FIELD: measurement of thermal radiation. SUBSTANCE: the infrared radiometer comprising a modulator and a radiation receiver uses an electronic switch, direct component exclusive circuit, analog comparator, reversible binary and binary counters, digital comparator, controlled precision current source, pulse generator, pulse shaper, first and second inverters, NAND gate, first and second differentiating circuits and a circuit of inverters. EFFECT: enhanced accuracy of measurement. 5 dwg
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