The basics and issues of Thermochromic Liquid Crystal Calibrations

被引：88

作者：

Abdullah, Nadia ^{[2
]}

Abu Talib, Abd. Rahim ^{[1
]}

Jaafar, Abdul Aziz ^{[1
]}

Salleh, Mohamad Amran Mohd ^{[3
]}

Chong, Wen Tong ^{[2
]}

机构：

[1] Univ Putra Malaysia, Fac Engn, Prop & Thermofluids Res Grp, Dept Aerosp, Serdang 43400, Selangor, Malaysia

[2] Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia

[3] Univ Putra Malaysia, Fac Engn, Dept Chem & Environm Engn, Serdang 43400, Selangor, Malaysia

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2010年 / 34卷 / 08期

关键词：

Thermochromic Liquid Crystals; Liquid Crystal Thermography; Calibration; Heat transfer; Colour space; HEAT-TRANSFER MEASUREMENTS; FILM THICKNESS; TEMPERATURE; THERMOGRAPHY; THERMOMETRY; DISTRIBUTIONS; HYSTERESIS; ANGLE;

D O I：

10.1016/j.expthermflusci.2010.03.011

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：1089 / 1121

页数：33

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