BLACKBODY REFERENCE FOR TEMPERATURES ABOVE 1200 K: STUDY FOR DESIGN REQUIREMENTS
ARMY MATERIALS RESEARCH AGENCY WATERTOWN MA
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Studies were made in the design of a temperature reference unit, incorporating a vacuum system with a sighting window, for temperatures ranging from 1200 K to 2100 K. In view of the many variables present, the design study was supplemented with analytical and experimental data. Included in this work were transmittance studies of different sighting windows for blackbody radiation, the study of thermal shielding, and experimental studies of blackbody radiation. The window materials available included fused silica, calcium fluoride, and sodium chloride. Recommendations are made in regard to structural materials, sighting windows, and thermal shielding.
- Test Facilities, Equipment and Methods