Power generation characteristics of PZT piezoelectric ceramics using drop weight impact techniques: Effect of dimensional size

In this study the relation between the generated open circuit output voltages and the generated electrical energy of PZT piezoelectric ceramic body with applied impact mechanical energy are studied. The output voltages and the generated electrical energy of PZT piezoelectric ceramic body are increased with the increasing of the applied mechanical energy. Under the same impact mechanical energy, the output voltages and the generated electrical energy of the PZT piezoelectric ceramic body are depending on both the dimensional size and properties of the samples. The PZT piezoelectric ceramic body with greater (t/D2) can produce a higher output voltage and higher generated electrical energy. With the same piezoelectric ceramic body size, under the same impact mechanical energy, the output voltage and the generated energy of soft type piezoelectric ceramic body is higher than that of hard type piezoelectric ceramic body, which is because the g33 and ε33Tvalue of soft type piezoelectric ceramic body is higher than that of hard type piezoelectric ceramic body.