标题：The measurement system of nanoparticle size distribution from dynamic light scattering data
作者：Li, Zhenmei; Wang, Yajing; Shen, Jin; Liu, Wei; Sun, Xianming
作者机构：[Li, Zhenmei; Wang, Yajing; Shen, Jin; Liu, Wei; Sun, Xianming] Shandong Univ Technol, Sch Elect & Elect Engn, Zibo 255049, Peoples R China.
通讯作者地址：[Li, ZM]Shandong Univ Technol, Sch Elect & Elect Engn, Zibo 255049, Peoples R China.
来源：OPTICS AND LASERS IN ENGINEERING
关键词：Dynamic light scattering; Truncated singular value decomposition;; LabVIEW; Photon counting
摘要：The measurement and analysis system of nanoparticle size distribution was developed by using virtual instrument technology, where the photon counting technology was applied in the system to replace the correlator; a high speed photon counter was designed with seamlessly counting technology to reduce the system cost and increase the accuracy. The data of nanoparticle dynamic light scattering (DLS) were analyzed in the mixed program of MATLAB and LabVIEW, where the autocorrelation functions of light scattering signals of 100 nm unimodal as well as 90 nm and 300 nm bimodal particles were inversed by truncated singular value decomposition arithmetic. Experiment results show that the peak position, peak width and symmetry of particle size distributions (PSDs) are very close to the real particles. (C) 2013 Elsevier Ltd. All rights reserved.