Open AccessFiber Optical Micro-detectors for Oxygen Sensing in Power Plants
Author(s) -
Gregory L. Baker,
Ruby N. Ghosh,
D. J. Osborn,
Po Zhang
Publication year - 2006
Language(s) - English
Resource type - Reports
DOI - 10.2172/899505
Subject(s) - molybdenum , optical fiber , fiber , materials science , fiber optic sensor , quenching (fluorescence) , chloride , cluster (spacecraft) , oxygen sensor , detector , oxygen , optoelectronics , analytical chemistry (journal) , chemistry , optics , metallurgy , composite material , computer science , physics , organic chemistry , chromatography , fluorescence , programming language
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. Our approach towards immobilizing the potassium salt of the molybdenum cluster, K{sub 2}Mo{sub 6}Cl{sub 14}, at the far end of an optical fiber is to embed the cluster in a thermally cured sol-gel matrix particle. Due to the improved mechanical properties of this approach high temperature sensor measurements were performed up to 100 C. These are promising results for a high temperature fiber optical oxygen sensor based on molybdenum chloride clusters