| 激光衍射法测量液体的表面张力及界面张力 |
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| 引用本文： | 刘香莲.激光衍射法测量液体的表面张力及界面张力[J].北京联合大学学报(自然科学版),2006,20(4):79-82. |
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| 作者姓名： | 刘香莲 |
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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 |
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| 摘 要： | 基于低频液体表面波的光衍射原理,提出了一种测量液体表面张力及界面张力的光学方法。系统地建立了测量理论,并给出了解析关系。实验上观察到高清晰的液体表面波衍射条纹,讨论了由衍射条纹测量液体特表面张力及界面张力的具体过程,给出了测量结果。本方法具有实时、非接触的特点。
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| 关 键 词： | 液体表面波 表面张力 界面张力 |
| 文章编号： | 1005-0310（2006）04-0079-04 |
| 收稿时间： | 2006-09-01 |
| 修稿时间： | 2006年9月1日 |
Measurement of the Liquid Surface and Interfacial Tensions by Light Diffraction |
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| LIU Xiang-lian.Measurement of the Liquid Surface and Interfacial Tensions by Light Diffraction[J].Journal of Beijing Union University,2006,20(4):79-82. |
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| Authors: | LIU Xiang-lian |
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| Abstract: | An optical way of measuring liquid surface and interfacial tensions, based on the light diffraction for low-frequency liquid surface waves,is put forward.The theory of measurement is systematically reviewed and then the expression is derived.Highly visible diffraction patterns are experimentally obtained.It is described how the measurement of liquid surface and interfacial tensions actually happens by means of the diffraction patterns.The result of themeasurement was achieved and experimental error analyzed aswell.This technique is real time and non-contact. |
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| Keywords: | surface wave surface tension interfacial tension |
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