| Digital speckle pattern interferometric measurement of diffusioncoefficients in hydrogels |
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| 作者姓名： | 周金芳 韩雁 章献民 徐坚 |
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| 作者单位： | OU Jin-fang 1，HAN Yan 1ZHANG Xian-min 1，XU Jian 2(1 Department of Information Science & Electronic Engineering，Zhejian g University，Hangzhou 310027，China)(2 Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，Ch ina) |
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| 基金项目： | ProjectSupportedbyNationalNaturalScienceFoundationofChina (No .2 990 40 0 7)，ZhejiangProvincialNaturalScienceFoundationofChina (No .
6990 3 1)，andSRFforROCS，SEM，China |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒａｔｅｏｆｄｉｆｆｕｓｉｏｎｏｆｓｕｒｆａｃｔａｎｔｓｉｎｇｅｌｓｉｓａｎｉｍｐｏｒｔａｎｔｐｒｏｐｅｒｔｙｂｏｔｈｆｏｒｔｈｅｃｈａｒａｃｔｅｒｉｚａ ｔｉｏｎｏｆｓｏｌｕｔｅ ｇｅｌｉｎｔｅｒａｃｔｉｏｎｓａｎｄｆｏｒｔｈｅｄｅｓｉｇｎｏｆｎｏｖｅｌａｐｐｌｉｃａｔｉｏｎｓｏｆｓｕｃｈｍａｔｅｒｉａｌｓ (Ｋｏｎｇｅｔａｌ.,1 997) .Ｃｏｎｖｅｎｔｉｏｎａｌｌｙ ,ｄｉｆｆｕｓｉｏｎｃｏｅｆｆｉ ｃｉｅｎｔｓｉｎｇｅｌｓａｒｅｍｅａｓｕｒｅｄｂｙｍｏｎｉｔｏｒｉｎｇｔ…
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Digital speckle pattern interferometric measurement of diffusioncoefficients in hydrogels |
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| Abstract: | The technique of real-time digital speckle pattern interferometry is p roposed to study diffusion of surfactants in hydrogel. The diffusion coefficient is simply and directly determined from the interferograms. An example of diffus ion coefficient measurement of surfactant in agarose gel demonstrates the useful ness of the method. The results obtained are compared with the theoretical simul ating values. |
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| Keywords: | Hydrogel Diffusion coefficient Speckle pattern in terferometry Surfactant |
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