基于雷达波的非侵入式排水管道流量测量

doi:10.3969/j.issn.1000-1158.2024.12.09

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Abstract Based on the principle of continuous wave (CW) radar displacement measurement and the characteristics of strong radar wave penetration, the relationship between liquid level and radar wave intermediate frequency (IF) signal is established on the basis of establishing a relationship model between the propagation path and the radar wave signal strength, and a non-intrusive method of liquid level measurement of water flow in pipelines is proposed. Then the flow rate of water flow in gravity flow drainage pipes is calculated according to Manning formula, and the non-invasive drainage pipe flow measurement based on radar waves is realized. By comparing with the measurement data of the reference electromagnetic flowmeter, the experimental results show that the average error of the proposed non-intrusive flow measurement method is within 3.6%, which can meet the accuracy requirements of the flow measurement of the majority of gravity flow.

Key words： flow measurement drainage pipe;non-intrusive radar wave gravity flow Manning formula

Received: 06 May 2023 Published: 18 December 2024

PACS:

TB937

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	Articles by authors
	WU Jing
	Lü Jing
	LI Xiaoling
	LU Ruili

Cite this article:

WU Jing,Lü Jing,LI Xiaoling, et al. Non-intrusive Drainage Pipe Flow Measurement Based on Radar Wave[J]. Acta Metrologica Sinica, 2024, 45(12): 1811-1817.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.12.09 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I12/1811

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