气体中微米级颗粒的数量浓度溯源技术研究

doi:10.3969/j.issn.1000-1158.2023.11.18

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Abstract To study the traceability technology of the number concentration of airborne particles in micrometer range, an inkjet aerosol generator (NIM-IJAG) is developed and its performance is verified. The particle size and number concentration of obtained solid particles by NIM-IJAG are closely related to the nozzle aperture, solute density, solution mass concentration, output parameters of electrical controller, clean air flow volume and other parameters. On the basis of accurately obtaining the droplet size, the effective control of the particle size of solid particles can be achieved by changing the solution concentration, the number concentration of solid particles could be effectively controlled by adjusting the voltage frequency applied on the nozzle. Through experimental verification, NIM-IJAG can produce 1~20μm monodisperse solid particle samples with number concentration in 0~30/cm³, which can trace to the national metrology standard.

Key words： metrology airborne particle number concentration of particles traceability technology ink-jet aerosol generator

Received: 06 March 2023 Published: 17 November 2023

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TH99

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	Articles by authors
	GUO Li-xu
	LIU Jun-jie
	LIU Yue
	YE Jing
	REN Jun

Cite this article:

GUO Li-xu,LIU Jun-jie,LIU Yue, et al. Traceability Research of Airborne Particle Number Concentration in Micrometer-scale[J]. Acta Metrologica Sinica, 2023, 44(11): 1755-1762.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.11.18 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I11/1755

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