PARTICLE SIZE ANALYSIS UTILIZING POLARIZATION INTENSITY DIFFERENTIAL SCATTERING

摘要

In a particle size measuring system, particles suspended in a sample cell (8') are illuminated by interrogating light beams (212) including a first interrogating component having a polarization parallel to a scattering plane, and a second interrogating component having a polarization perpendicular to the scattering plane. A photodetector (214) generates first and second intensity signals representative of the intensity, at various scattering angles, of scattered light corresponding to the first and second interrogating components. A processor (126) generates a difference signal representative of the difference between the first and second intensity signals, and calculates a resultant signal representative of particle size, based on a selected arithmetic transformation of the difference signal.