计量学报2024，Vol.45Issue(4)：552-558,7.DOI:10.3969/j.issn.1000-1158.2024.04.14
超声流量计实时使用中检验系统的建立及验证
Establishment and Verification of Real-time In-use Measurement System for Ultrasonic Flowmeter
摘要
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 160-800 m3/h,which showed that the deviation between the real error and the prediction error of the flowmeter was within the range of±0.42％.关键词
超声流量计/使用中检验/随机森林算法/机器学习/LabVIEWKey words
ultrasonic flowmeter/in-use measurement/random forest algorithm/machine learning/LabVIEW分类
通用工业技术引用本文复制引用
李文礼,李春辉,李梦娜,金宇强,谢代梁..超声流量计实时使用中检验系统的建立及验证[J].计量学报,2024,45(4):552-558,7.基金项目
中国计量科学研究院基本科研业务费项目(26-AKYZD2107-1) （26-AKYZD2107-1）
