DEVICE TO REVEAL ICING AVAILABILITY AND INTENSITY Russian patent published in 2010 - IPC B64D15/20 

FIELD: transport.

SUBSTANCE: invention relates to appliances intended for revealing aircraft icing availability and intensity. Proposed device comprises indicator, icing transducer including air temperature pickup, first and second sensitive elements (SE) each incorporating heater and thermal pickup. Heaters of first and second SEs are connected to outputs of power controllers, respectively. Additionally, first power controller control unit, first and second adder and amplifier are incorporated with the device.Control unit output is connected to first power controller input and first input of second adder, while first adder output is connected to amplifier input. Amplifier output is connected to indicator and second adder second input. Second adder output is connected to second power controller input. Transmission ratio the first adder first, second and third inputs makes ε, (1-ε), and -1, while that of the second adder first and second inputs equals ε and 1, with ε being smaller than unity.

EFFECT: simplified design, smaller sizes and weight, higher reliability.

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