示波器测量脉冲信号测量结果的不确定度分析与评定  

Analysis and evaluation of uncertainty of pulse signal measurement result by oscilloscope

作　　者：史永彬[1] 于蒙[1] 李迪[1] 

机构地区：[1]92493部队89分队,葫芦岛125000

出　　处：《国外电子测量技术》2016年第3期50-53,共4页Foreign Electronic Measurement Technology

摘　　要：数字示波器由于操作便捷、信号输出实时显示等优点在脉冲信号测量领域被广泛应用。以是德(原安捷伦)科技DSO6052A数字示波器为例,详细说明了其测量脉冲信号幅度、频率和脉宽所得结果的不确定度评定过程,并对测量结果不确定度来源进行了分析、计算,给出了评定结果的表达形式。在分析各参量不确定度对测量结果的影响程度基础上,推荐给出了提高测量精度的方法,并经实验证明了其准确可靠,能够为脉冲信号发生器检定装置建标材料撰写及脉冲信号测量结果不确定度评定提供参考借鉴。Digital oscilloscopes are wildly used in the pulse signal measurement field because of its measurement method easy and intuitive .By using Keysight （formerty Agilent＇s）Technologies DSO6052A digital oscilloscopes ,the paper intro‐duces the measurement result uncertainty evaluation process on pulse signal amplitude ,frequency and width in detail . The uncertainty sources of measurement result are analyzed .Then the measurement data are calculated and the expres‐sions are given .To the evaluation result ,each factor influencing uncertainty is analyzed .Finally the method to improve measurement accuracy is recommended in the paper .It is proved that the analysis and evaluation method is correct and effective in practice .T hus it can be taken as reference for composing pulse signal generator verification device standard report and uncertainty evaluation on pulse signal measurement result .

关 键 词：脉冲信号 数字示波器 不确定度评定 

分 类 号：TM935.4[电气工程—电力电子与电力传动] TN781[电子电信—电路与系统]