ICING INDICATOR Russian patent published in 2012 - IPC G08B19/02 

FIELD: information technology.

SUBSTANCE: icing indicator has a unit for indicating overshooting of the allowable degree of icing, a first threshold device, a pulse generator, a power amplifier, an optical emitter, a transmitting lens, a polariser, a control surface for depositing ice, an analyser, a receiving lens, a photodetector, an amplifier, a detector, an integrator, a pulse former, a device for rotating the polarisation plane of the analyser, a device for measuring amplitude-modulation factor, a unit for indicating the degree of icing, a second threshold device, a logic device and an emergency signalling device.

EFFECT: high information content and reliability of indication.

1 dwg