| 惠斯登电桥实验的改进 |
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| 引用本文： | 代文江,马文革,王国荣.惠斯登电桥实验的改进[J].大学物理实验,2009,22(1):60-63. |
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| 作者姓名： | 代文江 马文革 王国荣 |
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| 作者单位： | 黑龙江大学,哈尔滨,150080 |
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| 摘 要： | 在惠斯登电桥实验中，使用高阻抗的数字电压表代替检流计，使电桥的灵敏度与桥臂电阻的大小无关。这样，就能使用电阻箱中阻值大、准确度高的电阻盘，以达到减小测量误差的效果，并简化了实验操作步骤。
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| 关 键 词： | 惠斯登电桥 检流计 灵敏度 电压表 |
IMPROVEMENTS OF THE WHEATSTONE BRIDGE EXPERIMENTS |
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| Dai Wenjiang,Ma Wenge,Wang Guorong.IMPROVEMENTS OF THE WHEATSTONE BRIDGE EXPERIMENTS[J].Physical Experiment of College,2009,22(1):60-63. |
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| Authors: | Dai Wenjiang Ma Wenge Wang Guorong |
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| Institution: | Heilongjiang University;Harbin 150080 |
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| Abstract: | In the Wheatstone bridge experiment,large inner resistance voltmeter can be used instead of the galvanometer,and the Wheatstone bridge delicacy will be independent of the value of arm resistance.In this way,we can reduce the measuring errors and operation steps by using large resistance and high precision resistance panes in the resistance box. |
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| Keywords: | Wheatstone bridge galvanometer delicacy voltmeter |
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