LASER DIFFRACTION-SCATTERING TYPE PARTICLE SIZE DISTRIBUTION MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide laser diffraction-scattering type particle size distribution measuring device which has neither under-ghosts nor upper-ghosts occurring in the measured result of a measuring particle group with the precipitous distribution of monodispersity, while being able to clearly evaluate the existence of flocculates.;SOLUTION: When first bottom B1 exists in the spatial intensity distribution of diffraction-scattered light from the measuring particle group measured by measuring optical systems (3, 4, 5, 6), the spatial intensity distribution data of the diffraction-scattered light from small angle side to that first bottom B1 is used to compute the particle size distribution.;COPYRIGHT: (C)2009,JPO&INPIT