NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
An imaging system for quantitive surface temperature mapping using two-color thermographic phosphorsA technique for obtaining detailed quantitative temperature distributions on test models in hypersonic wind tunnels is presented. This technique is based on the ratio of blue to green (450, 520 nm) emission from an UV (365 nm) excited phosphor coating. Separately filtered images are recorded from a three-tube color camera, utilizing off-the-shelf front-end video optics to discriminate wavelengths. Two demonstration studies in a 31-inch Mach 10 tunnel are discussed. One study presents the windward surface temperature-time history for a transatmospheric vehicle, and the other illustrates nosetip heating on a spherically blunted slender cone.
Document ID
19890040310
Document Type
Conference Paper
Authors
Buck, Gregory M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
INSTRUMENTATION AND PHOTOGRAPHY
Meeting Information
International Instrumentation Symposium(Albuquerque, NM)
Distribution Limits
Public
Copyright
Other