A Fiber Optic Chemical Sensor For Carbon Dioxide Dissolved In Sea Water

Kisholoy Goswami; James A. Kennedy; Dileep K. Dandge; Stanley M. Klainer; John M. Tokar

doi:10.1117/12.963192

13 February 1990 A Fiber Optic Chemical Sensor For Carbon Dioxide Dissolved In Sea Water

Kisholoy Goswami, James A. Kennedy, Dileep K. Dandge, Stanley M. Klainer, John M. Tokar

Proceedings Volume 1172, Chemical, Biochemical, and Environmental Fiber Sensors; (1990) https://doi.org/10.1117/12.963192
Event: OE/FIBERS '89, 1989, Boston, United States

Abstract

A fluorescence based fiber optic chemical sensor has been developed to measure the concentration of dissolved carbon dioxide in sea water. The sensor configuration involves a single strand of step index multimode silica fiber, one end of which is terminated with a conical ferrule connector while the other end is incorporated with a special reservoir cell. This special cell contains a CO₂ permeable membrane at the tip. An aqueous solution of 8-hydroxy-1,3,6- pyrenetrisulfonic acid-trisodium salt has been employed as the sensing reagent. CO₂ dissolved in water permeates through the membrane into the sensing solution and alters its pH causing modulation in the emission intensity of the dye. Linear response is observed for this sensor over 0-600 ppm range. Measurements are done with a custom made filter fluorimeter.

Citation Download Citation

Kisholoy Goswami, James A. Kennedy, Dileep K. Dandge, Stanley M. Klainer, and John M. Tokar "A Fiber Optic Chemical Sensor For Carbon Dioxide Dissolved In Sea Water", Proc. SPIE 1172, Chemical, Biochemical, and Environmental Fiber Sensors, (13 February 1990); https://doi.org/10.1117/12.963192

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