| 相位差法测受迫振动的阻尼系数 |
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| 引用本文： | 王晓翰,王喆,尤亦庄,龚国斌,潘永华.相位差法测受迫振动的阻尼系数[J].物理实验,2007,27(7):29-30,33. |
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| 作者姓名： | 王晓翰 王喆 尤亦庄 龚国斌 潘永华 |
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| 作者单位： | 1. 南京大学,基础学科教学强化部,江苏,南京,210089
2. 南京大学,物理学系,江苏,南京,210093 |
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| 基金项目： | 国家基金委物理学人才基地基金 |
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| 摘 要： | 利用音叉在受迫阻尼振动中速度与驱动力之间的相位差测定了阻尼系数.该方法在系统的稳定状态下读数,克服了通常所用的振幅衰减方法中的不稳定性,可降低人为因素给测量带来的误差.
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| 关 键 词： | 音叉 受迫阻尼振动 阻尼系数 |
| 文章编号： | 1005-4642（2007）07-0029-02 |
| 修稿时间： | 2006-12-182007-03-27 |
Measuring the damping coefficient of forced vibration of tuning fork by the phase difference |
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| WANG Xiao-han,WANG Zhe,YOU Yi-zhuang,GONG Guo-bin,PAN Yong-hua.Measuring the damping coefficient of forced vibration of tuning fork by the phase difference[J].Physics Experimentation,2007,27(7):29-30,33. |
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| Authors: | WANG Xiao-han WANG Zhe YOU Yi-zhuang GONG Guo-bin PAN Yong-hua |
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| Institution: | 1. Department for Intensive Instruction, Nanjing University, Nanjing 210089, China; 2. Department of Physics, Nanjing University, Nanjing 210093, China |
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| Abstract: | The damping coefficient of forced vibration of tuning fork is measured by the phase difference between the vibration velocity and periodic driving force.With the method,the data are recorded in stable state,the instability of traditional amplitude decay method is overcome and the accidental error caused by operator's skill is reduced. |
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| Keywords: | tuning fork forced damping vibration damping coefficient |
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