移动式天然气计量标准装置不确定度评定  

The Evaluation of Uncertainty of Mobile Calibration Facility for Natural Gas Meters

作　　者：闫文灿[1] 肖迪 徐明[1] 陆玉城[1] 

机构地区：[1]中国石油化工股份有限公司天然气分公司,湖北武汉430073 [2]国家石油天然气大流量计量站,黑龙江大庆163712

出　　处：《计量学报》2014年第1期54-60,共7页Acta Metrologica Sinica

摘　　要：根据《JJF1059测量不确定度评定与表示》的规定，结合移动式天然气计量标准装置，采用GUM对标准装置进行了不确定度分析评定。该标准装置的扩展不确定度为0．33％，按照量值溯源要求，可以对准确度等级不优于1．0级的流量计开展检定／校准工作。经与南京分站标准装置进行比较验证，评定结果得到验证。According to the 《JJF1059 Evaluation and Expression of Uncertainty in Measurement》, and combining with mobile standard facility of natural gas flow measurement, the uncertainty analysis of standard equipment was made with GUM. Accroding to the traceability requirements, the meters whose uncertainty is no better than 0.33% can be calibrated by GUM. In accordance with the traceability requirements, it can verificate/calibrate the meter which is no better than lecel 1.0. Finally, the evaluation results are verified by compared with Nanjing branch of national station of petroleum ＆ natural gas flow measurement.

关 键 词：计量学 移动式天然气计量标准装置 标准表法 不确定度评定 

分 类 号：TB937[一般工业技术—计量学]