
Proceedings Paper
Analysis of high-frequency thermal phenomena with a commercial imaging radiometerFormat | Member Price | Non-Member Price |
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Paper Abstract
We have developed a system which allows repetitive thermal events at
frequencies as high as 2 kHz to be imaged without aliasing. A prototype unit,
consisting of an unmodified scanning imaging radiometer (Inframetrics IR-600) , a
PC-AT compatible microcomputer, and specially developed interface hardware and
software, has been built and tested. The system functions as a video lock-in
amplifier in that temperature components of the scene which vary at a preselected
frequency are amplified, while other frequency components of the target
temperature average out over time.
Several applications of the system are discussed, including applications to
engine research, nondestructive evaluation of materials, and feature extraction in
high clutter environments. The tradeoffs between temporal resolution, spatial
resolution, and image acquisition time are also examined.
Paper Details
Date Published: 1 March 1990
PDF: 4 pages
Proc. SPIE 1313, Thermosense XII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (1 March 1990); doi: 10.1117/12.21951
Published in SPIE Proceedings Vol. 1313:
Thermosense XII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications
Sharon A. Semanovich, Editor(s)
PDF: 4 pages
Proc. SPIE 1313, Thermosense XII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (1 March 1990); doi: 10.1117/12.21951
Show Author Affiliations
Steven M. Shepard, U.S. Army Tank-Automotive Command (United States)
David T. Sass, U.S. Army Tank-Automotive Command (United States)
Published in SPIE Proceedings Vol. 1313:
Thermosense XII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications
Sharon A. Semanovich, Editor(s)
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