Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitor
Abstract An electret‐based electrostatic energy harvester featuring tuneable resonance frequency, small size, light weight, and high output power was designed and its performance predicted by the finite element method and verified by experiment. The device consists of a resilient fluorinated polyeth...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-06-01
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| Series: | IET Nanodielectrics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/nde2.12007 |
| _version_ | 1797988781920354304 |
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| author | Xingchen Ma Xiaoya Yang Heinz von Seggern Ying Dai Pengfei He Gerhard M. Sessler Xiaoqing Zhang |
| author_facet | Xingchen Ma Xiaoya Yang Heinz von Seggern Ying Dai Pengfei He Gerhard M. Sessler Xiaoqing Zhang |
| author_sort | Xingchen Ma |
| collection | DOAJ |
| description | Abstract An electret‐based electrostatic energy harvester featuring tuneable resonance frequency, small size, light weight, and high output power was designed and its performance predicted by the finite element method and verified by experiment. The device consists of a resilient fluorinated polyethylene propylene (FEP) electret film that is metallised on one side with a small seismic mass attached to its centre and an arc‐shaped counter electrode. In principle, such an energy harvester is mechanically a mass‐spring system and electrically a self‐bias voltage variable capacitor and converts vibrational energy into electrical energy by electromechanical coupling. For an energy harvester sample with dimensions of 30 × 10 × 9 mm for which the last dimension denotes the initial depth of the centre of the harvester, the resonance frequency can be tuned from 17 to 70 Hz by stretching the length of the FEP film loaded with a given seismic mass of 0.06 g. For a seismic mass of 0.1 g, the harvester generated a power up to 797 μW to a matching resistor at its resonance frequency of 17 Hz at an acceleration of 1×g, where g is the gravity of the earth. Such energy harvesters are promising candidates for use in self‐powered electronic devices and wireless sensor network nodes. |
| first_indexed | 2024-04-11T08:09:20Z |
| format | Article |
| id | doaj.art-90e61b3133c4413f96a2a94d101a1dbb |
| institution | Directory Open Access Journal |
| issn | 2514-3255 |
| language | English |
| last_indexed | 2024-04-11T08:09:20Z |
| publishDate | 2021-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Nanodielectrics |
| spelling | doaj.art-90e61b3133c4413f96a2a94d101a1dbb2022-12-22T04:35:26ZengWileyIET Nanodielectrics2514-32552021-06-0142536210.1049/nde2.12007Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitorXingchen Ma0Xiaoya Yang1Heinz von Seggern2Ying Dai3Pengfei He4Gerhard M. Sessler5Xiaoqing Zhang6Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and Engineering Tongji University Shanghai ChinaSchool of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaMaterial‐ and Geo‐Sciences Technical University of Darmstadt Darmstadt GermanySchool of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaSchool of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaInstitute for Telecommunications Technology Technical University of Darmstadt Darmstadt GermanyShanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and Engineering Tongji University Shanghai ChinaAbstract An electret‐based electrostatic energy harvester featuring tuneable resonance frequency, small size, light weight, and high output power was designed and its performance predicted by the finite element method and verified by experiment. The device consists of a resilient fluorinated polyethylene propylene (FEP) electret film that is metallised on one side with a small seismic mass attached to its centre and an arc‐shaped counter electrode. In principle, such an energy harvester is mechanically a mass‐spring system and electrically a self‐bias voltage variable capacitor and converts vibrational energy into electrical energy by electromechanical coupling. For an energy harvester sample with dimensions of 30 × 10 × 9 mm for which the last dimension denotes the initial depth of the centre of the harvester, the resonance frequency can be tuned from 17 to 70 Hz by stretching the length of the FEP film loaded with a given seismic mass of 0.06 g. For a seismic mass of 0.1 g, the harvester generated a power up to 797 μW to a matching resistor at its resonance frequency of 17 Hz at an acceleration of 1×g, where g is the gravity of the earth. Such energy harvesters are promising candidates for use in self‐powered electronic devices and wireless sensor network nodes.https://doi.org/10.1049/nde2.12007Earthelectretselectrochemical electrodesfinite element analysispolymerspower capacitors |
| spellingShingle | Xingchen Ma Xiaoya Yang Heinz von Seggern Ying Dai Pengfei He Gerhard M. Sessler Xiaoqing Zhang Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitor IET Nanodielectrics Earth electrets electrochemical electrodes finite element analysis polymers power capacitors |
| title | Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitor |
| title_full | Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitor |
| title_fullStr | Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitor |
| title_full_unstemmed | Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitor |
| title_short | Tuneable resonance frequency vibrational energy harvester with electret‐embedded variable capacitor |
| title_sort | tuneable resonance frequency vibrational energy harvester with electret embedded variable capacitor |
| topic | Earth electrets electrochemical electrodes finite element analysis polymers power capacitors |
| url | https://doi.org/10.1049/nde2.12007 |
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