| 激光衍射法测量液体薄膜厚度的研究 |
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| 引用本文： | 苗润才,朱峰. 激光衍射法测量液体薄膜厚度的研究[J]. 激光技术, 2007, 31(5): 537-539 |
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| 作者姓名： | 苗润才 朱峰 |
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| 作者单位： | 陕西师范大学,物理学与信息技术学院,西安,710062;榆林学院,物理系,榆林,719000;陕西师范大学,物理学与信息技术学院,西安,710062;西安通信学院,基础部,西安,710106 |
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| 摘 要： | 为了测量厚度小于0.5mm不溶性液体薄膜的厚度,采用激光衍射法验证了液体薄膜的色散关系,并根据其机理,建立起一种实时、非接触的测量不溶性液体薄膜厚度的方法,测得了薄膜的厚度。结果表明,实验值与理论十分吻合。
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| 关 键 词： | 衍射光栅 液体薄膜 色散关系 表面波 |
| 文章编号： | 1001-3806（2007）05-0537-03 |
| 收稿时间： | 2006-07-26 |
| 修稿时间： | 2006-07-26 |
Study on measuring liquid film thickness by laser diffraction |
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| MIAO Run-cai,ZHU Feng. Study on measuring liquid film thickness by laser diffraction[J]. Laser Technology, 2007, 31(5): 537-539 |
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| Authors: | MIAO Run-cai ZHU Feng |
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| Abstract: | An experimental setup was constructed to measure the thickness less than 0.5mm of the indissoluble liquid film.When the laser falls on the liquid film surface waves,steady and visible diffraction patterns were obtained.Based on laser diffration,the theory of dispersion relations for waves on liquid film surfaces was testified.Subsequently,the thickness of the liquid film was measured carefully.The result shows that the measured thickness corresponded with the actual thickness very wel1.Based on the principle of this experiment,a new method for thickness measurement of indissoluble liquid film is built in a real time and non-contact way. |
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| Keywords: | diffraction gratings liquid film dispersion relations surface waves |
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