中文摘要：

压电发电机是一种利用周围环境的能量发电,可向微功耗电路供电的能源装置.基于压电陶瓷的压电效应简要地分析了压电发电的工作机理;针对提高压电电源的能量转换量及转换效率,论述了国内外在新型压电材料、压电振子结构、共振频率调节方法及能量收集电路等方面的研究;指出了压电电源向能量来源的多样化、微型化和集成化方向发展.压电电源是绿色可持续能源装置,在航空航天、军工领域以及无线传感网络等方面有广阔的应用前景.

英文摘要：

Piezoelectric generator is an energy device which can supply power for micropower circuit making use of the energy of ambient environment to generate electricity. The working prineiple of piezoelectric generator based on piezoelectric effect of piezoelectric ceramic is briefly analyze＆ for improving amount of electrical energy and efficiency, the key technologies on piezoelectric materials, structure of piezoelectric patches, methods of resonant frequency adjustment and circuit of energy harvesting are introduced, which are researched at home and abroad; the developing directions are pointed out. Piezoelectric power supply is a green and renewable energy device, and it will be widely used in aeronautics and astronautics, military field and wireless sensor networks.