长期以来,人们一直在对测量结果的可信度进行研究,以便比较、评价或再现测量结果。由于影响测量结果的因素很多,人们对诸多的影响因素缺乏完整的了解,而传统的误差理论,要涉及到“真值”这个理想化的概念,在实际工作中却往往难以操作,计量界在总结大量测量实践和误差理论的基础上,进行大量的研究,提出“测量不确定度”的概念[1-2],它被定义为“表征合理地赋予测量之值的分散性,与测量结果相关联的参 For a long time, people have been studying the credibility of measurement results in order to compare, evaluate or reproduce the measurement results. Due to many factors that affect the measurement results, people lack a complete understanding of many influencing factors. However, the traditional error theory involves the ideal concept of ”truth value“, which is often difficult to operate in actual work. On the basis of summarizing a large number of measurement practices and error theory, a large number of studies have been conducted to propose the concept of ”measurement uncertainty“ [1-2], which is defined as ”characterizing the decentralized Sex, the parameters associated with the measurement