摘要
基于夫琅和费衍射理论,应用MATLAB软件进行模拟,对不同形体因子的标准椭球模型进行讨论,并与实验结果进行比较,证实了对于真实微粒测量模型,椭球模型比球模型更具优越性,能够更准确地获得非球形微粒的粒度分布。并从椭球模型的衍射图像反演得到微粒的形体因子。
According to the theory of Fraunhofer diffraction,the MATLAB software is applied to proceed the emulation and the standard ellipsoid model of the different body factors is dissussed. Calculation results are compared with the experiment results. So that the ellipsoid model is comfirmed superior to the ball model in the particle measure, the particle size distribution of nonspherieal particles can be obtained more accurately. Finally, the body factors of the particles are aehined from the inversion to the diffraction pattern of ellipsoid model.
出处
《激光技术》
CAS
CSCD
北大核心
2005年第5期481-483,共3页
Laser Technology
关键词
衍射与光学
形体因子
椭球
反演
diffraction and optics
body factor
ellipsoid
inversion
