Patent ID: 6246474
Filing Date: 2001-06-12
Classification: A61B,G01N

Abstract:
A particle size distribution probe for measuring the particle size distribution of optically dense slurries, said probe comprising:at least one light source capable of emitting a plurality of wavelengths;at least one detector element sensitive to wavelengths emitted by said light source;at least one sample cell having optical qualities permitting particle size measurements to be performed at wavelengths corresponding to sensitivity of said detector element;means for transmitting light from said light source through said sample cell and then to said detector to obtain detector signals for a particle size distribution measurement; andmeans for processing detector signals from said detector to obtain a particle size distribution measurement,wherein said sample cell includes means for reducing an optical depth in a flowing optically dense slurry to permit particle size distribution measurements without substantial dilution or agglomeration of said slurry.