| 用全固态激光器和一维CCD测定微粒粒径 |
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| 引用本文： | 贾光明,张贵忠,向望华.用全固态激光器和一维CCD测定微粒粒径[J].光子学报,2006,35(9):1293-1295. |
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| 作者姓名： | 贾光明 张贵忠 向望华 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津,300072;天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津,300072;天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津,300072 |
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| 基金项目： | 天津市科委基金资助(批准号:043601011) |
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| 摘 要： | 建立了一套利用线阵CCD探测散射光强从而测定粒径的实验装置.该装置采用线阵CCD取代传统的同心环探测器，并采用一台小尺寸全固态绿光激光器取代传统的He-Ne激光器.理论上采用全Mie氏散射理论，自行编写了实验数据的计算机拟合程序，可以由实验测得的散射光强角分布反演求出粒径分布信息.对粒径分别为4.91 μm和9.88 μm的聚苯乙烯小球均取得了良好的粒径测量结果.该装置被证实可用于测定的粒径范围为0.7 μm～44.0 μm.
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| 关 键 词： | Mie氏散射 粒度仪 1D-CCD 固态激光器 |
| 收稿时间： | 2005-04-25 |
| 修稿时间： | 2005年4月25日 |
Using Portable Laser and CCD to do Small Particle Sizing |
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| Jia Guangming,Zhang Guizhong,Xiang Wanghua.Using Portable Laser and CCD to do Small Particle Sizing[J].Acta Photonica Sinica,2006,35(9):1293-1295. |
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| Authors: | Jia Guangming Zhang Guizhong Xiang Wanghua |
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| Institution: | Key Laboratory of Optoelectronics Information Technical Science, Ministry of Education, College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300022 |
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| Abstract: | The experimental scheme for particle sizing by detecting the intensity of scattered light with a linear CCD instead of a concentric ring detector was build. The excitation was a compact all-solid-state green laser instead of the conventional He-Ne laser. A full Mie scattering theory was employed to describe the scattering process,through computer fitting of the measured data of scattered intensity vs scattering angle,diameters of the standard polystyrene spheres of 4.91 μm and 9.88 μm dimensions were successfully retrieved. The present apparatus is proven to be simple and effective for sizing particles of 0.7～44.0 μm in diameter. |
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| Keywords: | Mie theory Particle sizing 1D-CCD Solid-state laser |
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