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Chromatic Image Analysis For Quantitative Thermal MappingChromatic image analysis system (CIAS) developed for use in noncontact measurements of temperatures on aerothermodynamic models in hypersonic wind tunnels. Based on concept of temperature coupled to shift in color spectrum for optical measurement. Video camera images fluorescence emitted by phosphor-coated model at two wavelengths. Temperature map of model then computed from relative brightnesses in video images of model at those wavelengths. Eliminates need for intrusive, time-consuming, contact temperature measurements by gauges, making it possible to map temperatures on complex surfaces in timely manner and at reduced cost.
Document ID
19950065316
Document Type
Other - NASA Tech Brief
Authors
Buck, Gregory M. (NASA Langley Research Center, Hampton, VA.)
Date Acquired
August 17, 2013
Publication Date
April 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 4
ISSN: 0145-319X
Subject Category
PHYSICAL SCIENCES
Report/Patent Number
LAR-14386
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.