How Do We Define the Efficiency of MEMS Vibrational Energy Harvester?

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2021/05/01

タイトル(英語): How Do We Define the Efficiency of MEMS Vibrational Energy Harvester?

著者名: Hiroshi Toshiyoshi (Institute of Industrial Science, The University of Tokyo)

著者名(英語): Hiroshi Toshiyoshi (Institute of Industrial Science, The University of Tokyo)

キーワード: VDRG，energy harvester，efficiency，vibration，resonance，impedance

要約(英語): Conversion efficiency of vibrational energy harvester is defined primarily by the ratio between the mechanical power incoming to the system and the electrical output power. Measuring the output power is straightforward but how is the incoming power measured? Such a physical quantity is known only when the force acting on the power generator is measured by using a force sensor virtually inserted between the vibration source and the energy harvester, which does not look practical. In this article, we look into an analytical model for a vibrational energy harvester or so-called velocity-damped resonant generator (VDRG) and discuss indices alternative to the efficiency of power conversion.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.141 No.5 （2021） 特集：令和2年度センサ・マイクロマシン部門総合研究会

本誌掲載ページ: 116-124 p

原稿種別: 解説論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/141/5/141_116/_article/-char/ja/