E. Riera, A. Cardoni, J. A. Gallego-Juárez
Conferencia invitada Tecniacústica, Valladolid, 2-4 Oct. 2013 Conferencias y Comunicaciones TECNIACUSTICA 2013, p1577-1584, ULT-0.001C.I, ISBN: 978-84-87985-23-2
In the present paper, nonlinear effects such us a resonant frequency shifts, hysteresis phenomena, amplitude saturation, and modal interactions are experimentally investigated in the tuned responses of several piezoelectric devices. To mitigate the nonlinear behaviour of such airborne ultrasonic transducers, for practical purposes, different strategies will be presented and discussed. The experimental results obtained by applying these strategies will be also illustrated and analized. The improvement in the dynamic response of such transducers will be shown.
