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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Abstract
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.
Journal
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- IEEJ Transactions on Sensors and Micromachines
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IEEJ Transactions on Sensors and Micromachines 136 (3), 72-76, 2016
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679436692864
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- NII Article ID
- 130005131947
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- NII Book ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL BIB ID
- 027160823
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed