| 刚体转动惯量实验误差分析 |
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| 引用本文： | 刘丽君,李学金,李兵. 刚体转动惯量实验误差分析[J]. 大学物理实验, 1999, 0(2) |
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| 作者姓名： | 刘丽君 李学金 李兵 |
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| 作者单位： | 深圳大学，深圳市特光照明有限公司 |
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| 摘 要： | 本文指出，在单通道计时法测量刚体转动惯量的实验中，当刚体系轴上摩擦力矩较小时，可通过取较大的予置数Ｎ，来减少由于测量时间的涨落引起的转动惯量的测量误差；同时指出，外力矩中不考虑物体下落的加速度ａ时所引起的转动惯量测量偏差不能忽略；前者使测量结果偏小，后者使测量结果偏大，ａ的计入使总的测量误差变小。
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| 关 键 词： | 转动惯量；测量误差 |
ERROR ANALYSIS ON THE ROTATIONAL INERTIA EXPERIMENT OF RIGID BODY |
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| Liu Lijun Li Xuejin. ERROR ANALYSIS ON THE ROTATIONAL INERTIA EXPERIMENT OF RIGID BODY[J]. Physical Experiment of College, 1999, 0(2) |
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| Authors: | Liu Lijun Li Xuejin |
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| Abstract: | In this paper it is pointed out that in the experiment of rotational inertia measurement of rigid body,when the friction on the axle of rigid body system is small the measuring errors induced by the fluctuation of the time measured can be reduced by choosing a bigger mumber N.Besides the measuring deviation caused by the unconsidered acceleration a in the exterior meoment of force can not be neglected. |
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| Keywords: | rotational inertia measuring errors |
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