METHOD FOR JUDGING PARTICLE AGGLOMERATION PATTERN

摘要

PURPOSE:To always accurately judge a particle agglomeration pattern, by judging the pattern formed to the bottom surface of a reaction vessel on the basis of a plurality of photoelectric outputs sampled by scanning the image on the bottom surface through at least two-stage judging processes. CONSTITUTION:The partial density of the image formed to the bottom surface 1b is measured at a spot by a light receiving element 6 and the spot is moved by the rotation of a feed screw 7 to measure the concn. distribution of the bottom surface image. The output of the light receiving element 6 is supplied to an operation apparatus 15 through an amplifier 13 and an A-D converter 14 to judge an agglomeration pattern and the result thereof is displayed by a display apparatus 16. In the next step. the pattern formed to the bottom surface 1b is judged through at least two-stage judging processes each judging whether the total particle amount forming the agglomeration pattern is present in a predetermined range or not on the basis of a plurality of photoelectric outputs.