中国粉体技术2012，Vol.18Issue(4)：27-31,5.DOI:10.3969/j.issn.1008-5548.2012.04.007
大气颗粒物显微轮廓分形与源解析
Micro-outline Fractal and Origin Analysis of Atmospheric Particles
摘要
Abstract
To inspect the origin of atmospheric particles, the atmospheric particles were collected by the collecting device of atmospheric particles designed by electrostatic adsorption principle. By the optical micro-magnification technique and the image analysis method, the outline fractal dimension values of origin particles were obtained. Combined with the surrounding practical circumstances of sampling points, part origin of the atmospheric particles was gained by analyzing and comparing the fractal dimension values of each origin particle. The polarization property of each origin particle was investigated by polarization microscope, which could be coordinately used to distinguish the specific origin of the atmospheric particles. The results show that the atmospheric particles have fractal properties, many properties of the particles are corresponding to the fractal properties. It is feasible that the outline fractal dimension values of atmospheric particle are used as discrimination parameters of dust particles origin. The outline fractal dimension values can express the morphology of particles well. The fractal dimension value of specific origin particle has a certain scope. Combining the outline fractal dimension values with the polarization property of origin particles, the identification accuracy of the particles origin is more than 90%.关键词
大气颗粒/轮廓/分形维数/偏光特征Key words
atmospheric particles/ outline/ fractal dimension/ polarization property分类
资源环境引用本文复制引用
胡大为,王燕民,余爱枝..大气颗粒物显微轮廓分形与源解析[J].中国粉体技术,2012,18(4):27-31,5.基金项目
国家自然科学基金项目,编号:51075152 （）
中国博士后科学基金项目,编号:2011M501322 （）
广东省自然科学基金项目,编号:9151064101000017. （）
