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测量不确定度是用来表征测量过程中各项误差的综合作用所引起的测量结果对其真值可能偏离的一个区间。相应于具有给定置信概率区间的置信限即为测量不确定度的表征值。对测量不确定度的处理,按传统的分析方法有实验统计法和分析计算法。近年来为了方便一般工程的应用,国际计量局提出按其数值的评定方法估
Uncertainty of measurement is used to characterize the measurement of the error caused by the combined effect of the measurement results of its true value may deviate from a range. The confidence limit corresponding to the interval with a given confidence probability is the characterization of the measurement uncertainty. The treatment of measurement uncertainty, according to the traditional analytical methods are experimental statistics and analytical calculation method. In recent years, in order to facilitate the application of general engineering, the International Bureau of Metrology proposed by its numerical assessment method of assessment