FIELD: electrical engineering. SUBSTANCE: infrared radiation source means to be used for some material heating in temperature interval from 400 to 1400 deg C. Infrared radiation sours resistivity member is made like spiral fixed at flexible thin frame enveloped by many layers of glass fiber insulation and it is insulating too by same material. EFFECT: higher reliability. 1 dwg
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Authors
Dates
1997-02-27—Published
1994-05-17—Filed