| 对动力学法测定材料弹性模量实验的研究 |
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| 引用本文： | 刘燕,周岚. 对动力学法测定材料弹性模量实验的研究[J]. 物理实验, 2007, 27(1): 45-48 |
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| 作者姓名： | 刘燕 周岚 |
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| 作者单位： | 扬州大学,物理科学与技术学院,江苏,扬州,225002 |
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| 摘 要： | 简要分析了动力学法测定材料弹性模量实验在理论推导中存在的困难,讨论了实验中悬丝的材料、直径等影响因素,并提出相关建议;同时对利用李萨如图形判断共振频率的方法做了介绍和说明.
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| 关 键 词： | 弹性模量 共振法 共振频率 悬丝 |
| 文章编号： | 1005-4642（2007）01-0045-04 |
| 修稿时间： | 2006-06-19 |
Study on experiment of elastic modulus measurement using dynamic method |
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| LIU Yan,ZHOU Lan. Study on experiment of elastic modulus measurement using dynamic method[J]. Physics Experimentation, 2007, 27(1): 45-48 |
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| Authors: | LIU Yan ZHOU Lan |
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| Affiliation: | College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China |
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| Abstract: | The difficulty existed in the education of the principle of measuring elastic modulus using dynamic method is analyzed briefly. The effects of the material type and diameter of the suspending string are discussed, and some advices are put forward. A method using Lissajous figures to estimate the resonant frequency is also introduced. |
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| Keywords: | elastic modulus resonance method resonant frequency suspending string |
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