1 October 1991 Surface temperature and shear stress measurement using liquid crystals
Author Affiliations +
In this paper a video digital-imaging technique is described that is currently being developed to permit the assessment of surface temperature and shear stress distributions using liquid crystals. The background to liquid crystal research in aerodynamics is given first and this is followed by a description of the experimental apparatus, along with the method of digital analysis of the color components of the liquid crystal traces. Some typical calibrations of the crystals are then presented as well as details of the main aspects that need to be considered when using liquid crystals as a quantitative measurement technique. The use of the technique is then illustrated by taking the simple case of a heated circular jet impinging normally onto a flat plate.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Norman Toy, Eric Savory, Peter J. Disimile, "Surface temperature and shear stress measurement using liquid crystals", Proc. SPIE 1489, Structures Sensing and Control, (1 October 1991); doi: 10.1117/12.46593; https://doi.org/10.1117/12.46593


Use of thermochromatic liquid crystals in the study of jet...
Proceedings of SPIE (September 29 1995)
Automated melanoma diagnosis system
Proceedings of SPIE (July 08 1999)
Liquid crystal temperature measurement for real-time control
Proceedings of SPIE (October 01 1998)
Fast Times At High Temperatures
Proceedings of SPIE (March 20 1985)
Making saturated facial images useful again
Proceedings of SPIE (September 16 1999)

Back to Top