13 February 1990 A Fiber Optic Chemical Sensor For Carbon Dioxide Dissolved In Sea Water
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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.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kisholoy Goswami, Kisholoy Goswami, James A. Kennedy, James A. Kennedy, Dileep K. Dandge, Dileep K. Dandge, Stanley M. Klainer, Stanley M. Klainer, John M. Tokar, 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); doi: 10.1117/12.963192; https://doi.org/10.1117/12.963192


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