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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 8, Iss. 4 — Apr. 1, 2010
  • pp: 395–397

Effect of coating thickness on the calibration and measurement uncertainty of a wide-band liquid crystal thermography

Yu Rao, Shusheng Zang, and Chaoyi Wan  »View Author Affiliations

Chinese Optics Letters, Vol. 8, Issue 4, pp. 395-397 (2010)

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The liquid crystal thermography is a high-resolution and non-intrusive optical technique for full-field temperature measurement. We present detailed calibration data for a wide-bandwidth thermochromic liquid crystal (TLC) to investigate the effect of the coating thickness on the hue-temperature characteristics and the measurement uncertainty of the TLC. It is found that the coating thickness has appreciable effect on the TLC hue-temperature curve. For TLC coatings with the thickness over 20 μm, a thicker TLC coating shows a relatively smaller measurement uncertainty, but the effect of the coating thickness is non-distinctive on the measurement uncertainty.

© 2010 Chinese Optics Letters

OCIS Codes
(100.2000) Image processing : Digital image processing
(120.6780) Instrumentation, measurement, and metrology : Temperature
(160.3710) Materials : Liquid crystals

Yu Rao, Shusheng Zang, and Chaoyi Wan, "Effect of coating thickness on the calibration and measurement uncertainty of a wide-band liquid crystal thermography," Chin. Opt. Lett. 8, 395-397 (2010)

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