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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摘要利用搭建的高精度静水拖曳法流速标准装置,对JFE公司ACM3-RS电磁流速仪的流速测量能力进行了实验研究。考察了该流速仪的零点特性,以拖车车速为标准测试了不同速度下流速仪的示值误差,并分析了不同入水深度对测量结果的影响。实验结果表明,流速低于1600mm/s时该流速仪具有良好的线性和重复性,示值误差能够优于2%或5m/s,在流速更高时需重新标定;该流速仪存在明显的零点漂移现象,实际应用中需及时修正;淹没深度对流速仪测量结果有明显影响,建议应用前考虑实际淹没深度进行校准。

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	郭泽宇
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关键词 ：计量学;电磁流速仪;水流速;拖曳水槽, 校准

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

收稿日期: 2020-02-09 发布日期: 2021-12-06

PACS:

TB937

基金资助:国家重点研发计划(2017YFC0405705)

通讯作者: 胡鹤鸣(1980-), 男, 河北衡水人, 中国计量科学研究院副研究员, 主要从事流量计量方面的研究。Email:huhm@nim.ac.cn E-mail: huhm@nim.ac.cn

作者简介: 郭泽宇(1994-),浙江东阳人,中国计量大学在读硕士研究生,研究方向为水流速流量计量。Email:542411559@qq.com

引用本文:

郭泽宇,刘源,胡鹤鸣,谢代梁. 静水拖曳法电磁流速仪校准方法[J]. 计量学报, 2021, 42(12): 1603-1609.
GUO Ze-yu,LIU Yuan,HU He-ming,XIE Dai-liang. Research on Calibration of Electrostatic Velocity Meter by Hydrostatic Tow Method. Acta Metrologica Sinica, 2021, 42(12): 1603-1609.

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