一种用于动态光散射测量的虚拟数字相关仪

一种用于动态光散射测量的虚拟数字相关仪

孟庆南¹, 王晓春², 张洪武²

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:2006-12-14 修回日期:1900-01-01 出版日期:2007-07-26 发布日期:2007-07-26
通讯作者: 张洪武

A Virtual Digital Correlator for the Measurement of Dynamic Light Scattering

MENG Qing nan¹, WANG Xiao chun², ZHANG Hong wu²

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

Received:2006-12-14 Revised:1900-01-01 Online:2007-07-26 Published:2007-07-26
Contact: ZHANG Hong wu

摘要/Abstract

摘要： 根据数字相关的基本原理, 利用高速数据采集卡和实验室虚拟仪器工程平台LabVIEW, 设计开发用于动态光散射测量的数字相关仪. 利用该数字相关仪对动态光散射实测数据进行分析处理, 给出散射光强的时间自相关函数曲线, 反演计算了颗粒粒度, 并与已知粒度进行比较, 得到较好的测试结果. 

关键词: 动态光散射, 颗粒粒度测量, 虚拟仪器

Abstract: Based on the principle of digital correlation, a digital correlator used for the measurement of dynamic light scattering was developed via the high-speed data acquisition card and the Laboratory of Virtual Instrument Engineering Workbench (LabVIEW). The experimental data were processed with this digital correlator and the autocorrelation function curves of light intensity scattered were presented. A better test result is concluded by comparing the recovered particle size and the known size. 

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

中图分类号:

O433.1

孟庆南, 王晓春, 张洪武. 一种用于动态光散射测量的虚拟数字相关仪[J]. J4, 2007, 45(04): 638-641.

MENG Qing nan, WANG Xiao chun, ZHANG Hong wu. A Virtual Digital Correlator for the Measurement of Dynamic Light Scattering[J]. J4, 2007, 45(04): 638-641.