Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy Harvester
With the development of low-power technology in electronic devices, the wireless sensor network shows great potential in applications in health tracing and ocean monitoring. These scenarios usually contain abundant low-frequency vibration energy, which can be collected through appropriate energy con...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/11/11/1009 |
| _version_ | 1797547858917851136 |
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| author | Mingxue Li Huichao Deng Yufeng Zhang Kexin Li Shijie Huang Xiaowei Liu |
| author_facet | Mingxue Li Huichao Deng Yufeng Zhang Kexin Li Shijie Huang Xiaowei Liu |
| author_sort | Mingxue Li |
| collection | DOAJ |
| description | With the development of low-power technology in electronic devices, the wireless sensor network shows great potential in applications in health tracing and ocean monitoring. These scenarios usually contain abundant low-frequency vibration energy, which can be collected through appropriate energy conversion architecture; thus, the common issue of limited battery life in wireless sensor devices could be solved. Traditional energy-converting structures such as the cantilever-beam type or spring-mass type have the problem of high working frequency. In this work, an eccentric pendulum-based electromagnetic vibration energy harvester is designed, analyzed, and verified with the finite element analysis method. The pendulum that contains alternative distributed magnets in the outer side works as a rotor and has the advantages of a simple structure and low center frequency. The structure size is well scalable, and the optimal output performance can be obtained by optimizing the coil thickness and width for a given diameter of the energy harvester. The simulation results show that the energy harvester could work in ultra-low frequencies of 0.2–3.0 Hz. A full-scale prototype of the energy harvester is manufactured and tested. The center working frequency is 2.0 Hz with an average output power of 8.37 mW, which has potential for application in driving low-power wireless sensor nodes. |
| first_indexed | 2024-03-10T14:50:14Z |
| format | Article |
| id | doaj.art-e673b669e04e4b849abcdab54e626a2a |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T14:50:14Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-e673b669e04e4b849abcdab54e626a2a2023-11-20T21:04:25ZengMDPI AGMicromachines2072-666X2020-11-011111100910.3390/mi11111009Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy HarvesterMingxue Li0Huichao Deng1Yufeng Zhang2Kexin Li3Shijie Huang4Xiaowei Liu5MEMS Center, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechanical Engineering and Automation, Beihang University, Beijing 100191, ChinaMEMS Center, Harbin Institute of Technology, Harbin 150001, ChinaMEMS Center, Harbin Institute of Technology, Harbin 150001, ChinaMEMS Center, Harbin Institute of Technology, Harbin 150001, ChinaMEMS Center, Harbin Institute of Technology, Harbin 150001, ChinaWith the development of low-power technology in electronic devices, the wireless sensor network shows great potential in applications in health tracing and ocean monitoring. These scenarios usually contain abundant low-frequency vibration energy, which can be collected through appropriate energy conversion architecture; thus, the common issue of limited battery life in wireless sensor devices could be solved. Traditional energy-converting structures such as the cantilever-beam type or spring-mass type have the problem of high working frequency. In this work, an eccentric pendulum-based electromagnetic vibration energy harvester is designed, analyzed, and verified with the finite element analysis method. The pendulum that contains alternative distributed magnets in the outer side works as a rotor and has the advantages of a simple structure and low center frequency. The structure size is well scalable, and the optimal output performance can be obtained by optimizing the coil thickness and width for a given diameter of the energy harvester. The simulation results show that the energy harvester could work in ultra-low frequencies of 0.2–3.0 Hz. A full-scale prototype of the energy harvester is manufactured and tested. The center working frequency is 2.0 Hz with an average output power of 8.37 mW, which has potential for application in driving low-power wireless sensor nodes.https://www.mdpi.com/2072-666X/11/11/1009eccentric pendulumultra-low frequencyvibration energy harvesting |
| spellingShingle | Mingxue Li Huichao Deng Yufeng Zhang Kexin Li Shijie Huang Xiaowei Liu Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy Harvester Micromachines eccentric pendulum ultra-low frequency vibration energy harvesting |
| title | Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy Harvester |
| title_full | Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy Harvester |
| title_fullStr | Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy Harvester |
| title_full_unstemmed | Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy Harvester |
| title_short | Ultra-Low Frequency Eccentric Pendulum-Based Electromagnetic Vibrational Energy Harvester |
| title_sort | ultra low frequency eccentric pendulum based electromagnetic vibrational energy harvester |
| topic | eccentric pendulum ultra-low frequency vibration energy harvesting |
| url | https://www.mdpi.com/2072-666X/11/11/1009 |
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