| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for measuring a particle size distribution, which reduce dependency of the particle size distribution on its concentration by setting a unique concentration correcting value on a specific object sample to be measured thereby carrying out the measurement more accurately, and provide a measuring program used in the apparatus for measuring the particle size distribution. SOLUTION: In the apparatus 1 for measuring the particle size distribution, which is provided with a plurality of detectors 5 detecting diffracted light and/or scattered light Ls, at every prescribed angle, being generated by projecting light L on to the object sample to be measured S and which obtains the particle size distribution of the object sample S based on detection values Dd detected by respective detectors 5, the detection values Dd of respective detectors are obtained in such a way that the concentration of the object sample S is varied, and concentration correcting values 16 for correcting the detection values of the detectors 5 in accordance with the sample concentration are obtained respectively based on the detection value Dd, and after correcting the detection values Dd of the respective detectors by using the obtained concentration correcting values 16, the particle size distribution is obtained by using the corrected detection values of the detectors. COPYRIGHT: (C)2004,JPO
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