超声流量计实时使用中检验系统的建立及验证

doi:10.3969/j.issn.1000-1158.2024.04.14

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Abstract To realize a real-time monitoring of ultrasonic flowmeter accuracy, a real-time in-use measurement system of ultrasonic flowmeter based on the high pressure closed loop facility was developed, which was combined with a prediction model of ultrasonic flowmeter with the relationship between signal parameters (including sound velocity deviation) and indicating value error based on random forest algorithm, and LabVIEW software platform. Within the measurement system, three characteristic signals of ultrasonic flowmeters, including signal quality, flow state index, sound speed index, can be real-time collected, and the simultaneous prediction of flowmeter indication error from the prediction model was obtained. The experimental tests were carried out in the range of 160~800m³/h, which showed that the deviation between the real error and the prediction error of the flowmeter was within the range of±0.42%.

Key words： ultrasonic flowmeter in-use measurement random forest algorithm machine learning LabVIEW

Received: 21 October 2022 Published: 03 April 2024

PACS:

TB937

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	Articles by authors
	LI Wenli
	LI Chunhui
	LI Mengna
	JIN Yuqiang
	XIE Dailiang

Cite this article:

LI Wenli,LI Chunhui,LI Mengna, et al. Establishment and Verification of Real-time In-use Measurement System for Ultrasonic Flowmeter[J]. Acta Metrologica Sinica, 2024, 45(4): 552-558.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.04.14 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I4/552

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