基于文丘里双差压超声气体流量在线校准装置

doi:10.3969/j.issn.1000-1158.2018.z1.21

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Abstract An on-line calibration device for large flow aerosol sampler is introduced,Its working principle, measuring method, technical index and function are described.Principle of Venturi double differential pressure ultrasound gas flow measurement, it overcomes the problem of small flow range ratio of single type flowmeter,the range ratio can be extended to 1:40 or even higher,it has the characteristics of high accuracy, small pressure loss, small volume and easy to carry.

Key words： metrology aerosol sampler Venturi double differential pressure ultrasound gas flow;environmental monitoring

PACS:

TB937

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	Articles by authors
	WAN Li-fen
	SANG Xiao-ming
	GAO Zhen-hua
	YIN Yan-zhen
	HE Cheng

Cite this article:

WAN Li-fen,SANG Xiao-ming,GAO Zhen-hua, et al. Draft On-line Calibration Device of Ultrasound Gas FlowBased on Venturi Double Differential Pressure[J]. Acta Metrologica Sinica, 2018, 39(6A): 98-.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2018.z1.21 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2018/V39/I6A/98

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