基于压电材的振能量收集技术研究设计书#40;思考#41;136043310.docVIP

题 目 基于压电材料的振动能量 收集技术研究 基于压电材料的振动能量 收集技术研究 [摘要]伴随着无线传感器网络技术和可携带器件的发展，电池续航供能成为其发展的瓶颈之一。为了获得无线生命周期的自主供电系统，利用周围环境的振动能转换为电能为电子器件供电成为亟待解决的问题。其中利用压电材料把振动能转换为电能越来越受到关注，成为能量领域的研究热点。然而目前存在的问题是，等效电路模型理论有待进一步完善；器件产生的输出电压较小，器件结构有待改进；手机电路及收集器件需进一步优化等。 针对以上问题，本文对目前国内外压电振动能量收集的发展状况进行了研究，对压电材料的类型、振动模式以及收集电路和器件进行了比较分析，提出了压电振动能量收集器的研究内容。 最后，对全文工作进行了总结，并且对下一步计划进行展望，提出新的研究思路。 [关键词]振动能；压电效应；压电材料；能量收集电路 Research on Vibration Energy Harvesting Technology Based on Piezoelectric material Jing Chuang （Grad 11，Class 04, Major Technique and instrumentation of Measurements, Mechanical Engineering Dept., Shaanxi University of Technology, Hanzhong 723000, Shaanxi） Tutor: Wang Nan Abstract: With the development of wireless sensor network technology and portable devices, the power supply via the battery becomes one of the bottlenecks. In order to achieve finite lifetime of self-powered systems, the desiderating thing is to provide electric energy for such devices and networks by utilizing the vibration energy from the ambient environment.Converting vibration energy into electric energy into electric energy by piezoelectric materials attracts more and more attention and becomes the hot point in micropower field. However the problems are that the modeling theory harvester are ought to be further investgated, the structures of the piezoelectric energy harvester are ought to be improved because of the small output voltage and optimizing the harvesting circuits and storage devices are much in demand. According to the above problems,this dissertation investgated the development trend of the piezoelectric vibration energy harvesting at home and abroad, and compared the merits and shortcoming of the different parts of structures and harvesting circuits, finally,proposed the research content of piezoelectric vibration energy harvester. In the end,the work of this