LabVIEW数据处理中3σ准则的应用  

Application of 3σ rule in LabVIEW data procession

作　　者：覃欣[1] 熊娟[2] 

机构地区：[1]中国测试技术研究院,四川成都610021 [2]四川电力职业技术学院,四川成都610071

出　　处：《中国测试》2009年第5期66-69,共4页China Measurement & Test

摘　　要：对多次重复测量得到的数据进行分析处理时,适当地应用3σ准则,可以有效地判别并剔除粗大误差。采用了常用的统计判别3σ准则,并以电子称量虚拟仪器系统为例,论述了在LabVIEW程序中如何使用3σ准则来进行粗大误差的判别和剔除。实际应用表明,系统运行稳定可靠,可使得最终得到的测量结果更真实、更准确,适合在易产生粗大误差的测试环境中采用。When analyzing repeatedly measured data, it can identify effectively and get away with gross errors if the 3σ rule were used properly. The normally used statistical discriminate, the 3σ rule has been introduced with the electronic weighing virtual instrument as example, and the authors has described how to use the 3σ rule in LabVIEW program to identify and get away with gross errors. Practical application shows that a stable and reliable running system can make the data more realistic and accurate, and more suitable for the test environment which is easier to produce gross errors.

关 键 词：3σ准则 LABVIEW 粗大误差 数据处理 

分 类 号：TP930.114[自动化与计算机技术] TP391.9