频谱分析仪校准结果的测量不确定度评定  

Measurement Uncertainty Evaluation of Calibration Results of Spectrum Analyzer

作　　者：吴伟强 WU Weiqiang(Suzhou Guofang Metrology Group Co.,Ltd.,Kunshan,Jiangsu Province,215300 China)

机构地区：[1]苏州国方计量集团有限公司,江苏昆山215300

出　　处：《大众科学》2024年第16期114-116,共3页China Public Science

摘　　要：测量不确定度评定是确保测量结果准确性和可靠性的关键过程.围绕测量不确定度的概念、来源分析、评定方法以及表示与报告展开讨论.通过分类分析不确定度来源,介绍了随机、系统、环境和人为不确定度,并提出了综合评定方法,包括加法模型、最大值法和加权平均法.最后,说明了标准不确定度和扩展不确定度的表示与报告方式,以及不确定度传递的原理.Measurement uncertainty evaluation is a key process to ensure the accuracy and reliability of measurement results.This paper discusses the concept,source analysis,evaluation method,expression and report of measurement uncertainty.By classifying the sources of uncertainty,random,systematic,environmental and anthropogenic uncertainties are introduced,and a comprehensive evaluation method including addition model,maximum method and weighted average method is proposed.Finally,the expression and reporting methods of standard uncertainty and extended uncertainty,as well as the principle of uncertainty transmission are explained.

关 键 词：频谱分析仪 测量不确定度 随机误差 系统误差 

分 类 号：TM935[电气工程—电力电子与电力传动]