外夹式超声流量计在线测量结果的不确定度评定
Uncertainty Evaluation of On-line Measurement Results of External Clamped Ultrasonic Flowmeter
张柯 1姬学智 2陈飞 1何力人2
作者信息
- 1. 河南省计量测试科学研究院,河南郑州 450008;国家水表质量检验检测中心,河南郑州 450008
- 2. 河南省计量测试科学研究院,河南郑州 450008
- 折叠
摘要
外夹式超声流量计是一种常见的流量测量设备,在流量计量中具有广泛的应用.然而,超声流量计测得值的准确性和可靠性往往受到多种因素的影响.为了保证超声流量计在线测量过程中受测量管道外径、测量管道壁厚和测量液体流速等参数的影响下测量结果准确且可靠,结合JJG 1030-2007《超声流量计》检定规程的要求,针对超声流量计的在线测量过程,将超声流量计测量结果的不确定度分为多个部分进行讨论,对超声流量计的测量结果进行不确定度分析与评定.并通过实验对该方法的有效性进行验证,结果表明,该方法能够有效地对超声流量计测量结果进行评定,具有一定的实用价值.
Abstract
The external clamped ultrasonic flowmeter is a common flow measurement equipment and is widely used in flow measurement.However,the accuracy and reliability of the measured values of the ultrasonic flowmeter are often affected by various factors.In order to ensure the accuracy and reliability of measurement results during the online measurement process of ultrasonic flowmeters under the influence of parameters such as measuring pipeline outer di-ameter,measuring pipeline wall thickness,and measuring liquid flow rate,in accordance with the requirements of the JJG 1030-2007"Verification regulation of ultrasonic flowmeters",for the online measurement process of ultrason-ic flowmeters,the uncertainty of the measurement results of ultrasonic flow meters is divided into multiple parts for dis-cussion,and the uncertainty analysis and evaluation of the measurement results of ultrasonic flowmeters are conduct-ed.And the effectiveness of the method is verified by experiments,and the results show that the test method can ef-fectively evaluate the measurement results of ultrasonic flowmeter and has certain practical value.
关键词
外夹式超声流量计/在线测量/测量不确定度/管道的外径/管道的壁厚/液体流速Key words
external clamped ultrasonic flowmeter/online measurement/measurement uncertainty/outer diameter of the pipeline/wall thickness of the pipeline/liquid flow rate引用本文复制引用
基金项目
河南省科技发展计划(2022)(222102410002)
出版年
2024
NETL
NSTL
维普
万方数据