本文从光全散射法的基本原理出发,提出了测量微粒尺寸分布的独立道模式光全散射测量法和非独立模式光全散射测量法,解决了以往光全散射法只能测量微粒的平均直径,不能给出尺寸分布,并且测量范围小,测量结果有多值性的缺陷,独立模式光全散射测量法还能用于测量多峰分布微粒的尺寸分布,数值计算和实验研究表明用本文方法,测量结果准确,可靠。

Based on the principle of light extinction, two light extinction methods Independent model and dependent model method, for measuring the particle size distribution are persented in this paper. These methods have overcome the diffcu-ties of present light extinctions methods which can only measure mean diameter of particles and have limited measurable ranges and ambiguous measurement results, Moreover, the independent model light extinction method can measure the multi-peak polydispersion size distribution of particles. Numerical calculation and experimental research have shown the precision of the measurement results.