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最小二乘独立线性度的测量不确定度
引用本文:梁志国,孙璟宇,李滨.最小二乘独立线性度的测量不确定度[J].航空计测技术,2002,22(4):28-33,46.
作者姓名:梁志国  孙璟宇  李滨
作者单位:中国航空长城计量测试技术研究所 北京100095 (梁志国,孙璟宇),中国航空长城计量测试技术研究所 北京100095(李滨)
摘    要:介绍了用最小二乘法评价线性测量系统线性度指标时,测量结果的不确定分析和评价过程,讨论了影响评价结果不确定度的几个主要误差来源,给出了减小线性度指标评价不确定度的主要措施:(1)环境控制措施,以减少环境带来的不确定度;(2)选取高精度信号,以减少信号源带来的不确定度。通过实例,给出了线性度指标不确定度分析和评价结果。本文方法及结论可应在于讲理标准进行性度指标的不确定分析上,也可用于估计线性度指标本身的不确定度。

关 键 词:最小二乘法  线性度  不确定度  评价  计量标准  仪器设备
文章编号:1002-6061(2002)04-0028-07
修稿时间:2002年1月21日

Evaluation of Uncertainty of Linearity Using LMS Method
Liang Zhi guo,Sun Jing yu,Li Bin.Evaluation of Uncertainty of Linearity Using LMS Method[J].Aviation Metrology & Measurement Technology,2002,22(4):28-33,46.
Authors:Liang Zhi guo  Sun Jing yu  Li Bin
Abstract:In this paper,it is described that the uncertainty of evaluation results of linearity of linear measurement system by using the least mean square method,including the courses of analysis and evaluation of uncertainty of it.Some error sources of linearity evaluation are discussed.Several main methods to decrease the linearity evaluation errors and evaluation uncertainty have been proposed.They are environment influence controlling,and decreasing the signal uncertainty to decrease the evaluation uncertainty caused by signal source.Through the practical example of experiment,the analysis and uncertainty evaluation results of linearity are presented in this paper,The courses and conclusion of analysis and uncertainty evaluation of linearity in this paper,can be applied to the uncertainty evaluation of masurement standards of linearity,can also be used in the uncertainty evaluation of linearity itself.
Keywords:LMS method  linearity  uncertainty analysis  evaluation  calibration
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