负压pVTt法气体流量标准装置检定流量计可行性的理论分析  

Theoretical analysis of the feasibility of gas flowmeter calibration with calibration facility to pVTt technique

作　　者：冯倩倩 刘智林 胡振远 宫家明 赵玉敏 FENG Qianqian;LIU Zhilin;HU Zhenyuan;GONG Jiaming;ZHAO Yumin(Shandong Institute of Metrology,Jinan 250014,China)

机构地区：[1]山东省计量科学研究院,山东济南250014

出　　处：《工业计量》2024年第2期57-61,共5页Industrial Metrology

摘　　要：文章提出采用负压pVTt法气体流量标准装置检定高精度气体流量计,并从理论层面分析了负压pVTt法气体流量标准装置检定气体流量计的可行性。主要包括检定装置的不确定度评定、工作原理、检定流量范围、检定时间和存在的难点等几个方面,重点为解决高精度流量计无法检定溯源的难题,为高精度流量计检定装置的建立奠定基础。This paper proposes to verify high-precision gas flowmeter with calibration facility to pVTt technique,and analyzes the feasibility of gas flowmeter calibration with calibration facility to pVTt Technique.It mainly includes uncertainty evaluation,working principle of the calibration facility,flow range which can be verified by the calibration facility,calibration time required to verify the flowmeter and existing difficulties and so on.It focuses on solving the problem that the high-precision flowmeter can't be verified,and lays the foundation for the establishment of the high-precision flowmeter calibration facility.

关 键 词：气体流量计 检定 pVTt法气体流量标准装置 可行性 

分 类 号：TH814[机械工程—仪器科学与技术]