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Correlation spectrometer

United States Patent

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7,697,134
April 13, 2010
View the Complete Patent at the US Patent & Trademark Office
Correlation Spectrometer
A correlation spectrometer can detect a large number of gaseous compounds, or chemical species, with a species-specific mask wheel. In this mode, the spectrometer is optimized for the direct measurement of individual target compounds. Additionally, the spectrometer can measure the transmission spectrum from a given sample of gas. In this mode, infrared light is passed through a gas sample and the infrared transmission signature of the gasses present is recorded and measured using Hadamard encoding techniques. The spectrometer can detect the transmission or emission spectra in any system where multiple species are present in a generally known volume.
Sinclair; Michael B. (Albuquerque, NM)Pfeifer; Kent B. (Los Lunas, NM)Flemming; Jeb H. (Albuquerque, NM)Jones; Gary D. (Tijeras, NM)Tigges; Chris P. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
11/ 593,386
November 6, 2006
356/310 356/319356/326
G01J 3/04 (20060101)
356/310,319,326-330
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DEAC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.