How do piezoelectric transducers in ultrasound probes fail? I have a machine whose elements are being driven by an amplifier that is very noisy. The signal I see arriving from the power amplifier has white noise and also a popping/clicking characteristic.
I was wondering if driving an element outside of its resonant frequency would damage it. In principle, if the resonant frequency is 5MHz and you drive it with 8MHz, could that cause damage? What if there are multiple frequencies like in white noise... if you drive an element with high power white noise, would that damage the transducer too?
Any other way these elements could fail?