一种高时间分辨率动态光散射的测量方法

一种高时间分辨率动态光散射的测量方法

李昂¹, 赵志胜², 张通¹, 郑伟涛¹

1. 吉林大学材料科学与工程学院, 长春 130012; 2. 吉林大学物理学院, 长春 130021

收稿日期:2006-02-05 修回日期:1900-01-01 出版日期:2006-09-26 发布日期:2006-09-26
通讯作者: 郑伟涛

A Measuring Method of Dynamic Light Scattering with a High Time Resolution Rate

LI Ang¹, ZHAO Zhi sheng², ZHANG Tong¹, ZHENG Wei tao¹

1. College of Materials Science and Engineering, Jilin University, Changchun 130012, China; 2. College of Physics, Jilin University, Changchun 130021, China

Received:2006-02-05 Revised:1900-01-01 Online:2006-09-26 Published:2006-09-26
Contact: ZHENG Wei tao

摘要/Abstract

摘要： 通过对光子相关光谱技术的分析, 提出一种高时间分辨率的动态光散射测量方法, 使用光电倍增管、虚拟示波器模块和计算机等构建了实验装置, 并用模拟探测方式对纳米颗粒系进行测量, 结果表明, 该实验装置具有12.5 ns的时间分辨率. 

关键词: 动态光散射, 颗粒测量, 虚拟仪器

Abstract: Based on the analysis about photon correlation spectroscopy, a high time resolution experimental method for the measurement of dynamic light scattering is proposed. The dynamic light scattering experimental system is composed of a photomultiplier tube, a virtual digital storeoscilloscope module and a personal computer. This experimental system is designed to work mainly on analog detection, in which the photomultiplier output is used directly as an analog signal. The test results of nanoparticles demonstrate that the time resolution of this experimental system is 12.5 ns.

Key words: dynamic light scattering, particle sizing, virtual instrument

中图分类号:

O433.1

李昂, 赵志胜, 张通, 郑伟涛. 一种高时间分辨率动态光散射的测量方法[J]. J4, 2006, 44(05): 787-789.

LI Ang, ZHAO Zhi sheng, ZHANG Tong, ZHENG Wei tao. A Measuring Method of Dynamic Light Scattering with a High Time Resolution Rate[J]. J4, 2006, 44(05): 787-789.

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