玻璃浮计型密度标准装置的不确定度评定  

Evaluation on the Uncertainty for Density Standard Device of Glass Hydrometer Method

作　　者：韩春红[1] 

机构地区：[1]大庆油田工程有限公司

出　　处：《油气田地面工程》2016年第1期70-71,共2页Oil-Gas Field Surface Engineering

摘　　要：为满足在线振动管液体密度计的强制检定要求,需建立在线振动管密度标准装置。通过对密度标准装置的测量不确定度来源分析,分别对重复性、一等标准密度计、频率计分辨率、温度测量等各输入分量进行测量不确定度的评定。评定密度标准装置的扩展不确定度为0.32 kg/m^3,符合国家计量检定系统表的要求,可以开展准确度等级为0.5级的液体密度计的检定/校准工作。To satisfy the requirement of the online vibrating liquid density meter compulsory verification, an online vibrating density standard device should be established. Through analysing the sources of measurement uncertainty for the density standard device, the evaluation of the measurement uncertainty is carried out for each input component, such as repeatability, a first-class standard density meter, frequency meter resolution and the temperature measurement. The expanded uncertainty of density standard device is 0.32 kg/m^3, and the verification/calibration work for the liquid density meter with the accuracy of 0.5 degree could be carried out.

关 键 词：在线振动管密度标准装置 测量不确定度 检定/校准 

分 类 号：TE832.2[石油与天然气工程—油气储运工程]