-reagent fiber optic chemical sensor has been developed for measuring the partial pressure of carbon dioxide in ocean waters. A colorimetric pH indicator is delivered at a controlled flow rate through capillary tubing to the fiber tips. The fibers measure the color changes induced by CO2 diffusion across a gas-permeable silicone membrane. Multi- wavelength detection is used to correct for system drift. Factors affecting the sensitivity and stability of the response are discussed.

Paper Details

Date Published: 1 March 1992
PDF: 7 pages
Proc. SPIE 1587, Chemical, Biochemical, and Environmental Fiber Sensors III, (1 March 1992); doi: 10.1117/12.56533
Show Author Affiliations
Michael D. DeGrandpre, Woods Hole Oceanographic Institution (United States)

Published in SPIE Proceedings Vol. 1587:
Chemical, Biochemical, and Environmental Fiber Sensors III
Robert A. Lieberman, Editor(s)

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