中文摘要：

基于压电技术的时均流能量收集是一种新型的环境能量收集形式，具有结构简单、成本低廉、无污染、无电磁干扰和使用寿命长的特点。按照不同的时均流能量收集原理分类介绍了最新研究进展，对各种装置之间的性能做了比较，其中采用时均流激声发动机驱动压电换能器的方法能够实现更高的能量转化效率。

英文摘要：

Mean flow energy harvesting using piezoelectric technology is a novel method of environmen- tal energy harvesting. With the advantages of simple structure, low cost, pollution-free, no electromagnetic interference, and long life, this method has been developing fast in recent years. According to the different working principles, the latest research for progresses of mean flow energy harvesting was introduced using piezoelectric technology and compared the performance between different devices. It is shown that using the mean flow acoustic engine to drive piezoelectric transducers can achieve a higher energy conversion efficiency.