Characterization of transducers and resonators under high drive levels

S. Sherrit, X. Bao, D.A. Sigel, M.J. Gradziel, S.A. Askins, B.P. Dolgin, Y. Bar-Cohen
2001 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.01CH37263)  
In many applications, piezoelectric transducers are driven at AC voltage levels well beyond the level for which the material was nominally characterized. In this paper we describe an experimental setup that allows for the determination of the main transducer or resonator properties under large AC drive. A sinusoidal voltage from a waveform generator is amplified and applied across the transducer/resonator in series with a known high power resistor. The amplitude of applied voltage and the
more » ... ltage and the amplitude and the relative phase of the current through the resistor are monitored on a digital scope. The frequency of the applied
doi:10.1109/ultsym.2001.991910 fatcat:rq3xcztya5cr5bktqznltqkpem