| 光的衍射法测量杨氏模量 |
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| 引用本文： | 李彦敏,陈向炜. 光的衍射法测量杨氏模量[J]. 大学物理实验, 1998, 0(2) |
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| 作者姓名： | 李彦敏 陈向炜 |
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| 作者单位： | 商丘师范专科学校!商丘，476000 |
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| 基金项目： | 国家教委下达世界银行贷款资助 |
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| 摘 要： | 拉伸法测量金属丝杨氏模量的关键是如何测准金属丝在拉力作用下的微小伸长量。本文利用光的衍射法可以较精确地测量长度变化这一特点，对钢丝的杨氏模量进行了测量，给出测量杨氏模量的一种新方法。
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| 关 键 词： | 光的衍射 杨氏模量 钢丝 |
MEASURING YOUNG''''S MODULUS WITH THE METHOD OF LASER DIFFRACTION |
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| Li Yanming, Chen Xiangwei. MEASURING YOUNG''''S MODULUS WITH THE METHOD OF LASER DIFFRACTION[J]. Physical Experiment of College, 1998, 0(2) |
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| Authors: | Li Yanming Chen Xiangwei |
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| Abstract: | Young's modulus of steel wires is measured according to the quality that laser diffraction can be used to measure the changes of length accurately. A new method of measuring Young's modulus is given. |
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| Keywords: | laser diffraction Young's modulus steel wire |
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