抄録
The effects of mechanical loading conditions on power generation property of PZT piezoelectric ceramic were investigated. In this approach, several PZT ceramic plates were combined together in the longitudinal direction. The electric voltage increases with the highest electric voltage being obtained for four PZT ceramic plates; and the maximum electric voltage becomes almost constant even if number of PZT ceramic plates combined together increases more than four. This is attributed to the low strain level and the mixed strain (compressive and tensile strain). The effect of strain characteristic on the electric voltage value was analyzed numerically using our strain definition, and a clear correlation between the extent of compressive strain and generated electric voltage is clarified.
