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Proceedings Paper

Diffusivity measurement using compact low cost field portable device based on light deflection
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Paper Abstract

Imaging and measurement of diffusion process in liquid solutions is a challenging and interesting problem. Especially the mixing of binary liquid solutions in real-time provides an insight into the physics of diffusion as well as leads to measurement of diffusion coefficient, which is the most important parameter of a diffusing liquid solution. Accurate measurement of diffusion coefficient is important in areas ranging from oil extraction to pollution control. Interferometric methods provides very accurate measurement of diffusion coefficients albeit they impose very stringent optical conditions. Here we describe the development of a compact, easy to implement, easy to use and inexpensive device for imaging and quantification of the diffusion process. This technique does not require the stringent optical conditions of interferometric techniques. It computes the diffusivity values by measuring the amount of deflection happening to a line pattern printed on a paper and projected through the sample cell. The measured diffusivity values varied by less than 1%, with the values of diffusivities reported in literature.

Paper Details

Date Published: 22 June 2015
PDF: 6 pages
Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 95253W (22 June 2015); doi: 10.1117/12.2184789
Show Author Affiliations
Vani Chhaniwal, The Maharaja Sayajirao Univ. of Baroda (India)
Swapnil Mahajan, The Maharaja Sayajirao Univ. of Baroda (India)
Vismay Trivedi, The Maharaja Sayajirao Univ. of Baroda (India)
Arun Anand, The Maharaja Sayajirao Univ. of Baroda (India)


Published in SPIE Proceedings Vol. 9525:
Optical Measurement Systems for Industrial Inspection IX
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves, Editor(s)

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