| 一种冲击分离式颗粒浓度测量装置的设计 |
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| 引用本文： | 郑灶松,朱永鹏,彭力,肖亮松.一种冲击分离式颗粒浓度测量装置的设计[J].大学物理,2012,31(9):53-56. |
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| 作者姓名： | 郑灶松 朱永鹏 彭力 肖亮松 |
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| 作者单位： | 华南师范大学物理与电信工程学院,广东广州,510006 |
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| 摘 要： | 为测量大气中颗粒物的粒度浓度,本文在传统的冲击采样原理的基础上设计出冲击式分级装置,并对其进行严格定标;运用消光法原理对分级后的样品进行测量,利用反射镜增大光程提高装置测量灵敏度,实现了对大气中0～5μm、5～20μm、15～40μm三个粒径区间的数量密度和质量浓度的准确测量.
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| 关 键 词： | 粒度浓度 冲击式分级 定标 消光法 |
A design of impact-separated device used to measure the particle concentration |
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| ZHENG Zao-song
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ZHU Yong-peng
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PENG Li
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XIAO Liang-song.A design of impact-separated device used to measure the particle concentration[J].College Physics,2012,31(9):53-56. |
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| Authors: | ZHENG Zao-song ZHU Yong-peng PENG Li XIAO Liang-song |
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| Institution: | (Department of Physics,South China Normal University,Guangzhou,Guangdong 510006,China) |
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| Abstract: | To achieve measurements of the atmospheric particle concentration,we design an impact-type classified device based on the traditional impact of sampling theory and calibrated exactly.The extinct principle is used to particle samples which had been classified,and enhances the sensitivity of the measurement device by using reflectors to increase the optical path.Finally,we realize the exact measurement of the grain concentrations of three particle ranges: 0~5 μm,5~20 μm and 15~40 μm in the atmosphere. |
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| Keywords: | grain concentrations impact-type classify calibrate extinct principle |
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