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ICOP & ICPET 2017, 23 - : 529-532 Back to browse issues page
Measuring the temperature gradient in liquids using moiré deflectometry
Ahad Saber * 1, Samira Rezaei , Sahar Golmohamadi
Abstract:   (1090 Views)

In this paper a new method for measuring the temperature gradient in liquids is introduced which is based on moiré deflectometry. A cell containing liquid is placed on top of a cold plate with temperature  so that the bottom of liquid gets same temperature with the plate. The top of liquid is also isothermal with the environment. The temperature of different points inside the cell is varied with time until getting a stable temperature distribution. The temperature gradient causes a diffraction index gradient that makes the moiré fringes to deflect. The moiré fringes are recorded using a camera and is analyzed using Fourier transforming method. The deflection of moiré fringes is used to get the refractive index distribution inside the cell and then the temperature distribution is derived.

Keywords: Fringe analyzing, Moiré deflectometry, Temperature gradient.
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Type of Study: Research | Subject: Special
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Saber A, Rezaei S, Golmohamadi S. Measuring the temperature gradient in liquids using moiré deflectometry. ICOP & ICPET. 2017; 23 :529-532
URL: http://opsi.ir/article-1-1131-en.html


Volume 23 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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