METHOD OF ICING CONTROL AND DEVICE FOR ITS REALISATION Russian patent published in 2015 - IPC B64D15/20 

FIELD: physics, alarm.

SUBSTANCE: method and device for icing control relate to equipment of icing detection on a surface of an aircraft and on air intakes of its engines. The device for icing control comprises a temperature sensor and a signal processor. The signal processor is connected by an interface bus with a transceiver. The outlet of the transceiver is a digital outlet of the device. The signal processor via a key is connected to a heater input. The heater is built into the resonator body. To the resonator base an exciting converter is mechanically connected, which excites harmonic oscillations. The exciting converter is connected to an impedance converter. The impedance converter by the interface bus is connected to a signal processor. Inputs of a block of intelligent keys and a temperature sensor are connected to the signal processor. During device operation they measure and normalize the actual part of complex resistance of the exciting converter and search for resonance frequency, compare it to reference frequency, calculate increment of resonance frequency and perform permission control of this increment. Afterwards information is issued along a code communication line for starting heating of the sensor resonator, as a result ice is discharged. Additionally they measure ambient temperature. They perform compensation of temperature error of resonance frequency. During icing discrete signals are generated to start an air-heat anti-icing system, as well as signals to start sections of an electric thermal anti-icing system, duration of start of which is proportionate to measured temperature. Increased noise immunity and accuracy.

EFFECT: expanded area of device usage due to increased operability in case of natural contamination and due to minimized mass of discharged ice.

5 cl, 1 dwg