摘要
针对传统动态光散射技术无法自动更改测量方案的问题,基于智能动态光散射技术,研制智能动态光散射纳米粒度分析仪,实现稳定、准确的测量。详细介绍智能动态光散射技术原理、光强自动调节系统、自适应光子相关器和自动温度控制系统等模块的设计思路和技术参数;并分别对200 nm,400 nm,621 nm的标准样品颗粒进行测量对比实验。实验结果表明:智能动态光散射技术与传统动态光散射技术获得的实验结果相对误差均满足ISO13321国际标准,但前者的结果更为准确、稳定。
Dynamic light scattering technology is the main method to measure the particle size of nanoparticles at present.In this paper,the intelligent dynamic light scattering technology is proposed for the disadvantage that traditional dynamic light scattering technology cannot automatically change the measurement scheme,and a prototype of intelligent dynamic light scattering nano-particle size analyzer is developed to realize accurate and stable intelligent measurement.The principle of intelligent dynamic light scattering technology,automatic light intensity regulation system,adaptive photon correlator and automatic temperature control system are introduced in detail.The results show that the relative errors of the experimental results obtained by the intelligent dynamic light scattering technology and the traditional dynamic light scattering technology both meet the ISO13321 international standard,but the former results are more accurate and stable.
作者
徐炳权
黄桂琼
韩鹏
邱健
彭力
骆开庆
刘冬梅
Xu Bingquan;Huang Guiqiong;Han Peng;Qiu Jian;Peng Li;Luo Kaiqing;Liu Dongmei(School of Physics&Telecommunication Engineering,South China Normal University,Guangzhou 510006,China;Guangdong Provincial Engineering Research Center for Optoelectronic Instrument,Guangzhou 510006,China)
出处
《自动化与信息工程》
2021年第1期1-6,11,共7页
Automation & Information Engineering
关键词
动态光散射
纳米颗粒
粒度分析仪
dynamic light scattering
nanoparticles
particle size analyzer
