FIELD: physics.
SUBSTANCE: proposed method comprises construction of proportional-differential output signal feedback and modulation of proportional control coefficient in feedback of modulation h0. Output signal is filtered and harmonic components are extracted for them to be frequency-doubled and amplitude A-stabilised. Maximum amplitude of these harmonic components is set equal to modulation depth ho of feedback control coefficient selected subject to the following conditions: 
. Each of harmonic components is delayed for time T, where: 
, ω is frequency of main harmonic component, arg(W(jω)) is phase-frequency characteristic of oscillating object at frequency ω, and, thereafter, resultant signal is fed to control coefficient control input.
EFFECT: higher quality of operation, higher adjustment rate, lower mean error of output signal.
9 dwg
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