关于电阻表示值误差测量结果不确定度的评定  

Assessment of Error Measurement Uncertainty for Resistance Indicating Values

作　　者：贾子花 

机构地区：[1]天津市质量技术监督宝坻检测中心,天津301800

出　　处：《天津科技》2014年第11期22-24,共3页Tianjin Science & Technology

摘　　要：参照国家电流表、电压表、功率表及电阻表检定规程,通过使用多功能校准仪对电阻表进行校准,并对其误差来源进行分析,应用A类不确定度和B类不确定度评定方法对误差来源进行分类确定,应用正态分布和均匀分布等计算方法对其不确定度进行合成计算,最后评估出最优测量结果的不确定度。Referring to the national verification regulation of amperemeters , voltmeters , wattmeters and ohmmeters,a multi-functional calibrator was used for the calibration of resistance meters to carry out an analysis for error measurement results. With the application of class A and class B uncertainties in measurement,error sources were classified;with the adoption of normal distribution and uniform distribution methods,a combined standard uncertainty was worked out;and finally,the uncertainty of the optimum measuring results were presented.

关 键 词：误差来源 A类不确定度 B类不确定度 均匀分布 

分 类 号：TH89[机械工程—仪器科学与技术]