Device for actively reducing sound transmission, and panel comprising such device

    Research output: Patent

    28 Downloads (Pure)

    Abstract

    A device for actively reducing sound transmission, provided with a first and second wall ( 3, 5 ) enclosing an inner space ( 1, 2 ), wherein at least the second wall ( 5 ) is provided with actuators ( 6 ), for instance eletromagnetic actuators and/or piezoeleteric elements, wherein the said inner space is provided with at least one inner wall ( 4 ) to divide this space into at least two layers of air ( 1, 2 ), which inner wall ( 4 ) is arranged such that the layers of air ( 1, 2 ) are in fluid connection with each other.
    Original languageUndefined
    Patent numberUS7530426
    Priority date12/05/09
    Publication statusAccepted/In press - 12 May 2009

    Keywords

    • METIS-275858
    • IR-75929
    • EWI-19364

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