材料电磁参数测量误差传递流程图分析法  

A method for the uncertainty analysis of measurement of electromagnetic parameters by employing the flow chart of error transfer

作　　者：田步宁[1] 唐家明[1] 杨德顺[1] 刘其中[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071

出　　处：《西安电子科技大学学报》2001年第5期569-572,583,共5页Journal of Xidian University

基　　金：国家部委预研跨行业基金资助项目 ( 98J17 5 2 DZ0 133)

摘　　要：介绍了一种分析材料电磁参数测量不确定度的新方法———误差传递流程图分析法 .该方法根据所用测量技术的物理模型与数学模型 ,找出切合实际的误差传递关系 ,建立误差传递流程图 ,据此编程计算 ,求得各种误差因素引起的定量结果以及综合误差 .利用此方法分析了多端口材料电磁参数测试系统的测量不确定度 ,得到了一些重要结论 .结果表明 ,对于复杂测试系统 。A novel method for the uncertainty analysis of measurement of electromagnetic parameters by employing the flow chart of error transfer is presented. On the basis of physical and mathematical model of measurement techniques used, the practical relationship of error transfer is found and used to obtain the flow chart of error transfer, and hence estimates of uncertainty are attained using the program. The technique is illustrated with the uncertainty analysis of multi port setup for measuring electromagnetic parameters, and some important conclusions are given. The result shows that the technique is valid for the uncertainty analysis of a complicated test system.

关 键 词：电磁参数 误差分析 流程图 误差传递 

分 类 号：TM934[电气工程—电力电子与电力传动]