METHOD FOR COMPARING LIGHT INTENSITY DISTRIBUTION DATA OF DIFFRACTED/SCATTERED LIGHT AND PARTICLE SIZE DISTRIBUTION MEASURING INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To quantitatively compare the light intensity distribution data of diffracted and scattered light with each other. SOLUTION: Two light intensity distribution data are quantitatively compared with each other by treating both data as vectors and by using the crossing angle index (for example, cosθ) of the crossing angle of the vectors. In the process of particle size distribution measurement, the optimum arithmetic condition can be selected easily and accurately by using the above-mentioned technique in the comparing process (step S4 and S5) between actually measured light intensity distribution data and light intensity distribution data found by reverse conversion.