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| 电阻丝电阻率的测量及测量结果的评定 | |
| 引用本文： | 郭琦. 电阻丝电阻率的测量及测量结果的评定[J]. 大学物理实验, 2016, 0(3): 118-121 |
| 作者姓名： | 郭琦 |
| 作者单位： | 南京师范大学,江苏 南京,210042 |
| 摘 要： | 采用惠斯通电桥测量了电阻丝的电阻率,对各不确定度分量及自由度进行了评定,描述了电桥灵敏度引入的测量不确定度评定方法,给出了电阻丝电阻率的测量值及不确定度评定结果。 |
| 关 键 词： | 电桥 电阻率 不确定度 |
Measurement of Resistivity of Electric Resistance Wire and Evaluation of Uncertainty in Measurement Result |
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| Abstract: | The electrical resistivity of resistance wire was measured by Wheastone brige method.The component of uncertainty and degree of freedom were evaluated.The measurement uncertainty method of the bridge sensi-tivity was introduced. The measurement result and combined standard uncertainty of electrical resistivity were assessed. |
| Keywords: | electrical bridge resistivity of electric resistance uncertainty evaluation |
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