基于分维计算的颗粒粒度分析方法

Particle Sizing Algorithm on the Basis of Fractal Dimensions

提出了一种基于分形检测超细颗粒粒度的新方法及实现算法。超细颗粒在一定条件下产生布朗运动，通过光电系统记录的图象可看成是群体颗粒无规则漫游的结果，从而可用分数布朗运动模型去描述。对所获取的超细微粒布朗运动图象进行处理，然后按以上分形模型进行逐点的分维计算，再用统计的方法转换为粒度信息，从而实现粒度测量。文中给出了具体的算法及算例。

A new method for particles sizing on the basis of fractals detecting and its fulfiling algorithm are given.Brownian motion takes place in submicro particles under experimental conditions,which results in an image surface of fractal characteristic.So,such process can be modeled by fractal Brownian function.In the model,Hurst parameter H is connected to surface roughness and then related to particle size.Combining image processing technologies,we can obtain particless size the distribution.Some examples demonstrating this method and algorithm are also given in this paper.