中文摘要：

简述了悬臂式PZT-金属复合结构在力作用下产生电荷的机理，设计并制备了一种压电式发电机，构建了试验平台，进行了器件弯曲振动时电能输出效果的实验研究。实验时，进行单频的稳态正弦激振实验：由激振器产生输出正弦激振力，作用于器件端部使其产生弯曲振动。结果表明，在所给的实验条件下，使用研制的器件实现了对弯曲振动能量的转换，输出电功率88．8μw。

英文摘要：

The mechanism of electric charge appearance is described when the PZT-metal composite cantilever is under the force action. Then the piezoelectric device for power generation was designed and fabricated. The experimental system was setup. And experimental study was made to analyze the effect of energy conversion of bending vibration and power generation output. In the experiments of single frequency stable state sine wave vibration, the shaker was connected to an amplifier with sine wave function generator. When the shaker vibrated, the piezoelectric device would vibrate and bend at a certain frequency and amplitude. The results show that under given conditions, the device can be used to convert the bending vibration energy into useful electrical power and a power of 88.8 μW is available. The experimental results prove that the PZT-metal composite cantilever can be likely used for the micro energy conversion in the low frequency environment.