Detecting substances in drinking water reservoirs
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United States of America Patent
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Oct 10, 2006
Issued Date -
N/A
app pub date -
May 21, 2004
filing date -
May 22, 2003
priority date (Note) -
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Abstract
The optical properties of water impounded in reservoirs such as large tanks with closed covers and in uncovered reservoirs are monitored to detect harmful substances. The system and method comprises illuminating the water with an artificial light source within the enclosure for monitoring of the reservoir. Radiance and irradiance fluxes are measured by one or more multiband radiometers. Changes in radiance and irradiance are used to calculate spectral attenuation coefficients of the water. Fluorescence spectra are measured. A computer look-up table of known absorption and emission spectra is compared to the spectral attenuation to determine if a substance has been detected.
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