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The basics and issues of Thermochromic Liquid Crystal Calibrations


Abdullah, Nadia and Abu Talib, Abd. Rahim and Jaafar, Abdul Aziz and Mohd Salleh, Mohamad Amran and Chong, Wen Tong (2010) The basics and issues of Thermochromic Liquid Crystal Calibrations. Experimental Thermal and Fluid Science, 34 (8). pp. 1089-1121. ISSN 0894-1777; ESSN: 1879-2286


Thermochromic Liquid Crystals (TLCs) have been widely used by researchers in heat transfer and fluid flow communities as a thermal imaging tool for mapping surface and spatial temperature distributions. In order to utilize TLCs for quantitative temperature measurements, calibration is first necessary to determine the colour–temperature relationship of TLCs. This paper is aimed to provide novice and intermediate users of TLCs with a review on the basics and issues pertaining to calibrations of TLCs, particularly for surface thermography. A general overview of TLCs, the basic elements of a TLC calibration rig, and the common calibration methods of TLCs are described. The crucial issues associated with calibrations of TLCs, namely, imaging, colourimetry, illumination, hysteresis, film thickness and aging, and the methods used to compensate for these effects are discussed. This paper is intended to provide useful information to novice and intermediate users of TLCs, particularly on TLC calibrations.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1016/j.expthermflusci.2010.03.011
Publisher: Elsevier
Keywords: Calibration; Colour space; Heat transfer; Liquid Crystal Thermography; Thermochromic Liquid Crystals
Depositing User: kmportal
Date Deposited: 02 Jan 2014 06:28
Last Modified: 17 Dec 2019 06:33
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.expthermflusci.2010.03.011
URI: http://psasir.upm.edu.my/id/eprint/17023
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