摘要
采用压电俘能技术有望实现无线传感器自供电,线性压电俘能器存在工作频带窄、俘能效率低的缺点,需要有效拓宽俘能器工作频带。相对其他宽频技术而言,非线性拓频技术具有不牺牲能量密度、性能可以调节等优点而备受关注,充分利用非线性技术有望提高压电俘能器俘能效率,增强其环境适应能力,从而加速俘能器实用进程。文中对不同类型非线性压电俘能器研究现状进行了综述,分析了各种非线性压电俘能器特性以及非线性压电俘能技术发展趋势。
Piezoelectric harvesting technology is expected to realize self-power of wireless sensor.However,linear piezoelectric energy harvester has narrow operating frequency range,low harvesting efficiency and need widen operating frequency range to improve performance.Compared with other techniques for widening frequency,nonlinear extension frequency technique has been receiving more and more attention due to adjustable performance and high-energy density.The piezoelectric energy harvesting efficiency and adaptability can be improved by employing nonlinear techniques,it can promote the development and application of energy harvesting.In view of this,current status of different nonlinear piezoelectric energy harvester are summaried,characteristic of various nonlinear piezoelectric energy harvester and development trend of nonlinear piezoelectric energy harvesting techniques are analyzed in this paper.Piezoelectric energy harvesting is a green,sustainable technique,and has a good application prospect.
作者
陈孝玉
张旭辉
左萌
汪林
佘晓
陈路阳
CHEN Xiao-yu;ZHANG Xu-hui;ZUO Meng;WANG Lin;SHE Xiao;CHEN Lu-yang(School of Mechanical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;College of Engineering and Technology,Zunyi Normal College,Zunyi 563006,China;Key Laboratory of Intelligent Detection and Health Maintenance of Coal Machinery and Electrical Equipment in Shaanxi,Xi'an 710054,China)
出处
《仪表技术与传感器》
CSCD
北大核心
2020年第12期42-52,共11页
Instrument Technique and Sensor
基金
国家自然科学基金资助项目(51974228)
国家绿色制造系统集成项目(工信部节函[2017]327号)
中国博士后科学基金面上资助项目(2015 M582692)
陕西省创新人才计划项目(2018TD-032)。
关键词
无线传感器
非线性
压电
能量收集
wireless sensor
nonlinear
piezoelectric
energy harvesting
