静水拖曳法电磁流速仪校准方法

doi:10.3969/j.issn.1000-1158.2021.12.08

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Abstract A high precision static water towing velocity standard device is used in measuring ability evaluation of current meter ACM3-RS made by JFE Advantech Co. The zero-offset characteristics is investigated, and the indication error of this current meter under standard towing velocity is tested. At last, the influence of immersion depth to measurement results is analyzed. The results shows that, the current meter express good linearity and repeatable under 1600mm/s, the indication error is lower than 2% or 5mm/s, it has to be recalibrated in higher speed range. The zero-offset drift can be obviously observed in measuring, which need to be correc-ted in practical application. The submergence depth of current meter can also influence on the measurement results, it is recommended to consider the actual submerged depth for calibration before application.

Key words： metrology electromagnetic velocity meter water velocity towing tank facility calibration

Received: 09 February 2020 Published: 06 December 2021

PACS:

TB937

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	Articles by authors
	GUO Ze-yu
	LIU Yuan
	HU He-ming
	XIE Dai-liang

Cite this article:

GUO Ze-yu,LIU Yuan,HU He-ming, et al. Research on Calibration of Electrostatic Velocity Meter by Hydrostatic Tow Method[J]. Acta Metrologica Sinica, 2021, 42(12): 1603-1609.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2021.12.08 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2021/V42/I12/1603

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