| 激光干涉法测量弹性模量 |
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| 引用本文： | 许明耀,胡毓华,吴瑜. 激光干涉法测量弹性模量[J]. 物理实验, 2005, 25(12): 3-5 |
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| 作者姓名： | 许明耀 胡毓华 吴瑜 |
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| 作者单位： | 武汉科技学院,数理系,湖北,武汉,430073 |
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| 摘 要： | 从光的干涉原理出发，讨论了金属丝弹性模量的光电测量方法．设计了激光干涉法测量长度微变量的测量装置，并介绍了测量原理，给出了动镜移动方向判别电路．
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| 关 键 词： | 弹性模量 激光干涉 长度微变量 |
| 文章编号： | 1005-4642（2005）12-0003-03 |
| 收稿时间： | 2005-07-16 |
| 修稿时间： | 2005-09-26 |
Measuring the elastic modulus on the basis of laser interference |
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| XU Ming-yao,HU Yu-hua,WU Yu. Measuring the elastic modulus on the basis of laser interference[J]. Physics Experimentation, 2005, 25(12): 3-5 |
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| Authors: | XU Ming-yao HU Yu-hua WU Yu |
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| Affiliation: | Department of Mathematics and Physics, Wuhan Institute of Science and Technology, Wuhan 430073, China |
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| Abstract: | The photoelectric method of measuring the elastic modulus of metal wire on the basis of laser interference is discussed. The apparatus is designed to measure length microvariations, and the measurement principle is also introduced. The distinguish circuit of orientation of moving mirror is given. |
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| Keywords: | elastic modulus, laser interference length microvariations |
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