Abstract
In this study, the relationship between the generated voltages of piezoelectric ceramics Cymbal transducer to which impact mechanical energy was applied was studied. The generated voltages of the piezoelectric ceramics Cymbal transducer increased as the applied mechanical energy were increased. At a single impact mechanical energy, the generated voltages of the piezoelectric ceramics Cymbal transducer were much higher than the voltages of an uncapped piezoelectric ceramics disk. The generated voltages of the piezoelectric ceramics Cymbal transducer depended on the geometric parameters and the metal thickness of the end-cap. The generated voltage of piezoelectric ceramics Cymbal transducer with thick metal end-cap was lower than the voltage of transducers with thin metal end-cap.
Highlights
Piezoelectric ceramics can interchange electrical energy and mechanical motion or force
Compared with the results determined in a previous study [10], the results of the present study suggested that the generated voltage of the Cymbal transducer was much higher than that of an uncapped piezoelectric ceramic disk
The generated voltage of piezoelectric ceramic Cymbal transducers increased as the applied mechanical energy was increased
Summary
Piezoelectric ceramics can interchange electrical energy and mechanical motion or force. Goldfarb et al [4] presented a linearized model of a PZT piezoelectric ceramics stack and analyzed the efficiency of the stack when it generated power. They determined that the maximal efficiency occurs in a region in which the frequency was much lower than the structural resonance of the stack. The authors using drop weight impact techniques to study the output electrical characteristics of PZT piezoelectric ceramics Cymbal transducer, and the effects of geometric parameters of metal end-cap on the output electrical characteristics are study
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