| 温差电动势对测量灵敏电流计内阻的影响 |
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| 引用本文： | 孙丙西.温差电动势对测量灵敏电流计内阻的影响[J].内蒙古民族大学学报(自然科学版),2004,19(4):460-461. |
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| 作者姓名： | 孙丙西 |
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| 作者单位： | 内蒙古民族大学,物理与机电学院,内蒙古,通辽,028043 |
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| 摘 要： | 以测量灵敏电流计内阻为例，分析了温差电动势产生的原因，是由于光点式灵敏电流计内部有照明光源，与外电路存在温差而引起的．并定量给出了由此带来的测量误差．介绍了消除温差电动势影响的方法．
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| 关 键 词： | 灵敏电流计 温差电动势 零点漂移 内阻 |
| 文章编号： | 1671-0185(2004)04-0460-02 |
| 修稿时间： | 2003年11月20 |
Effect of Thermo-electromotive Force on Measuring the Inner Resistance of Sensitive Galvanometer |
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| SUN Bing-xi.Effect of Thermo-electromotive Force on Measuring the Inner Resistance of Sensitive Galvanometer[J].Journal of Inner Mongolia University for the Nationalities(Natural Sciences),2004,19(4):460-461. |
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| Authors: | SUN Bing-xi |
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| Abstract: | In this paper, through measuring the inner resistance of sensitive galvanometer, the reason of inducing thermo-electromotive force was analyzed. The result shows that the inner lighting source and outer thermoelectricity of sensitive galvanometer cause thermo-electromotive force. Finally, the method of eliminating of thermo-electromotive force was given. |
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| Keywords: | Sensitive galvanometer Themo-elecromotive force Zero drift Inner resistance |
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