| 摘要 |
PROBLEM TO BE SOLVED: To reduce the time for calculating a particle size distribution by reducing the time for calculating a coefficient matrix K. ! SOLUTION: A device for measuring a particle size distribution includes a calculation unit 3 that receives light intensity signals output from light detectors 24 to calculate a particle size distribution of particles on the basis that a vector s is expressed in a predetermined expression including a product of a vector q and a coefficient matrix K. The calculation unit 3 calculates values of a plurality of first parameters depending on particle sizes of the particles used for calculation of one element among elements of the coefficient matrix K and a plurality of second parameters depending on a spread angle of diffracted/scattered light, and stores at least one of the values to use for calculation of another element of the coefficient matrix K. ! COPYRIGHT: (C)2015,JPO&INPIT |
