空盒气压表示值误差的不确定度评定实例

Uncertainty evaluation on indication error of aneroid barometer

空盒气压表是测量大气压力的常规仪器,广泛地应用于气象、航空、企业和科研等领域。文章根据JJF1059.1-2012《测量不确定度评定与表示》及JJG272-2007《空盒气压表和空盒气压计》的要求,以DYM3型空盒气压表为研究对象,分析并列出了对测量结果有影响的不确定度来源,通过实验分析及验证得出其检定结果的扩展不确定度为0.8hPa,为省级空盒气压表的计量检定工作中使用不确定度评定方法提供参考。

Aneroid Barometer is a normal pressure instrument that is widely used in meteorology, aviation,research and other fields. According to the requirements of JJF1059.1-2012 Evaluation and Expression of Uncertainty in Measurement and JJG272-2007 Aneroid Barometer and Aneroid Barograph ,using DYM3 aneroid barometer as an study subject, this paper analyzes and lists the uncertainty sources that had significant effects on the measurement results. The uncertainty of its calibration results is achieved by experimental analysis and verification,which provides a reference for uncertainty evaluation on metrological verification of aneroid barometer in province.