The basics and issues of Thermochromic Liquid Crystal Calibrations

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 necessar...

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Main Authors: Abdullah, Nadia, Abu Talib, Abd. Rahim, Jaafar, Abdul Aziz, Mohd Salleh, Mohamad Amran, Chong, Wen Tong
Format: Article
Language:English
Published: Elsevier 2010
Online Access:http://psasir.upm.edu.my/id/eprint/17023/1/The%20basics%20and%20issues%20of%20Thermochromic%20Liquid%20Crystal%20Calibrations.pdf
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author Abdullah, Nadia
Abu Talib, Abd. Rahim
Jaafar, Abdul Aziz
Mohd Salleh, Mohamad Amran
Chong, Wen Tong
author_facet Abdullah, Nadia
Abu Talib, Abd. Rahim
Jaafar, Abdul Aziz
Mohd Salleh, Mohamad Amran
Chong, Wen Tong
author_sort Abdullah, Nadia
collection UPM
description 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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spelling upm.eprints-170232019-12-17T06:33:32Z http://psasir.upm.edu.my/id/eprint/17023/ The basics and issues of Thermochromic Liquid Crystal Calibrations Abdullah, Nadia Abu Talib, Abd. Rahim Jaafar, Abdul Aziz Mohd Salleh, Mohamad Amran Chong, Wen Tong 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. Elsevier 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/17023/1/The%20basics%20and%20issues%20of%20Thermochromic%20Liquid%20Crystal%20Calibrations.pdf 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 https://www.sciencedirect.com/science/article/pii/S0894177710000683?via%3Dihub#! 10.1016/j.expthermflusci.2010.03.011
spellingShingle Abdullah, Nadia
Abu Talib, Abd. Rahim
Jaafar, Abdul Aziz
Mohd Salleh, Mohamad Amran
Chong, Wen Tong
The basics and issues of Thermochromic Liquid Crystal Calibrations
title The basics and issues of Thermochromic Liquid Crystal Calibrations
title_full The basics and issues of Thermochromic Liquid Crystal Calibrations
title_fullStr The basics and issues of Thermochromic Liquid Crystal Calibrations
title_full_unstemmed The basics and issues of Thermochromic Liquid Crystal Calibrations
title_short The basics and issues of Thermochromic Liquid Crystal Calibrations
title_sort basics and issues of thermochromic liquid crystal calibrations
url http://psasir.upm.edu.my/id/eprint/17023/1/The%20basics%20and%20issues%20of%20Thermochromic%20Liquid%20Crystal%20Calibrations.pdf
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