Boosting the energy harvesting performance of cantilever structured magneto-mechano-electric generator by controlling magnetic flux intensity on magnet proof mass

作     者：Deepak R.Patil Seungah Lee Atul Thakre Ajeet Kumar Hyunseok Song Dae-Yong Jeong Jungho Ryu Deepak R.Patil;Seungah Lee;Atul Thakre;Ajeet Kumar;Hyunseok Song;Dae-Yong Jeong;Jungho Ryu

作者机构：School of Materials Science and EngineeringYeungnam UniversityGyeongsan38541South Korea Centre for Functional MaterialsVellore Institute of TechnologyVellore632014TamilnaduIndia Department of Materials Science&EngineeringInha UniversityIncheon22212South Korea Institute of Materials TechnologyYeungnam UniversityDaehak-roGyeongsan38541South Korea 

出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)

年 卷 期：2023年第9卷第4期

页      面：735-744页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0701[理学-数学] 0702[理学-物理学] 070101[理学-基础数学] 

基　　金：the National Research Foundation of Korea(NRFe2022R1F1A1073594).D.-Y Jeong thanks for the financial support from Inha University 

主　　题：Magneto-mechano-electric Magnetic flux concentrator Magnet proof mass Broadband IoT sensor 

摘      要：A cantilever-structured magneto-mechano-electric(MME)generator comprising a magnetoelectric composite with a magnet proof mass is a potential candidate for powering autonomous wireless sensor ***,the concept of a magnetic flux concentrator(MFC)to enhance the output performance of the MME generator by focusing the ultralow-intensity magnetic field into the MME generator was ***,the MFC-concentrated magnetic flux mostly focused on the end tip of the MME cantilever rather than at the magnet proof mass located on the cantilever *** that the torque generated by the magnet proof mass contributes more than half of the output power of an MME generator,optimizing the volume and position of the proof-mass with MFC is crucial for better ***,a smaller proof-mass is desirable for the long-term reliability of cantilevertype ***,we investigated the effect of the position and weight(volume)of the magnet proof mass with respect to the MFC on the output performance of the MME generator through finite element analysis and *** MME generator with the lighter magnet proof mass at the optimized position generated a maximum power of 5.35 mW under a 10 Oe magnetic field,which was 210%of that of the MME configuration used in our previous ***,the MME generator showed broadband characteristics around the practical frequency of 60 Hz,which could provide more freedom to design the harvester with high performance.