Measurement of Diffusion Coefficient of Liquids by Using an Asymmetric Liquid-Core Cylindrical Lens: Observing the Diffusion Process Directly

doi:10.1088/0256-307X/31/5/054203

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Abstract：We report a method for measuring diffusion coefficient D of liquids by using an aplanatic and asymmetric cylinder lens with a liquid core, which is designed as both a diffusion pool and the main imaging element. The precision is better than 10^?4 RIU in measuring refractive index. The D values of ethylene glycol (EG) in water are measured for various EG concentrations at 25°C, and D_inf=1.043×10^?5 cm²/s under the condition of infinite dilution is obtained. The method is characterized by observing the diffusion process directly, faster measurement and obtaining the D value under the condition of infinite dilution.

出版日期: 2014-04-24

:	42.30.-d	(Imaging and optical processing)
	07.60.-j	(Optical instruments and equipment)
	07.05.Fb	(Design of experiments)

引用本文:

. [J]. 中国物理快报, 2014, 31(05): 54203-054203.
LI Qiang, PU Xiao-Yun, YANG Rui-Fen, ZHAI Ying. Measurement of Diffusion Coefficient of Liquids by Using an Asymmetric Liquid-Core Cylindrical Lens: Observing the Diffusion Process Directly. Chin. Phys. Lett., 2014, 31(05): 54203-054203.

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https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/31/5/054203 或 https://cpl.iphy.ac.cn/CN/Y2014/V31/I05/54203

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