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  • 1. Hedberg, Claes
    et al.
    Ghazisaeidi, Hamid
    Haller, Kristian
    Mfoumou, Etienne
    Design Alterations of a High Power Air Transducer2007In: Japanese Journal of Applied Physics, ISSN 0021-4922, E-ISSN 1347-4065, Vol. 46, no 7, p. 4908-4911Article in journal (Refereed)
    Abstract [en]

    For certain resonant high-power air transducers exists a radiating cone which is in some way connected to a forcing piezoelectric ceramic. This study focuses purely on the cone structure itself, and the form of excitation that gives desired results on the vibration modes of the cone. In the new design three different parameters are changed from existing devices. They are: 1) the change of the round piezoelectric disc center position to a piezoelectric ring shape, while making the cone center fixed, 2) the cutting of the cone into leaves, and 3) the radial thickness decreasing with radius. In simulations, the new design yields considerably higher vibration amplitudes.

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