不确定度理论在虚拟仪器测量系统中的应用  

Uncertainties theory in virtual instrument system

作　　者：孙秀桂[1] 张洪斌 幺明[1] 

机构地区：[1]大理学院,云南大理671003 [2]大理供电局,云南大理671001

出　　处：《电子测试》2009年第12期31-34,56,共5页Electronic Test

摘　　要：阐述了虚拟仪器系统不确定度评定的方法,以基于虚拟仪器的光辐射测试系统为例,分析了该系统的不确定度来源,应用GUM的不确定度传播规则及不确定度A类、B类评定的方法实现了对光辐射测试系统的不确定度的评定,最后给出了系统的测量结果、误差及不确定度。经评定系统精度高,误差小,该系统不仅可作为检测器,也可作为标准器进行量值传递。此测量不确定度评定方法可解决评估虚拟仪器的测量不确定度的问题。The paper described the method of uncertainty evaluation on virtual instrument. It analyzed of the source of uncertainty of the radiation test system based on virtual instrument, applied the rules of GUM uncertainty spread and the type A, B assessment methods to achieve a systematic assessment of uncertainty, and finally gave the system the overall uncertainty and erroro By assessed, the system has high precision and small error. The system not only can be used as detector can also be used as a standard device to transfer value. The measurement uncertainty evaluation can solve the question of uncertainty assessment of measurement based-on virtual instrument.

关 键 词：测量不确定度 GUM 光辐射测试 B类评定 

分 类 号：TH701[机械工程—仪器科学与技术]