NOISE-RESISTANT OPTOELECTRONIC ICING DETECTOR OF AN UNMANNED AIRCRAFT AIRFRAME Russian patent published in 2022 - IPC G08B19/02 

FIELD: aircraft technology.

SUBSTANCE: invention relates to signaling devices that react to the formation of ice on the surface of aircraft. The noise-resistant optoelectronic icing detector contains a generator of rectangular pulse packs and control signals 1, an optical emitter power controller 2, an optical emitter 3, an optically transparent element of a section of the airframe’s aerodynamic surface exposed to icing 4, a photodetector 6, an optically transparent element of a section of the airframe’s aerodynamic surface exposed to icing 5, a photodetector 7, a comparator 8, a peak detector with closed input 9, a rectangular pulse generator 10, a logic element “AND” 11, a pulse counter 12, a pulse counter 13, a code comparator 14, an icing signal generation device 15 based on a signal from the comparator about the coincidence of the states of the counters.

EFFECT: increase in the noise immunity of the optoelectronic icing detector.

1 cl, 4 dwg