传感器测量不确定度评估方法的分析  

Evaluation of Measurement Uncertainties of Transducer

作　　者：赵化甜 荆学东[1] 姜健[1] 

机构地区：[1]上海应用技术学院,上海201418

出　　处：《煤炭技术》2015年第6期219-221,共3页Coal Technology

基　　金：国家自然基金项目(51275310);上海市教育委员会科技创新项目(13YZ121)

摘　　要：传感器测量不确定度评估目前存在的方法有GUM方法,利用Gram-Charlier级数求相互独立随机变量的合成不确定度,以及基于贝叶斯理论的测量的不确定度A类评定。详细介绍以上方法各自的适用条件以及优缺点,并与GUM方法作了实例对比。Three approaches to evaluate uncertainties of measurements are presented. Measurement uncertainties is estimated according to evaluation of 'guide to the expression of uncertainty in measurement(GUM)'; Secondly, measurement uncertainty is evaluated based on Gram-Charlier series; Thirdly,measurement uncertainty is estimated according to type a evaluation based on Bayesian theory. It is concluded that different advantages and disadvantages exist due to different approaches above. Finally,the approaches to evaluate uncertainties of measurements was compared to GUM by cases.

关 键 词：传感器测量 不确定度评估 GUM Gram-Charlier级数 贝叶斯理论 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]