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EXTENDING THE RANGE OF TURBIDITY MEASUREMENT USING POLARIMETRY

United States Patent Application

20170074780
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Turbidity measurements are obtained by directing a polarized optical beam to a scattering sample. Scattered portions of the beam are measured in orthogonal polarization states to determine a scattering minimum and a scattering maximum. These values are used to determine a degree of polarization of the scattered portions of the beam, and concentrations of scattering materials or turbidity can be estimated using the degree of polarization. Typically, linear polarizations are used, and scattering is measured along an axis that orthogonal to the direction of propagation of the polarized optical beam.
Baba, Justin S. (Knoxville, TN)
UT-BATTELLE, LLC
14/ 855,307
September 15, 2015
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT [0001] This invention was made with government support under Contract No. DE-AC05-000R22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.