Patent ID: 6115644
Filing Date: 2000-09-05
Classification: G01N

Abstract:
An industrial process system adapted for controlling the flow of a plurality of different materials on respective conveyors wherein the materials are transported to a region to form a composition of predetermined proportions of said materials by weight without moisture, said system comprising:a plurality of sensor stations each disposed above a respective one of said conveyors, each of said sensor stations comprising means for producing an electrical signal representing the real time moisture content of the respective one of materials in response to measurement of light at two different wavelengths from said respective one of materials;means responsive to said electrical signals for generating a like plurality of flow signals each corresponding to the flow rate of a respective one of said materials that compensates for moisture in said respective material to produce said predetermined proportion of materials by weight without moisture; andmeans responsive to said flow rate signals for controlling said conveyors.