Overview Of Blackbody Radiation Sources

Arthur J. Cussen

doi:10.1117/12.933745

28 December 1982 Overview Of Blackbody Radiation Sources

Arthur J. Cussen

Proceedings Volume 0344, Infrared Sensor Technology; (1982) https://doi.org/10.1117/12.933745
Event: 1982 Technical Symposium East, 1982, Arlington, United States

Abstract

The theoretical blackbody has an emissivity of one. The requirements for a practical blackbody are: 1. emissivity near unity 2. uniform cavity temperature 3. known temperature 4. known limiting aperture area. Primary standard blackbodies operate at pure elemental freezing point temperatures with reverse conical cavities. Secondary standard blackbodies with reverse conical cavities have continuously adjustable temperature and are available for temperature ranges from 10 to 3300 K. Transfer of calibration between primary, secondary and working standards blackbodies is made using contact temperature sensors and radiometers. The conical cavity, V-grooved and multihexaprismatic surfaces are practical for working standards blackbodies. Conical cavity sources with cavity diameters from 0.040 to 4.0 inches are available. Extended area flat plate sources from 1 millimeter square to 2.3 meters square and larger are practical.

Citation Download Citation

Arthur J. Cussen "Overview Of Blackbody Radiation Sources", Proc. SPIE 0344, Infrared Sensor Technology, (28 December 1982); https://doi.org/10.1117/12.933745

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