| 转动惯量测试仪的改进与应用 |
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| 引用本文： | 王春香,陈丽梅,陈佰树,王乐新.转动惯量测试仪的改进与应用[J].实验科学与技术,2010,8(6):180-182. |
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| 作者姓名： | 王春香 陈丽梅 陈佰树 王乐新 |
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| 作者单位： | 黑龙江八一农垦大学文理学院,黑龙江大庆163319 |
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| 基金项目： | 黑龙江省教改工程项目，黑龙江八一农垦大学校教改课题 |
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| 摘 要： | 为了更准确地测出不同形状物体的转动周期,在转动惯量测试仪上加了角度范围为0°～180°的尺子,学生能够直接读出初始摆角;每次测量的摆角不变,弹簧扭转系数也不发生变化,使得实验测量容易而又精确。文章还介绍了如何测量和计算物体的转动惯量和误差的数据处理过程,能够达到良好的教学效果。
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| 关 键 词： | 转动惯量 角度 周期 误差 |
Improvement and application in moment of inertia testing instrument |
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| Institution: | WANG Chun-xiang,CHEN Li-mei,CHEN Bai-shu(School of Arts and Science,Heilongjiang Bayi Agricultural University,Daqing 163319,China) |
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| Abstract: | In order to exactly measure the rotor periodic time,setting a ruler of 0°-180°on the moment of inertia testing instrument,students can read the initial rotor angle directly. To keep the rotor angle constant every time,the torsion coefficient of elastic spring couldn＇t change. It makes the measure simply and accurately. The essay also introduces the data-processing of how to compute moment of inertia and data-error,which makes the teaching effect better. |
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| Keywords: | moment of inertia angle periodic time error |
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