An Improved Magnetoelectric Vibration Energy Harvester for Wireless Sensors

摘要：

　　An energy harvester is presented to scavenge ambient vibration energy using Terfenol-D/PMN-PT/Terfenol-D laminate magnetoelectric transducers.The harvester uses eight magnets to make up a magnetic circuit to produce a concentrated flux gradient,which makes the harvester generate high power.The nonlinear vibration characteristics and the electrical-output performances of the harvester at resonance are analyzed.A prototype has been fabricated and tested.The experimental results are in agreement with the analytical results.The prototype can produce a sufficient power to supply low consumption wireless sensors applied in the Internet of Things.

关键词： Energy harvesting Vibration harvester Magnetoelectric effect Magnetostrictive/piezoelectric laminate composite

作者: Zhang Zhang Xianzhi Dai Yong Wang

作者单位: School of Physics and Electronic Information,China West Normal University,Nanchong City, Sichuan, Ch School of Sciences,Southwest Petroleum University,Chengdu City, Sichuan, China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 1584-1588

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）