Optimal Design of Electromagnetic Harvester with Sputtered Thin NdFeB/Ta Film and Considering Lorentz Force
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- Yamaguchi Kohei
- Graduate School of Engineering, University of Hyogo
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- Fujita Takayuki
- Graduate School of Engineering, University of Hyogo
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- Kanda Kensuke
- Graduate School of Engineering, University of Hyogo
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- Maenaka Kazusuke
- Graduate School of Engineering, University of Hyogo
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This paper demonstrates an improvement in the generated power of a NdFeB electromagnetic vibration energy harvester by optimizing the device dimensions considering a mass-damper-spring system and the Lorentz force. The electromagnetic harvester follows a velocity-damped-resonant-generator (VDRG) model. When the electrical and mechanical attenuation coefficients are equivalent and the device is operated at a resonant state, the maximum power will be obtained. In this paper, we simulated and optimized the power generation considering a mass-damper-spring structure and the Lorentz force. From our simulation results, we determined an optimal design for 100 Hz and 3 µmp-p of sinusoidal external vibration to generate 0.42 µW of power from the device with a 10 × 10 × 0.5 mm3 active harvesting area and 50 of Q-factor. This exhibits power that is 43 times larger than the previous design.
収録刊行物
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- 電気学会論文誌E(センサ・マイクロマシン部門誌)
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電気学会論文誌E(センサ・マイクロマシン部門誌) 136 (3), 72-76, 2016
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390282679436692864
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- NII論文ID
- 130005131947
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- NII書誌ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL書誌ID
- 027160823
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 使用不可