| 实验中的不确定度估算 |
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| 引用本文： | 何文森.实验中的不确定度估算[J].实验科学与技术,2012,10(3):19-21. |
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| 作者姓名： | 何文森 |
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| 作者单位： | 电子科技大学物理电子学院,成都,610054 |
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| 摘 要： | 在我国1990年5月审查通过、并作为国家标准颁布实施的《测量误差及数据处理技术规范》中,明确规定测量结果的评定用不确定度而不再用误差,所以掌握不确定度的计算在实验物理教学中具有非常重要的意义。文中介绍了用逐差法求待测物理量时,逐差项值可视为(等精度重复)多次测量数据,以求得有关物理量测量的A类不确定度的基本方法。通过实例阐述了逐差法在实验中的具体应用。
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| 关 键 词： | 逐差法 逐差项值 误差 A类不确定度 |
Calculation of Uncertainty in Experiment |
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| Institution: | HE Wen-shen (School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China) |
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| Abstract: | ＂The Standard of Data Processing and the Measurement Error ＂ which has been established as the national standard in May, 1990, which clearly states that uncertainty is used instead of error in measurement results. Therefore, it is very important to learn the calculation of uncertainty in teaching experimental physics. This paper illustrates that when the ＂method of successive minus＂ is used in the measuring process, the data conducted by this method （repeated with consistent accuracy） can be treated as data from multiple measurements in order to get ＂type A uncertainty＂ of the physical quantities. This paper introduces the application of the ＂method of successive minus＂ during the experiments with examples. |
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| Keywords: | method of successive minu data of successive minu error type A uncertainty |
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