1.6级压力表示值误差测量结果的不确定度评定

Evaluation of Uncertainty in Measurement Results of Pressure Indication Error of Grade 1.6

本文按照国家规范,详细展示了1.6级一般压力表的示值误差测得值的不确定度评定方法,分析了影响测量值的不确定度因素,主要包括:测量重复性、0.05级数字压力计的示值、液位差、被检表估读误差等,从而评定其测得结果的不确定度,对于其他级别的一般压力表示值误差测得值的不确定度评定具有指导意义。

According to the national standard,the paper presents the uncertainty evaluation method of the indication error of 1.6 grade general pressure gauge in detail,and analyzes the factors affecting the measurement uncertainty,including measurement repeatability,indication value of 0.05 level digital pressure gauge,liquid level difference,estimated reading error of the tested meter,so as to evaluate the uncertainty of the measured results.The uncertainty evaluation of the measured value of the general pressure indication error has guiding significance.