FIELD: radio measurement technology. SUBSTANCE: modulation radiometer has aerial 1, commutator 2, frequency converter 3, square-law detector 4, videoamplifier 5, restrictors 7, 10, subtracter 8, scaling amplifier 9, adders 11, 18, selective amplifier 12, sync detector 13, integrator 14, registrar 15, attenuator 16, constant voltage source 17, reference voltage source 19, reference load 20. EFFECT: improved precision of measurement. 2 dwg
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Authors
Dates
1994-10-30—Published
1991-01-30—Filed