A small calibrator has been constructed to facilitate wide-band liquid crystal temperature measurements on complex, curved surfaces. The calibrator’s size, 21.3 mm by 20.3 mm by 10.0 mm thick, makes it ideal for in-situ calibrations at multiple sites on curved surfaces. Its design utilizes the heating/cooling ability of a thermoelectric cooler, and its temperature is quickly and accurately controlled by computer. To test the calibrator’s accuracy, a liquid crystal sample was calibrated. Subsequent comparisons to thermistor measurements of a uniform temperature copper block painted with liquid crystals showed the calibration to be accurate to +/−0.1°C between the red start and the approximate blue start temperatures, and the maximum error was less than +/−0.3°C in the dark blue/violet region.
Skip Nav Destination
Article navigation
Technical Notes
A Novel Mini Calibrator for Thermochromic Liquid Crystals
Christopher J. Elkins, Physical Science Research Associate,,
Christopher J. Elkins, Physical Science Research Associate,
Mechanical Engineering Department, Building 500, Stanford University, Stanford, CA 94305
Search for other works by this author on:
John Fessler, Assoc. Mem. ASME, Senior Engineer,,
John Fessler, Assoc. Mem. ASME, Senior Engineer,
Exponent, 149 Commonwealth Drive, Menlo Park, CA 94025
Search for other works by this author on:
John K. Eaton, Fellow ASME, Professor,
John K. Eaton, Fellow ASME, Professor,
Mechanical Engineering Department, Building 500, Stanford University, Stanford, CA 94305
Search for other works by this author on:
Christopher J. Elkins, Physical Science Research Associate,
Mechanical Engineering Department, Building 500, Stanford University, Stanford, CA 94305
John Fessler, Assoc. Mem. ASME, Senior Engineer,
Exponent, 149 Commonwealth Drive, Menlo Park, CA 94025
John K. Eaton, Fellow ASME, Professor,
Mechanical Engineering Department, Building 500, Stanford University, Stanford, CA 94305
Contributed by the Heat Transfer Division for publication in the Journal of Heat Transfer. Manuscript received by the Heat Transfer Division December 14, 1999; revision received November 21, 2000. Associate Editor: A. Majumdar.
J. Heat Transfer. Jun 2001, 123(3): 604-607 (4 pages)
Published Online: November 21, 2000
Article history
Received:
December 14, 1999
Revised:
November 21, 2000
Citation
Elkins , C. J., Fessler , J., and Eaton , J. K. (November 21, 2000). "A Novel Mini Calibrator for Thermochromic Liquid Crystals ." ASME. J. Heat Transfer. June 2001; 123(3): 604–607. https://doi.org/10.1115/1.1370505
Download citation file:
Get Email Alerts
Cited By
On Prof. Roop Mahajan's 80th Birthday
J. Heat Mass Transfer
Thermal Hydraulic Performance and Characteristics of a Microchannel Heat Exchanger: Experimental and Numerical Investigations
J. Heat Mass Transfer (February 2025)
Related Articles
Three-Dimensional Visualization and Measurement of Temperature Field Using Liquid Crystal Scanning Thermography
J. Heat Transfer (October,2001)
A Light Transmission Based Liquid Crystal Thermography System
J. Heat Transfer (January,2008)
Liquid-Crystal Thermography: Illumination Spectral Effects. Part
1—Experiments
J. Heat Transfer (June,2005)
Related Proceedings Papers
Related Chapters
Chitosan-Based Drug Delivery Systems
Chitosan and Its Derivatives as Promising Drug Delivery Carriers
EVALUATION OF THERMAL PROBE COOLING EFFECT BASED ON PIPELINE PARALLEL OPTICAL CABLE
Pipeline Integrity Management Under Geohazard Conditions (PIMG)
View Angle Characters of the New Type LCD
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3