品牌与标准化Issue(2)：236-238,3.DOI:10.3969/j.issn.1674-4977.2024.02.071
差压式流量计流量测量不确定度评定
Evaluation of Measurement Uncertainty for the Outflow Coefficient of Differential Pressure FlowMeters
冯鑫 1周文辉 1陈青玉 1刘休休1
作者信息
- 1. 河南省计量测试科学研究院,河南 郑州 450008
- 折叠
摘要
Abstract
Differential pressure flowmeters have advantages such as high measuring accuracy and good reliability.They are widely used in fields such as petroleum,chemical industry,metallurgy,and heating.They play an important role in environmental protection,energy conservation,emission reduction,and flow trade settlement.This article takes a standard orifice plate with an accuracy level of 1.5 and a size of DN200 as an example,and establishes a mathematical model based on the national verification regulations JJG 640-2016 Differential Pressure Flowmeters.It analyzes various sources of uncertainty,calculates and evaluates the uncertainty of flow measurement for flow meters,aiming to provide reference for relevant metrology verification personnel.关键词
差压式流量计/流出系数/不确定度Key words
differential pressure flowmeter/discharge coefficient/uncertainty引用本文复制引用
冯鑫,周文辉,陈青玉,刘休休..差压式流量计流量测量不确定度评定[J].品牌与标准化,2024,(2):236-238,3.
