一般压力表示值误差测量结果的不确定度分析与评定

Analysis and Evaluation of Uncertainty in Measurement Results of General Pressure Indication Errors

本文按照国家规定详细阐述了一般压力表示值误差的测量,并通过对测量不确定度来源的分析建立相应的测量模型,评定各输入量引入的标准不确定度,乘以灵敏系数,计算相应输出量的标准不确定度,根据各输入量之间的相关性计算合成标准不确定度,由合成标准不确定度和包含因子的乘积得到扩展不确定度。

The paper elaborates the measurement of general pressure indication error in accordance with national regulations,and establishes corresponding measurement models by analyzing the sources of measurement uncertainty.The standard uncertainty introduced by each input quantity is evaluated,multiplied by the sensitivity coefficient,and the standard uncertainty of the corresponding output quantity is calculated.The combined standard uncertainty is calculated based on the correlation between each input quantity,the extended uncertainty is obtained by multiplying the composite standard uncertainty and the inclusion factor.