光子相关光谱的自寻优累积反演算法实现

计算物理 ›› 2011, Vol. 28 ›› Issue (2): 268-274.

光子相关光谱的自寻优累积反演算法实现

邱健, 杨冠玲, 韩鹏, 陈超雄

华南师范大学物理与电信工程学院, 广东广州 510006

收稿日期:2010-01-13 修回日期:2010-04-02 出版日期:2011-03-25 发布日期:2011-03-25
作者简介:邱健(1975-)男,讲师,博士,江西兴国,从事光电技术及系统和颗粒检测等研究.
基金资助:
广东省科技厅(2003C103019)资助项目

Self-optimizing Cumulative Inversion of Particle Size Distribution with Photon Correlation Spectroscopy

QIU Jian, YANG Guanling, HAN Peng, CHEN Chaoxiong

South China Normal University, School of Physics and Telecommunication Engineering, Guangzhou 510006, China

Received:2010-01-13 Revised:2010-04-02 Online:2011-03-25 Published:2011-03-25

摘要/Abstract

摘要： 提出自寻优方案改进,用于光子相关光谱技术测量纳米颗粒粒径及分布的累积反演算法.阐述光子相关光谱技术测量纳米颗粒的基本原理.详细分析光子相关光谱技术中传统累积反演算法的原理,分析传统方法中造成反演结果不稳定的主要原因.提出以标准差为判定依据的自寻优累积反演算法,改善累积反演算法的测量精度和稳定性.实验结果证明方法可行可靠.

关键词: 光子相关光谱, 自寻优, 累积反演法, 自相关

Abstract: A self-optimizing cumulative inversion for particle size distribution with photon correlation spectroscopy is proposed.It improves precision and stability of measurement.From a detailed fundamental of photon correlation spectroscopy and conventional cumulative inversion,we analyze instability of cumulative inversion.A self-optimizing method is presented by using the minimum mean-square error.It inverts particle size distribution stably with scattered autocorrelation curve with random noise.Experimental results illustrate validity and feasibility of the approach.

Key words: photon correlation spectroscopy, self-optimizing, cumulative inversion, autocorrelation

中图分类号:

O439

邱健, 杨冠玲, 韩鹏, 陈超雄. 光子相关光谱的自寻优累积反演算法实现[J]. 计算物理, 2011, 28(2): 268-274.

QIU Jian, YANG Guanling, HAN Peng, CHEN Chaoxiong. Self-optimizing Cumulative Inversion of Particle Size Distribution with Photon Correlation Spectroscopy[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2011, 28(2): 268-274.