The present disclosure is directed to controlling, reducing, and/or altering sound generated by an aerial vehicle, such as an unmanned aerial vehicle (“UAV”), while the aerial vehicle is airborne. For example, one or more transducers, such as piezoelectric thin-film transducers, or carbon nanotube transducers may be applied or incorporated into or on the surface of propeller blades that are used to aerially navigate the aerial vehicle. As the propeller blade rotates and generates sound, the transducers may be activated to generate one or more anti-sounds that cancel, reduce, or otherwise modify the sound generated by the rotation of the propeller blade. The anti-sound combines with the sound and causes interference such that the combined, or net-effect, is an overall cancellation, reduction, or other modification of the sound.


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    Titel :

    PIEZOELECTRIC TRANSDUCERS ON PROPELLER BLADES FOR SOUND CONTROL


    Beteiligte:
    BECKMAN BRIAN C (Autor:in) / CORALIC VEDRAN (Autor:in) / KIMCHI GUR (Autor:in)

    Erscheinungsdatum :

    22.06.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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