光散射法颗粒物监测仪粒径识别检测装置的搭建及方法研究

doi:10.3969/j.issn.1000-1158.2021.03.21

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Abstract A particle size identification device for light scattering particles monitor was designed and built. The particle size identification error of a PM2.5 sensor with particle size recognition function was tested by using SHIBATA LD-5 light scattering particles monitor as a reference (TSP) with different size particles (0.6, 2.0, 2.3, 2.5, 2.7, 3.0, 3.2, 3.4, 3.7μm). If the particle size identification function of the sensor is accurate, the concentration value TSP=PM10>PM2.5=0 when the particle size is larger than 2.5μm. However, the results show that PM2.5/PM10 decreases significantly until the particle size is larger than 3μm, where the particle size identification is realized. However, the value of PM2.5/PM10 risesafter 3.7μm.

Key words： metrology particle size identification light scattering PM2.5 particle monitor

Received: 07 May 2019 Published: 23 March 2021

PACS:

TB99

Fund:;Science and technology program of AQSIQ

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	Articles by authors
	WU Dan
	ZHANG Guo-cheng
	ZHAO Xiao-ning

Cite this article:

WU Dan,ZHANG Guo-cheng,ZHAO Xiao-ning. Research on Construction and Method of Particle Size Recognition and Detection Device for Light Scattering Particles Monitor[J]. Acta Metrologica Sinica, 2021, 42(3): 388-394.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2021.03.21 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2021/V42/I3/388

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