| 摘要 |
PROBLEM TO BE SOLVED: To provide a particle size measuring device, a particle size measuring method, and a particle size measuring program which are capable of accurately measuring particle sizes in a wider range.SOLUTION: A particle concentration measuring part 3 measures particle concentration, and a scattered light intensity measuring part 4 measures scattered light intensity for each particle group separated by a particle separation part. Relationship between scattered light intensity and particle size per unit concentration is stored in a measurement reference information storage part 521 as measurement reference information. A particle size calculation part 511 calculates a particle size of the particle group separated by the particle separation part based on the particle concentration measured by the particle concentration measuring part 3, the scattered light intensity measured by the scattered light intensity measuring part 4, and the measurement reference information. |
