Angular position of helicopter rotor blade determined precisely. Accomplished by use of optical shaft-angle encoder called "256 Ring" on rotor swashplate. Each 360 degree rotation of helicopter main rotor broken down into 256 reflective segments. As rotor rotates, beam of light reflected in turn from each segment into optoelectronic system. One of 256 segments reflects larger pulse than others do. Position of rotor determined by counting number of pulses after this reference pulse. While swashplate mounting requirements unique to each type of helicopter, concept applicable to all types of rotorcraft.


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    Titel :

    Optical Shaft-Angle Encoder For Helicopter Rotor


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1993-05-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Shaft Angle Encoder

    Di Pietro, A. R. / Maclay, W. R. | IEEE | 1966


    Capacitive shaft-angle encoder

    Hruby, R. J. / Wilson, R. L. | NTRS | 1977


    Electronic shaft-angle encoder

    Powell, J. A. | NTRS | 1977



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