Lead-free (K, Na)NbO3 based impact type energy harvesters integrated with a cylindrical cavity for metal ball

Le Van Minh, Motoaki Hara, Hiroyuki Oguchi, Hiroki Kuwano

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

In this study, we developed lead-free (K, Na)NbO3 (KNN) based energy harvesters using impact of the metal ball. A metal ball was put in a built-in cylindrical cavity to perpendicularly impact the KNN/Si cantilever. Due to this impact, free oscillation of the cantilever was induced. This device can operate at low and wide frequency range of 20-190 Hz, and is suitable for the energy harvesting from the environmental vibration. We evaluated the influence of the impact point on the cantilever for the power generation. As a result, the harvested power increased up to 15-fold when the impact position moved from tip to base of the cantilever. The maximum power of 44 nW was obtained with a 2.5 mm length cantilever when the shaking frequency, acceleration and load resistance were 190 Hz, 39 m/s2 (4g) and 7.3 KΩ, respectively.

本文言語English
ホスト出版物のタイトルIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013
ページ833-836
ページ数4
DOI
出版ステータスPublished - 2013
外部発表はい
イベントIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013 - Taipei, Taiwan, Province of China
継続期間: 2013 1 202013 1 24

出版物シリーズ

名前Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN(印刷版)1084-6999

Conference

ConferenceIEEE 26th International Conference on Micro Electro Mechanical Systems, MEMS 2013
国/地域Taiwan, Province of China
CityTaipei
Period13/1/2013/1/24

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 機械工学
  • 電子工学および電気工学

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