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Optical backscatter probe for sensing particulate in a combustion gas stream

United States Patent

May 28, 2013
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Optical Backscatter Probe for Sensing Particulate Matter
A system for sensing particulate in a combustion gas stream is disclosed. The system transmits light into a combustion gas stream, and thereafter detects a portion of the transmitted light as scattered light in an amount corresponding to the amount of particulates in the emissions. Purge gas may be supplied adjacent the light supply and the detector to reduce particles in the emissions from coating or otherwise compromising the transmission of light into the emissions and recovery of scattered light from the emissions.
Parks; James E. (Knoxville, TN), Partridge; William P. (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
12/ 491,781
June 25, 2009
GOVERNMENT RIGHTS This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.