HELICOPTER AIR DATA SYSTEM

摘要

FIELD: physics.;SUBSTANCE: device has a fixed multichannel flow-type aerometric receiver in form of screening discs spaced apart along the height between which there are pressure tubes in the azimuthal plane at the same angles, and on the inner flow-type profiled surfaces of the screening discs there are holes which are throttled static pressure receivers. The pressure tubes and throttled static pressure receivers are connected to inputs of pneumoelectric transducers, whose outputs are connected through a series-connected multiplexer and an analogue-to-digital converter to a microprocessor, the output of which is the output of the system on altitude-velocity parameters of the helicopter.;EFFECT: simple design, reduced weight and size of the aerometric block, low cost and high accuracy of the helicopter air data system in the region of low and near-zero flight speeds.;6 cl, 6 dwg