Frequency adjustable MEMS vibration energy harvester

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dc.contributor.author Podder, Pranay
dc.contributor.author Constantinou, Peter
dc.contributor.author Amann, Andreas
dc.contributor.author Roy, Saibal
dc.date.accessioned 2016-11-22T16:10:25Z
dc.date.available 2016-11-22T16:10:25Z
dc.date.issued 2016-11
dc.identifier.citation Podder, P. Constantinou, P., Amann, A, and Roy, S. (2016) 'Frequency adjustable MEMS vibration energy harvester', Journal of Physics: Conference Series, 757, 012037 (6pp). doi: 10.1088/1742-6596/757/1/012037 en
dc.identifier.volume 757 en
dc.identifier.startpage 012037-1 en
dc.identifier.endpage 012037-6 en
dc.identifier.issn 1742-6588
dc.identifier.uri http://hdl.handle.net/10468/3305
dc.identifier.doi 10.1088/1742-6596/757/1/012037
dc.description.abstract Ambient mechanical vibrations offer an attractive solution for powering the wireless sensor nodes of the emerging "Internet-of-Things". However, the wide-ranging variability of the ambient vibration frequencies pose a significant challenge to the efficient transduction of vibration into usable electrical energy. This work reports the development of a MEMS electromagnetic vibration energy harvester where the resonance frequency of the oscillator can be adjusted or tuned to adapt to the ambient vibrational frequency. Micro-fabricated silicon spring and double layer planar micro-coils along with sintered NdFeB micro-magnets are used to construct the electromagnetic transduction mechanism. Furthermore, another NdFeB magnet is adjustably assembled to induce variable magnetic interaction with the transducing magnet, leading to significant change in the spring stiffness and resonance frequency. Finite element analysis and numerical simulations exhibit substantial frequency tuning range (25% of natural resonance frequency) by appropriate adjustment of the repulsive magnetic interaction between the tuning and transducing magnet pair. This demonstrated method of frequency adjustment or tuning have potential applications in other MEMS vibration energy harvesters and micromechanical oscillators. en
dc.description.sponsorship Science Foundation Ireland (SFI Principal Investigator (PI)project on ‘Vibrational Energy Harvesting’ grant no. SFI-11/PI/1201.) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher IOP Publishing en
dc.rights © 2016, The Authors. Published under licence in Journal of Physics: Conference Series by IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. en
dc.subject Micro-mechanical oscillators en
dc.subject Internet-of-Things en
dc.subject MEMS vibration energy harvesters en
dc.subject Electrical energy en
dc.title Frequency adjustable MEMS vibration energy harvester en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Saibal Roy, Tyndall Microsystems, University College Cork, Cork, Ireland. +353-21-490-3000 Email: saibal.roy@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2016-11-22T14:50:52Z
dc.description.version Published Version en
dc.internal.rssid 372855413
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of Physics: Conference Series en
dc.internal.copyrightchecked !!CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress saibal.roy@tyndall.ie en


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