FIELD: measuring technique.
SUBSTANCE: resonance are of frequencies of object is revealed, admissible level of exciting influence is found while taking into account the preset speed of change in frequency when passing resonance area. Harmonic excitation influence is settled to be not higher than lower (top) value of frequency of resonant area. Excitation influence frequency is increased (reduced) at preset speed. Parameters of excitation influence and parameters of motion of object are measured and registered depending on time under condition that excitation influence frequency belongs to resonant frequency area. Spectral density of parameters of motion of object is found on the base of registered parameters of motion. Spectral density is used to judge of resonance frequency, Q-factor and amplitude of stationary oscillations.
EFFECT: reduced time of measurement.
2 dwg
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