Open AccessFIBER OPTICAL MICRO-DETECTORS FOR OXYGEN SENSING IN POWER PLANTS
Author(s) -
Gregory L. Baker,
Ruby N. Ghosh,
III Osborn
Publication year - 2004
Language(s) - English
Resource type - Reports
DOI - 10.2172/829803
Subject(s) - detector , environmental science , oxygen , optical fiber , oxygen sensor , power (physics) , materials science , remote sensing , optoelectronics , optics , physics , geography , quantum mechanics
A reflection mode fiber optic oxygen sensor that can operate at high temperatures for power plant applications is being developed. The sensor is based on the {sup 3}O{sub 2} quenching of the red emission from hexanuclear molybdenum chloride clusters. Alkali salts of Mo{sub 6}Cl{sub 12} were synthesized and heated to 280 C for one hour in air. Optical measurements of the thermally treated material confirm the potential of the salts as lumophores in high temperature fiber optic sensors. In addition sol-gel films containing Mo{sub 6}Cl{sub 12} were dip coated on quartz substrates and heated at 200 C for one hour. Conditions were developed for successfully immobilizing monomeric complexes that are compatible with sol-gel processing