分段自相关动态光散射法测量亚微米粒度  

Sub Micrometer Particle Sizing by Method of Segmental Autocorrelation Dynemic Light Scattering

作　　者：杨建文[1,2] 李峰[1,2] 田维坚[1,2] 陆祖康[1,2] 包正康[1,2] 

机构地区：[1]浙江大学现代光学仪器国家重点实验室 [2]浙江工业大学应用物理研究室

出　　处：《光学学报》1998年第5期602-606,共5页Acta Optica Sinica

基　　金：国家教委博士点基金

摘　　要：介绍了动态光散射法测量微粒尺度的原理。通过对相关函数相对误差的分析，提出了分段自相关的方法。该方法解决了高速、大数据量采集的困难，又不显著影响相关函数的精度。给出了实验装置及实验结果，测量结果与标准样品的标称值相符。The principle of particle sizing by method of dynamic light scattering is reviewed. By analyzing the relative error, the method of segmental auto correlation is presented. The problems of high speed and large amount data acquisition are solved by using the proposed method. The accuracy of correlation function is not affected seriously. The experimental set up and results are shown. The measured result is in agreement with the nominal values.

关 键 词：动态光散射 自相关 光散射 粒度测量 亚微米 

分 类 号：O436.2[机械工程—光学工程]