| 摘要 |
PROBLEM TO BE SOLVED: To accurately measure the grain size distribution in a state of canceling the noise superposed to the scattered light information obtained from a measuring sample including measuring object grain, in a grain size distribution measuring device. SOLUTION: This grain size distribution measuring device comprises a basic light guide mechanism 5 for dividing the basic light L emitted from a single light source and guiding the same respectively a reference sample Rs as a reference and a measured sample OS, a scattered light guide mechanism 7 for guiding the scattered light LNa, LNb generated by applying each of the basic lights La, Lb to the samples Os, Rs, to a light intensity detecting part 6 detecting the intensity of light, and an information processing part 8 for calculating the grain size distribution of a group of measured grains included in the measured sample OS, on the basis of the difference in fluctuation of the intensity of the scattered lights LNa, LNb detected by the light intensity detecting part 6 or the difference in information operated on the basis of each fluctuation. COPYRIGHT: (C)2004,JPO&NCIPI
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