| 单电桥实验中检流计灵敏度的选择 |
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| 引用本文： | 李琼敏. 单电桥实验中检流计灵敏度的选择[J]. 贵州师范大学学报(自然科学版), 2001, 19(4): 75-78 |
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| 作者姓名： | 李琼敏 |
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| 作者单位： | 贵州师范大学,物理系,贵州,贵阳,550001 |
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| 摘 要： | 单电桥实验中 ,电桥灵敏度及其它实验条件对检流计灵敏度的影响 ,即电桥四个桥臂、桥臂倍率、检流计内阻应怎样选择才能使检流计的灵敏度达到回路灵敏度不足产生的误差小于电阻箱结构误差的三分之一这一要求
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| 关 键 词： | 检流计灵敏度 电桥的相对灵敏度 回路灵敏度 内阻 倍率 电阻箱结构误差 |
| 文章编号： | 1007-5570(2001)04-0075-04 |
| 修稿时间： | 2001-05-20 |
The discussion of choosing the galvanometre sensitivity in the experiment of Wheastone bridge |
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| LI Qiong-min. The discussion of choosing the galvanometre sensitivity in the experiment of Wheastone bridge[J]. Journal of Guizhou Normal University(Natural Sciences), 2001, 19(4): 75-78 |
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| Authors: | LI Qiong-min |
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| Abstract: | The galvanometre sensitivity is influenced by the bridge sensitivity and other conditions during the experiment of Wheatstone bridge. We should know how to choose the inner resistance of the galvanometre, the four arms of bridge and its multiplying power to meet the needs that the error of the galvanometre sensitivity caused by the inefficient sensitivtiy of the loop is less than one third of the error of the rheostat construction. |
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| Keywords: | galvanometer sensitivity relative sensitivity of the bridge sensitivity of the loop inner resistance multiplying power error of the rheostat construction |
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