| 用补充法测物体的转动惯量 |
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| 引用本文： | 康晓,周风琴. 用补充法测物体的转动惯量[J]. 实验室科学, 2009, 0(3): 60-62 |
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| 作者姓名： | 康晓 周风琴 |
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| 作者单位： | 辽宁师范大学,物理与电子技术学院,辽宁,大连,116029 |
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| 摘 要： | 三线摆是研究转动惯量平行轴定理的重要仪器之一。在测量中使用传统方法用三线摆测量物体转动惯量时误差往往过大。而用补充法将两物体分别置于三线摆下摆盘的上下,使两物体的整体重心在下摆盘上,从而大大降低误差。
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| 关 键 词： | 转动惯量 刚体 三线摆 补充法 |
Measure the moment of inertia in replenishment |
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| KANG Xiao-shen,ZHOU Feng-qin. Measure the moment of inertia in replenishment[J]. Laboratory Science, 2009, 0(3): 60-62 |
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| Authors: | KANG Xiao-shen ZHOU Feng-qin |
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| Affiliation: | KANG Xiao - shen, ZHOU Feng - qin (College of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China) |
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| Abstract: | Three -wire pendulum is one of the important equipments to study the parallel -axis theorem of the moment of inertia. In the process of measure the moment of inertia with three - wire pendulum by traditional method, the error of the experiment is always very large. But using the method of replenishment, we fix one circular column upon the lower plate and the other one below the lower plate. In this way, the gravity center will drop to the lower plate, and the error will decrease. |
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| Keywords: | moment of inertia rigid body three - wire pendulum replenishment |
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