FIELD: aeronautical engineering; detection of icing and measuring of ice thickness on flying vehicle surface.
SUBSTANCE: proposed method includes calculation of period of digitization frequency and delay time for compensation of initial phase shift, harmonic analysis of Fourier transformation, calculation of frequency and resonance Q-factor, detection of icing on basis of these data, calculation of ice thickness and rate of icing. Device proposed for realization of this method includes icing sensor with temperature sensor, transmitting converter, resonator, receiving converter and heating element, as well as processing unit with transceiver, signal processor, power amplifier, frequency synthesizer, amplifier with programmed gain factor and switch.
EFFECT: enhanced accuracy, sensitivity and noise immunity at detection of icing and measurement of ice thickness and rate of icing.
5 cl, 1 dwg
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