宽频压电俘能技术的研究综述

A Review of Research in Broadband Piezoelectric Power Generation Technology

随着微电子技术和无线电技术的飞速发展,无线传感技术在多个领域有了广泛的应用。由于传统供电方式存在的问题日益突出,靠吸收环境振动能量的压电俘能方式成为了人们研究的热点。由于环境振动频率的不固定,如何在宽频带内实现有效俘能成为了压电俘能技术的研究关键。从固有频率调节和拓宽频带两个方面对近年来宽频压电俘能技术研究现状进行了介绍,分析了不同方式的俘能效果和应用环境,对研究具有实用价值的压电俘能装置有借鉴作用。

With the rapid development of microelectronics technology and wireless technology, wireless sensors are widely applied in many areas. As the problem in traditional way of energy supply is increasingly prominent, piezoelectric power generation, a way of absarbing ambient energy, has become the facus for the researchers. But the vibration frequeney of the environmental is not fixed at one certain point, so it becomes the key point to efficiently capture the ambient energy in a wide frequency range. It reviews the broadband piezoelectric power generation technology of recent years in two ways, one is tuning the frequency, the other is how to broaden the frequency band. The efficiency and application environment are also evaluated, and plays a guiding role in researching on piezoelectric power generation far practical use.