摘要
采用传统的公式法和介质饱和法对颗粒物监测仪采样滤膜进行测试;并提出利用MATLAB编程的数字图像处理(DIP)方法。对采样滤膜的SEM显微图像进行图像二维孔隙率的计算;同时对孔径分布进行统计分析。实验和图像处理所得的孔径分布情况表现出客观一致性,结果表明 DIP 方法对滤膜的孔径分布分析有一定的可信度,可以作为一种对滤膜的制备工艺设计与产品性能检测的分析方法,并进行应用研究。另外,由于二维图像的限制,图像统计获取的孔隙率数值要小于计算法与实验数据,需要寻找转换二维孔隙率与三维真实孔隙率的有效方式。
The traditional formula method and medium saturation method to test the sampling filters of the particulate matter monitor were used,then an new algorithm based on MATLAB digital image processing( DIP) was put forward to calculate the two-dimensional porosity of the SEM microscopic image of the filters,and the pore size distribution was statistically analyzed. Pore size distribution results from testing method and the image processing show objective consistency,which indicates that the DIP method on analyzing the distribution of filter pore size has a certain degree of credibility,and is capable of being a method for preparation process design and product performance test of filter. In addition,due to the limitation of two-dimensional image,the porosity value obtained by image statistics is smaller than that from the calculation method and experimental data. Thus an effective way to transform two-dimensional porosity to three-dimensional real porosity is desired.
作者
刘金城
张德政
于丽萍
王德来
乔晓燕
LIU Jin-cheng;ZHANG De-zheng;YU Li-ping;WANG De-lai;QIAO Xiao-yan(School of Computer and Communication Engineering,University of Science and Technology Beijing,Beijing 100083,China;Beijing Municipal Meteorological Observation Center,Beijing 100089,China;Beijing Key Lab of Knowledge Engineering for Materials Science,University of Science and Technology,Beijing 100083,China)
出处
《科学技术与工程》
北大核心
2019年第6期17-22,共6页
Science Technology and Engineering
基金
中央级公益性科研院所基本科研业务费专项基金(IUMKY201736)资助
关键词
数字图像处理
孔隙率
孔径分析
digital image processing
porosity
pore size analysis