Measurement of diffusion coefficient of transparent liquid solutions using Michelson interferometer

被引：20

作者：

Chhaniwal, VK ^{[1
]}

Anand, A ^{[1
]}

Narayanamurthy, CS ^{[1
]}

机构：

[1] Maharaja Sayajirao Univ Baroda, Fac Engn & Technol, Dept Appl Phys, Photon Lab, Vadodara 390001, Gujarat, India

来源：

OPTICS AND LASERS IN ENGINEERING | 2004年 / 42卷 / 01期

关键词：

diffusion coefficient; Michelson interferometer; interferogram;

D O I：

10.1016/j.optlaseng.2003.07.005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The study of diffusivity is important for the design of chemical equipment and its knowledge is needed for mass transfer studies and is the most fundamental property of any chemical system in which the chemical engineers are interested. Here, we report a new interferometric technique to determine the diffusion coefficient of transparent liquid solutions using Michelson interferometer geometry. The experimental cell containing the diffusing solution was kept in one of the arms of Michelson Interferometer. The liquids of differing concentrations were introduced in the cell. Two separate circular interference fringe systems were formed due to the two solutions and they were recorded on a PC using a CCD camera. The time variation of these interferograms yields the diffusion coefficient. The obtained diffusivity values matched very well with the existing experimental results. Detailed theoretical and experimental analysis is given in the paper. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：9 / 20

页数：12