| 转动惯量平行轴定理验证实验的改进方案 |
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| 引用本文： | 闫敏,戴语琴,袁俊,王晓雄. 转动惯量平行轴定理验证实验的改进方案[J]. 大学物理, 2020, 0(5): 66-69 |
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| 作者姓名： | 闫敏 戴语琴 袁俊 王晓雄 |
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| 作者单位： | 南京理工大学钱学森学院;南京理工大学理学院 |
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| 基金项目： | 南京理工大学创新性开放实验教学项目资助。 |
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| 摘 要： | 本文介绍了一种刚体转动惯量平行轴定理验证实验的改进方案.该方案通过调节对称放置在承物台上的两个钢柱到仪器转轴的距离来改变系统的转动惯量,使得总转动惯量可以在较大的范围内改变,并且始终保持了系统质量的对称性分布,从而有效地减小了实验的相对误差,提高了实验结果的可信度.
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| 关 键 词： | 转动惯量 平行轴定理 验证 实验方案 相对误差 |
An improvement to the verification of parallel axis theorem for moment of inertia |
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| YAN Min,DAI Yu-qin,YUAN Jun,WANG Xiao-xiong. An improvement to the verification of parallel axis theorem for moment of inertia[J]. College Physics, 2020, 0(5): 66-69 |
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| Authors: | YAN Min DAI Yu-qin YUAN Jun WANG Xiao-xiong |
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| Affiliation: | (Tsien Hsue-Shen College,Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China;College of Science,Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China) |
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| Abstract: | An improved experiment scheme about the verification of parallel axis theorem for moment of inertia is introduced. In the new scheme, the moment of inertia of the whole system is changed by changing the distance of the steel pillars to the instrument rotational axis symmetrically. The variation of moment of inertia is made in a large range and the symmetrical mass distribution is preserved. So that the relative error is significantly reduced and the reliability of the verification of the theorem is substantially improved. |
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| Keywords: | moment of inertia parallel axis theorem verification experimental scheme relative error |
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