| 利用菲涅耳双镜测金属线膨胀系数 |
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| 引用本文： | 花世群.利用菲涅耳双镜测金属线膨胀系数[J].光学技术,2002,28(3):280-281. |
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| 作者姓名： | 花世群 |
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| 作者单位： | 江苏理工大学,理学院,镇江,212013 |
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| 摘 要： | 分析了菲涅耳双镜在干涉实验中 ,由金属受热膨胀引起的光源位置变化对干涉条纹的影响 ,导出金属受热时绝对伸长量与干涉条纹位置变化之间的关系 ,并通过它对黄铜棒的线膨胀系数进行测量。
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| 关 键 词： | 线膨胀系数 干涉条纹 菲涅耳双镜 |
| 文章编号： | 1002-1582(2002)03-0280-02 |
| 修稿时间： | 2001年7月10日 |
A method of measuring metal linear expansion coefficient by Fresnel bimirror |
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| HUA Shi-qun.A method of measuring metal linear expansion coefficient by Fresnel bimirror[J].Optical Technique,2002,28(3):280-281. |
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| Authors: | HUA Shi-qun |
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| Abstract: | In the Fresnel bimirror experiment, the change of interference fringes caused by the displacement of light source due to the expansion of the heated metal is analyzed. The relation between the absolute extension of the heated metal and the displacement of interference fringes be determined and it can calculate yellow copper's linear expansion coefficient. |
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| Keywords: | linear expansion coefficient interference fringes Fresnel bimirror |
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