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

[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.

[发布机构] 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

[效力级别] 能源学

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