DEVICE FOR DYNAMIC BALANCE OF HELICOPTER ROTOR Russian patent published in 2012 - IPC B64C27/04 B64D45/00 G01M1/00 

FIELD: aeronautics.

SUBSTANCE: invention relates to optical electronic measuring technology and can be used for dynamic balancing of helicopter rotor. A device for dynamic balancing helicopter rotor includes an optical head video signal processing unit, sensor signal output unit and the sensor node signal processing. Node signal processing acceleration sensor includes an analog-digital converter, a buffer memory device, an adaptive filter, the unit of analysis imbalance, voice filter and Fourier's fast transform block, the acceleration sensor output via an analog-digital converter is connected to the buffer-storage, which accumulates signal in the accelerometer during one revolution of the screw. Buffer outputs are connected to the information accumulation unit with display unit, an adaptive filter input and the input of a bandpass filter. Adaptive filter output is connected to the input power unbalance analysis and the input display unit. The output bandpass filter is connected to the input display unit and the input block fast fourier transform, whose output is connected to the input display unit. The output of recognition unit of the first blade is connected to the input buffer drive, with entrance of the adaptive filter and with imbalance analysis unit input.

EFFECT: possibility to determine gravity centre deviation of the rotor.

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