FIELD: machine building.
SUBSTANCE: proposed method consists in installing radar at base distance from turbo machine at acute angle to blade rotation plate perpendicular, isolating Doppler frequency of signal from every blade, plotting autocorrelation functions of signals for every ith blade and determining amplitude of every ith blade proceeding from the comparison with preset threshold. Results of said comparison allows deciding on vibration amplitude and turbo machine blade rpm value. Additionally, proposed device comprises blade rpm meter connected in series with rpm indicator. Note here that radar output is connected with input of rpm meter.
EFFECT: increased quantity of measured parameters.
2 cl, 1 dwg
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