| 用冲击电流计测直螺线管磁场实验的误差理论分析 |
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| 引用本文： | 何毅,龚学余. 用冲击电流计测直螺线管磁场实验的误差理论分析[J]. 南华大学学报(自然科学版), 2003, 17(3): 81-84 |
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| 作者姓名： | 何毅 龚学余 |
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| 作者单位： | 1. 南华大学,数理学院,湖南,衡阳,421001
2. 南华大学,技术物理学院,湖南,衡阳,421001 |
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| 摘 要： | 根据冲击电流计测直螺线管磁场的实验电路原理,利用数值计算方法,对减少测量的系统误差进行了理论分析.得出如下结论:选择适当的仪器和回路的电阻使标准激励回路与待测激励回路的脉冲电流时间常数相近可以很好地减少系统误差.
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| 关 键 词： | 冲击电流计 时间常数 冲击灵敏度 系统误差 |
| 文章编号： | 1006-737X(2003)03-0081-04 |
| 修稿时间： | 2003-03-21 |
Theory Analysis on Error in the Experiment of Measuring Magnetic Field in Straight Solenoid by Impact Galvanometer |
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| HE Yi,GONG Xue-yu. Theory Analysis on Error in the Experiment of Measuring Magnetic Field in Straight Solenoid by Impact Galvanometer[J]. Journal of Nanhua University(Science and Technology), 2003, 17(3): 81-84 |
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| Authors: | HE Yi GONG Xue-yu |
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| Abstract: | According to circuit principle of the experiment of measuring magnetic field in straight solenoid by impact galvanometer, theory analysis on reducing system error is done by using numerical method. Because of the appropriate selection of the equipment and resistance in circuit, time constants in standard circuit and those in pulse circuit are nearly the same, thus system error can be deduced. |
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| Keywords: | impact galvanometer time constant pulse sensitivity system error |
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