AIR BUOYANCY CORRECTION FOR GAS MASS IN PRESSURE VESSELS

摘要：

　　When a liquid flow standard facility is used to calibrate flow mass of Coriolis mass meter,air buoyancy correction is made for mass indication of the weighing instrument.When flow is high-pressure gas,the weighing vessels are gas cylinders in the gas flow standard facility.The stresses and strains in the wall of cylinder due to the internal pressure from the compressed gas are determined,so the volumetric expansion of the cylinder can be obtained.According to the actual data,air buoyancy correction for gas mass can be disregarded.

关键词： Air buoyancy correction Coriolis mass flowmeter Gravimetric method Gas cylinder Plane stress

作者: W.Lu P.J.Zhao D.S.Liu

作者单位: National Institute of Measurement and Testing Technology,No.10,Yushuang Street,Chengdu,Sichuan,China

会议类型: 国际会议

会议名称: 国际测量技术联合会(IMEKO)2017年国际测量技术研讨会

会议地点: 杭州

会议语种:英文

页码: 23-25

在线出版日期: 2017-09-04（万方平台首次上网日期，不代表论文的发表时间）