METHOD FOR RESONANCE-TUNING OF OSCILLATORY CIRCUIT AT SINGLE-ENDED APPROACH TO RESONANCE

摘要

FIELD: radiomeasurements of frequency of resonance-tuned systems used in radio engineering and quantum mechanics. SUBSTANCE: method involves supply of signal to oscillatory circuit input and variation of oscillatory circuit parameter until desired reading is obtained on indicator coupled with oscillatory circuit; double-frequency signal is supplied, its frequencies being ω₁=ω_res+Δω, and ω₂=ω_res-Δω,, where Δω is chosen proceeding from expected quality factor of oscillatory circuit, and parameter of the latter is gradually varied to tune to resonance. Resonance-tuned moment is recorded while performing 100% modulation of output signal when its envelope is brought to zero. EFFECT: improved accuracy of resonance tuning due to high-accuracy resonance-tuning moment detection.