Ultra-broadband electromagnetic MEMS vibration energy harvesting

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Liu, Huicong^1,2 ; Dhakar, Lokesh^2,3 ; Lee, Chengkuo^2

Robotics and Microsystems Center, School of Mechanical and Electric Engineering, Soochow University, Suzhou, China^1

Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore^2

NUS Graduate School for Integrative Sciences and Engineering, Singapore, Singapore^3

关键词: Energy Harvester;    Fabrication and characterizations;    Non-linear springs;    Operating bandwidth;    Ultra-broadband;    Ultrawide bandwidth;    Vibration energy harvesting;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012049/pdf
DOI  :  10.1088/1742-6596/476/1/012049

来源: IOP

【 摘 要 】

This paper presents the design, fabrication and characterization of an electromagnetic MEMS energy harvester with ultra-broad operating bandwidth. The beam stretching induced nonlinear spring stiffness enables the resonance to extend from 65 Hz to 340 Hz and 400 Hz at accelerations of 0.5g and 1.0g, respectively. The ultra-wide bandwidth could benefit the harvester device for more efficient vibration energy harvesting.