本文以钢管3PE防腐层剥离强度测量的不确定度分析为例,从测量仪器、测量环境、测量人员、测量方法等方面全面考虑,并对测量结果影响较大的不确定度进行充分的分析,介绍了防腐层剥离强度测定的不确定的计算方法。测量不确定度是指与测量结果相关联的一个参数,用以表征合理地赋予被测量之值的分散性。测量不确定度是由于随机效应和已识别的系统效应不完善的影响,而对被测 In this paper, taking the analysis of the uncertainty of peel strength measurement of 3PE coating as an example, the paper fully considers the measurement instruments, measurement environment, surveyors, measurement methods and other aspects, and fully analyzes the uncertainties that affect the measurement results greatly. The uncertain calculation method of peel strength of coating is introduced. Measurement uncertainty refers to a parameter associated with a measurement that characterizes the dispersion that is reasonably assigned to the measured value. Measurement uncertainty is due to random effects and imperfections in the identified system effects,