摘要
为实现光散射法对细颗粒物(PM_(2.5))质量浓度的准确测量,研究了单颗粒光散射法测量颗粒质量浓度的理论基础,并开展了单颗粒光散射法PM_(2.5)监测仪(single particles light scattering PM_(2.5)monitor,SPLSPM)的研制、校准和量值比对。通过校准装置研制,采用半计数法及比对法实现对仪器原始信号的校准。以体积表面积平均粒径和主导颗粒物密度作为关键参量建立了可靠的PN-PM质量浓度转化算法。通过与参比方法比对,结果满足HJ 653—2013中对细颗粒物自动监测仪的技术要求。
For the purpose of accurately measuring mass concentration of fine particle(PM_(2.5))by light scattering method,the theoretical basis of single-particle light scattering method was explored,and furthermore,a kind of single particles light scattering PM_(2.5)monitor(SPLSPM)was developed,calibrated,and compared with reference instruments.Through development of a calibration device,the original signal was calibrated by using half counting method and comparison method.By using the volume surface area average particle size and specific densities of dominant particle in specific particle size range as key parameters,a reliable PN-PM mass concentration conversion algorithm was established.Compared with the reference method,the results meet the technical requirements of fine particulate automatic monitor in HJ 653—2013.
作者
余来华
刘俊杰
韩晓霞
郭皓天
肖骥
黄志煌
YU Lai-hua;LIU Jun-jie;HAN Xiao-xia;GUO Hao-tian;XIAO Ji;HUANG Zhi-huang(College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Particle Measuring Chamber,National Institute of Metrology,Beijing 100029,China;Fujian Metrology Institute,Fuzhou 350003,China)
出处
《仪表技术与传感器》
CSCD
北大核心
2022年第5期42-50,共9页
Instrument Technique and Sensor
基金
国家重点研发计划资助(2017YFF0205303)。
关键词
细颗粒物
光散射
单颗粒
监测仪
校准
比对
fine particulate matter
light scattering
single particle
monitor
calibration
comparison
