METHOD OF CONTROLLING AIRCRAFT STRUCTURE STATE AND DEVICE TO THIS END Russian patent published in 2012 - IPC G01M17/02 G01S13/88 

FIELD: transport.

SUBSTANCE: micro radars are arranged, for example, on aircraft undercarriage legs so that directional pattern of each micro radar covers strictly definite part of "its" tire. Radar signal is irradiated toward each tire in running before take-off and from undercarriage extension in landing to shutdown of engines and signal reflected from tires is received to analyse selected harmonics of reflected signal to define state of every tire. If tire displays faulty state alarm signal is generated. Proposed device comprises onboard first detector, data acquisition device, onboard device, emergent state signaling unit and power supply. Additionally it incorporates second detector, unit of pickups, alarm indicator. Note here that 1^st, 2^nd and 3^rd inputs of second detector are connected with 1^st, 2^nd and 3^rd outputs of the unit of pickups, outputs of second detector are connected with the group of third inputs of data acquisition device with its 2^nd output connected with alarm indicator output. Unit of pickups consists of undercarriage limit switches unit, motion sensor and altimeter.

EFFECT: higher quality of control.

4 cl, 2 dwg