气旋式生物气溶胶采样器采集物理效率评价方法研究

doi:10.3969/j.issn.1000-1158.2022.10.20

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Abstract In order to evaluate the collection efficiency of cyclonic microbiological sampler, a static chamber method evaluation device with uniform and stable particle concentration was built to measure the collection physical efficiency of two cyclonic microbiological samplers in China, and the collection efficiency curve was fitted. The measurement results showed that under the fixed sampling flow of Brand 1 sampler, Da50(the aerodynamic diameter when the collection efficiency was 50%) of the physical acquisition efficiency curve was 0.91μm. The Brand 2 sampler had 5 kinds of adjustable sampling flow rates, and Da50 were 1.60μm, 1.36μm, 1.19μm, 1.06μm and 1.05μm, respectively. The acquisition physical efficiency of Brand 2 sampler was compared with that of sample solution with initial capacity of 15mL and 7.5mL, respectively. It was found that the acquisition physical efficiency was lower when the initial capacity of sample solution was lower. The study provided a reference for the performance evaluation of cyclonic microbiological sampler.

Key words： metrology cyclonic bioaerosol sampler collection efficiency sampling flow static chamber method

Received: 23 June 2021 Published: 14 October 2022

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TB99

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	Articles by authors
	LIU Jia-qi
	ZHANG Guo-cheng
	WU Dan
	Tian Ying
	SHEN Shang-yi
	YANG Zhen-qi
	JING Wen-jie
	HUO Sheng-wei

Cite this article:

LIU Jia-qi,ZHANG Guo-cheng,WU Dan, et al. Study on Evaluation Method of Physical Efficiency of Cyclone Microbiological Sampler[J]. Acta Metrologica Sinica, 2022, 43(10): 1378-1381.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.10.20 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I10/1378

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