A Frequency-Independent Vibrational Energy Harvester using Symmetrically Charged Comb-Drive Electrodes with Heavily Doped Ion Electrets

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Mitsuya, H.^1 ; Ashizawa, H.^1 ; Ishibashi, K.^1 ; Homma, H.^2 ; Ataka, M.^2 ; Hashiguchi, G.^3 ; Fujita, H.^2 ; Toshiyoshi, H.^2

SAGINOMIYA SEISAKUSHO, Inc., 535 Sasai, Sayama, Saitama

350-1395, Japan^1

Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo

153-8505, Japan^2

Reserch Institute of Electronics, Shizuoka University, 3-5-1 Jyouhoku, Hamamatsu, Naka-ku, Shizuoka

432-8011, Japan^3

关键词: Comb electrodes;    Electromechanical forces;    Energy Harvester;    Frequency harmonics;    Frequency independent;    Heavily doped;    Potassium ions;    Vibrational energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012014/pdf
DOI  :  10.1088/1742-6596/773/1/012014

来源: IOP

【 摘 要 】

An energy harvester has been developed to efficiently earn energy from both cyclic and impulse vibrations by using a symmetric pair of comb-electrodes that are heavily doped with potassium-ions to form electrets. By equalizing the electromechanical forces on the opposing comb-drives, energy conversion efficiency is enhanced for both impulses and broad-frequency harmonic vibrations.