非精确性中子测量数据的不确定度评定  

A method to evaluate measurement uncertainty of imprecise neutrons data

作　　者：肖明珠[1] 陈光 

机构地区：[1]电子科技大学自动化工程学院

出　　处：《强激光与粒子束》2005年第3期460-462,共3页High Power Laser and Particle Beams

基　　金：中国工程物理研究院基金资助课题

摘　　要：通常采用概率方法来评定不确定度,但该类方法不太适用于非精确性测量数据。集中讨论了利用证据理论对非精确性中子测量数据的不确定度进行了评估,提出一个公式并对来自不精确传感器和专家估计的一些非精确性中子测量数据的不确定度进行了测度和计算。该公式可同时适用于精确性和非精确性中子测量数据,两方面的例证佐证了其应用有效性。The measurement uncertainty is often evaluated by a probabilistic approach, but such evaluation is not always adapted to imprecise measurement data. This paper focuses on the use of the evidence theory to evaluate the measurement uncertainty of imprecise neutrons data. A formula is presented to measure and calculate the measurement uncertainty of imprecise neutrons data coming from imprecise physical sensors and approximate estimations provided by experts, the validity of the formula is demonstrated by two exanples. The formula can be applied to precise neutrons data too.

关 键 词：测量不确定度 不确定性 D-S理论 非精确性数据 中子 

分 类 号：TL501[核科学技术—核技术及应用]