| 衍射散射式颗粒粒度测量法的研究新进展 |
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| 引用本文： | 杨依枫,杨晖,郑刚,蓝科.衍射散射式颗粒粒度测量法的研究新进展[J].光学技术,2011,37(1):19-24. |
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| 作者姓名： | 杨依枫 杨晖 郑刚 蓝科 |
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| 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 |
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| 基金项目： | 国家自然科学基金，上海市研究生创新基金项目，上海市科委纳米专项基金，上海市晨光计划，上海市优秀青年教师基金，光电学院教师创新能力建设项目，上海市重点学科项目资助 |
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| 摘 要： | 介绍了衍射散射式颗粒粒度测量法的基本光路结构和理论模型,讨论了决定其性能优劣的重要指标--测量下限,对影响测量下限向小粒径范围延伸的参数进行了分析.继而介绍了近年来国内外主要粒度仪品牌在光学结构和散射理论模型方面所做的改进,阐述了它们的工作原理和性能特点.最后对衍射散射式颗粒粒度测量法的发展前景做出了展望,从修正理论模...
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| 关 键 词： | 颗粒测量 激光衍射 Mie散射 |
Progress of particle size measurement by laser diffraction and scattering |
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| YANG Yifeng,YANG Hui,ZHENG Gang,LAN Ke.Progress of particle size measurement by laser diffraction and scattering[J].Optical Technique,2011,37(1):19-24. |
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| Authors: | YANG Yifeng YANG Hui ZHENG Gang LAN Ke |
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| Institution: | (School of Optical Electronical and Computer Engineering, University of Shanghai for Science and Technology,Shanghai 200093,China) |
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| Abstract: | The theoretical model and the basic optical structure of the particle size measurement by laser diffraction and scattering are introduced.The lower limit of measurement——an important indicator of the performance of this method is discussed.Parameters which prevent the lower limit from extending to the small size are analyzed.The improvements on optical structures and theoretical model of several major commercial particle size analyzers in recent years are described then.Future prospects of this measurement are presented in the field of theoretical model correction,inversion algorithm modification,detector improvement and volume compaction.In addition,a new method named particle size measurement by backscattering spectroscopy and Fourier analysis is introduced,which is expected to extend the lower limit significantly. |
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| Keywords: | measurement of particles laser diffraction Mie scattering |
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