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| 研究生： |
歐哲豪 Ou, Che-Hao |
|---|---|
| 論文名稱： |
Development of a Precision Tensiometer with Differential Capillary Instability Method Development of a Precision Tensiometer with Differential Capillary Instability Method |
| 指導教授： |
黃仲仁
Huang, Jung-Ren |
| 學位類別： |
碩士 Master |
| 系所名稱： |
物理學系 Department of Physics |
| 論文出版年： | 2017 |
| 畢業學年度： | 105 |
| 語文別： | 英文 |
| 論文頁數： | 53 |
| 中文關鍵詞： | Tensiometer 、Interfacial Tension 、Capillary Instability 、Sodium Dodecyl Sulfate |
| 英文關鍵詞： | Tensiometer, Interfacial Tension, Capillary Instability, Sodium Dodecyl Sulfate |
| DOI URL： | https://doi.org/10.6345/NTNU202203056 |
| 論文種類： | 學術論文 |
| 相關次數： | 點閱：82 下載：2 |
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無中文摘要
We created a new method, the Differential Capillary Instability Method, to measure the interfacial tension of fluid interfaces by creating two separated interfaces using capillary tubes. The differential nature from separated interfaces of this original design eliminates the need to explicitly define the pressure value at any of the interfaces, which sets a lower demand for the experimental condition. The capillary nature eliminates the need to numerically determine the geometrical profile of the interface. The instability nature of the measuring process allows us to pinpoint the value of interfacial tension with high precision. We’ve measured the surface tension of a few common samples with our Differential Capillary Instability Tensiometer and we compared the results with some published values. The measurement result shows a general consistency with the reported values acquired by other methods in several other researches. Various kinds of conditions have been carried out to test the method with different samples, surface property of capillary tubes, and formation speed of the interface. Some operation principles was concluded to optimize the measurement when applying the Differential Capillary Instability Method.
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