Black body radiator with reflector

Electric resistance heating devices – Heating devices – Radiant heater

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Details

392422, 250504R, G01J 552

Patent

active

055948324

ABSTRACT:
A black body radiator for calibrating infrared measuring devices in the form of a heatable body is heated by means of a heating foil in the form of a metallic electrically excellently conducting heating coil embedded in a plastic sheet. The heating foil is adhered in excellently thermally conductive manner to a rear surface of the heatable body of the black body radiator. At a slight distance from and slightly inclined to the heating foil surface an infrared-radiation-reflecting mirror is arranged. The mirror reflects the radiation coming from the heating coil and incident thereon into the intermediate spaces of the heating coil so that the radiation passes through the heating foil and is absorbed by the rear side of the black radiator. The intermediate space between the heatable body and the mirror is evacuated. Furthermore, the rear side of the mirror and a holder are provided with a thermal insulation, for example in the form of ceramic paper.

REFERENCES:
patent: 1196073 (1916-08-01), Berry et al.
patent: 3069525 (1962-12-01), Waters
patent: 3126468 (1964-03-01), Aitken et al.
patent: 4184066 (1980-01-01), Svoboda
patent: 4346651 (1982-08-01), Schickedanz
patent: 4387301 (1983-06-01), Wirick et al.
patent: 4724356 (1988-02-01), Daehler
Abstract of Japanese Patent No. 63-138220. Patent Abstracts of Japan. vol. 12, No. 396. Oct. 21, 1988.

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