摘要
从理论和实验两方面出发,讨论了颗粒的折射率对光能分布及粒径分布反演结果的影响,同时给出了衍射理论的完整适用条件及基于衍射理论的粒度仪的最佳光靶尺寸。
The Fraunhofer diffraction theory(FDT) is widely applied in particle sizing.Through theoretical and experimental comparison,the effects of refractive index on energy distribution falled in photodetector are discussed.And combined with some conclusions drawn out by other researchers,the confining factors of FDT are presented.As a result,we draw out its whole application range for particle measuring and the best lightcollectionangle for particle sizer based on FDT.
出处
《中国粉体技术》
CAS
2003年第2期1-6,共6页
China Powder Science and Technology
基金
国家自然科学基金资助课题
编号:50176033。
关键词
颗粒测量
衍射理论
MIE理论
particle measurement
Fraunhofer diffraction theory
Mie′s theory
