光学技术, 2010, 36 (6): 0871, 网络出版: 2010-12-07  

单光束互相关法测量高浓度纳米颗粒粒径

Particle sizing in high concentration system with the one-beam cross-correlation
作者单位
上海理工大学 光电信息与计算机工程学院, 上海 200093
摘要
针对光子相关光谱法不能测量高浓度纳米颗粒粒径和双光束互相关测量法装置结构过于复杂等问题, 提出了一种基于范西特-泽尼克定理的单光束互相关法。首先分析了传统双光束互相关法存在的问题, 然后根据范西特-泽尼克定理建立了单光束互相关测量法的模型, 设计完成了单光束互相关颗粒粒度测量装置, 最后对各种浓度不同粒径的颗粒进行了测量。实验证明, 单光束互相关法能有效抑制多重散射的影响, 适用于测量高浓度纳米颗粒粒径。
Abstract
As photon correlation spectroscopy (PCS) cannot measure the high-concentration nanoparticle diameter, and cross-correlation dynamic light scattering (CCDLS)has too much complex experimental setup and other problems, a new method is proposed based on the Van Cittert-Zernike theorem, called one-beam cross-correlation (OBCC). First, the problems of traditional CCDLS are analyzed. Then, on the basis of the Van Cittert-Zernike theorem, a new experimental setup is designed. At last, the particle diameter with different concentration and different diameter is studied. The study result shows that the influence of multiple scattering can be effectively suppressed, and OBCC can be used to measure the high-concentration nanoparticle diameter.

蓝科, 杨晖, 郑刚, 杨依枫. 单光束互相关法测量高浓度纳米颗粒粒径[J]. 光学技术, 2010, 36(6): 0871. LAN Ke, YANG Hui, ZHENG Gang, YANG Yifeng. Particle sizing in high concentration system with the one-beam cross-correlation[J]. Optical Technique, 2010, 36(6): 0871.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!