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Proceedings Paper

Development Of An Extended Blackbody Source For The Calibration Of Infrared Systems (I)
Author(s): Zhang Wei; Gao Kuiming; Xie Zhi
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Paper Abstract

A multiple-celled extended blackbody source with two temperatures which has an operating temperature range of 40°C to 150°C, utilizing water/copper gravity heat pipe for uniform and stable temperature control, is reported in this paper. And its effective working area is 420x234 mr11. AGA-780 thermovision and THERMO TRACER 6T61 are used to measure the temperature distribution over the working area of the extended source and the results indicate that the maximum value of the temperature difference within ninety eight percent of the working area is less than 1.5°C. A method of calculating the integrated emissivity of a multiple-celled extended source defined by us has been used to compute the integrated emissivity of the extended source: The results show that the integrated emissivity of the extended source to a concentric detector is 0.993 when the apparent emissivity of the black paint is 0.98.

Paper Details

Date Published: 14 July 1988
PDF: 6 pages
Proc. SPIE 0940, Infrared Scene Simulation: Systems, Requirements, Calibration, Devices, and Modeling, (14 July 1988); doi: 10.1117/12.947146
Show Author Affiliations
Zhang Wei, Department Three of Shenyang Institute of Technology (China)
Gao Kuiming, Northeast University of Technology (China)
Xie Zhi, Northeast University of Technology (China)

Published in SPIE Proceedings Vol. 0940:
Infrared Scene Simulation: Systems, Requirements, Calibration, Devices, and Modeling
R. Barry Johnson; Milton J. Triplett, Editor(s)

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