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System and method for optical monitoring of a combustion flame

United States Patent

September 26, 2006
View the Complete Patent at the US Patent & Trademark Office
An optical spectrometer for combustion flame temperature determination includes at least two photodetectors positioned for receiving light from a combustion flame, each of the at least two photodetectors having a different, overlapping bandwidth for detecting a respective output signal in an ultraviolet emission band; and a computer for subtracting a respective output signal of a first one of the at least two photodetectors from a respective output signal of a second one of the at least two photodetectors to obtain a segment signal, and using the segment signal to determine the combustion flame temperature.
Brown; Dale M (Schenectady, NY), Sandvik; Peter M (Guilderland, NY), Fedison; Jeffrey B (Niskayuna, NY), Matocha; Kevin S (Rexford, NY), Johnson; Thomas E (Greer, SC)
General Electric Company (Niskayuna, NY)
10/ 701,472
November 6, 2003
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT This invention was made with Government support under U.S. Department of Energy contract number DEFC2601NT41021. The Government has certain rights in the invention.