摘要
提出悬浮颗粒质量子集的概念,并将其推广为与计数测量信号幅度档对应的等效质量子集概念.根据统计学原理,进一步建立了悬浮颗粒质量子集颗粒平均体积的分形测度模型.基于悬浮颗粒群不同质量子集的几何形貌结构分布具有统计自相似性的特征,推导出计数法颗粒质量测量中与信号幅度档对应的颗粒等效质量计算公式,建立起计数法悬浮颗粒质量测量的基础理论模型.
The conception of mass subset is proposed for aerosol which also has been extended to the equivalent mass subset corresponding to counting signal channel. According to statistics, the fractal measurement model of aerosol＇s equivalent volume for counting signal is established. Due to the aerosols＇ shape distribution of different mass subsets showing the statistical selfsimilar character, the calculating formula is given for aerosol equivalent mass of signal channels in the process of aerosol mass measurement. Based on this, the theoretical basis is founded for aerosol mass measurement by using counting method.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第5期3008-3013,共6页
Acta Physica Sinica
关键词
分形测度
形貌参数
质量测量
质量子集
fractal measurement, shape parameter, mass measurement, mass subset
