| 基于数字电压表的惠斯通电桥实验 |
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| 引用本文： | 高峰.基于数字电压表的惠斯通电桥实验[J].新乡学院学报(自然科学版),2011(3):222-223,226. |
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| 作者姓名： | 高峰 |
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| 作者单位： | 商丘师范学院物理与信息工程系 |
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| 摘 要： | 在惠斯通电桥实验中,使用高阻抗的数字电压表代替检流计,使电桥灵敏度与桥臂电阻大小无关。能采用电阻箱中阻值大、准确度高的电阻盘,以达到减小测量误差的目的,并简化实验操作步骤。
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| 关 键 词： | 惠斯通电桥 检流计 灵敏度 电压表 |
Wheatstone Bridge Experiments Based on Digital Voltmeter |
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| Authors: | GAO Feng |
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| Institution: | GAO Feng(Department of Physics and Information Engineering,Shangqiu Normal University,Shangqiu 476000,China) |
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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.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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