Renewable-reagent fiber optic sensor for ocean pCO2

Michael D. DeGrandpre

doi:10.1117/12.56533

1 March 1992 Renewable-reagent fiber optic sensor for ocean pCO₂

Michael D. DeGrandpre

Proceedings Volume 1587, Chemical, Biochemical, and Environmental Fiber Sensors III; (1992) https://doi.org/10.1117/12.56533
Event: OE Fiber, 1991, Boston, MA, United States

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.

Citation Download Citation

Michael D. DeGrandpre "Renewable-reagent fiber optic sensor for ocean pCO₂", Proc. SPIE 1587, Chemical, Biochemical, and Environmental Fiber Sensors III, (1 March 1992); https://doi.org/10.1117/12.56533

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