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	Applications of holographic interferometry in the field of liquid diffusion coefficient measurement
	Zhao, Changwei ; Li, Jiding ; Chen, Cuixian ; Ma, Peisheng
	2010-05-07 ; 2010-05-07
会议名称	WMSCI 2005: 9th World Multi-Conference on Systemics, Cybernetics and Informatics, Vol 3 ; 9th World Multi-Conference on Systemics, Cybernetics and Informatics ; Orlando, FL ; Web of Science
关键词	liquid diffusion coefficient holographic interferometry glucose solution measurement Computer Science, Artificial Intelligence Computer Science, Cybernetics Computer Science, Software Engineering Computer Science, Theory & Methods Telecommunications
中文摘要	Liquid diffusion coefficients are very important basic data for research and many applications in chemical engineering and in other fields, such as biological systems, pollution control and separation of isotopes. Holographic interferometer technique with accuracy and promptness is one of the most widely used techniques for diffusivity studies. We report an interferometric technique to determine the diffusion coefficient of transparent liquid solutions. As the diffusion progresses with time the refractive indices at different planes in the cell are different, and the characteristic extreme points of the fringe patterns shift outward. The interference fringes was obtained and recorded on a PC using a CCD camera. By judging interferogram with computer procedure the concentrations at different planes can be obtained by the relation between concentration and refractive indices, furthermore the diffusion coefficient can be obtained by calculation. In order to verify the accuracy and reliability of the instrument the diffusion coefficients of aqueous KCl solution at 298.15K were determined the results were good agreement with ones in literature. In addition, the diffusion coefficients of aqueous glucose solutions were obtained at different concentrations at 298.15K. The apparatus of holographic interferometry aided liquid diffusion coefficient determination is stable and reliable.
会议录出版者	INT INST INFORMATICS & SYSTEMICS ; ORLANDO ; 14269 LORD BARCLAY DR, ORLANDO, FL 32837 USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/17106]
专题	清华大学
推荐引用方式 GB/T 7714	Zhao, Changwei,Li, Jiding,Chen, Cuixian,et al. Applications of holographic interferometry in the field of liquid diffusion coefficient measurement[C]. 见:WMSCI 2005: 9th World Multi-Conference on Systemics, Cybernetics and Informatics, Vol 3, 9th World Multi-Conference on Systemics, Cybernetics and Informatics, Orlando, FL, Web of Science.

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