A study on the spatial dependence of a MEMS electromagnetic transducer

dc.contributor.authorHoulihan, Ruth
dc.contributor.authorJackson, Nathan
dc.contributor.authorMathewson, Alan
dc.contributor.authorOlszewski, Oskar Zbigniew
dc.contributor.funderEnterprise Irelanden
dc.date.accessioned2019-04-15T08:57:05Z
dc.date.available2019-04-15T08:57:05Z
dc.date.issued2019-01-10
dc.date.updated2019-04-15T08:47:02Z
dc.description.abstractA MEMS, silicon-based device with a piezoelectric layer and an integrated magnet is presented for magnetic to electrical transduction. The cantilever structure can be configured either as an energy harvester to harvest power from an AC power line or as an AC current sensor. The positioning of the transducer with respect to the conductor is critical in both scenarios. For the energy scavenger, correct positioning is required to optimize the harvested power. For the current sensor, it is necessary to optimize the sensitivity of the sensor. This paper considers the effect of the relative position of the transducer with respect to the wire on the resulting electromagnetic forces and torques driving the device. It is shown in this paper that it is the net equivalent torque at the anchor that must be considered and not just the vertical component of the magnetic force as has been widely assumed heretofore. We show that for single wire conductors, the commonly made assumption that there exists two symmetrical power peaks at 45° either side of the wire is untrue, but rather that the net driving torque on one side of the wire can be more than an order of magnitude greater than the other.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHoulihan, R., Jackson, N., Mathewson, A. and Olszewski, O. Z. (2019) 'A Study on the Spatial Dependence of a MEMS Electromagnetic Transducer', Journal of Microelectromechanical Systems, 28(2), pp. 290-297. doi: 10.1109/JMEMS.2018.2887004en
dc.identifier.doi10.1109/JMEMS.2018.2887004en
dc.identifier.eissn1941-0158
dc.identifier.endpage297en
dc.identifier.issn1057-7157
dc.identifier.issued2en
dc.identifier.journaltitleJournal Of Microelectromechanical Systemsen
dc.identifier.startpage290en
dc.identifier.urihttps://hdl.handle.net/10468/7762
dc.identifier.volume28en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urihttps://ieeexplore.ieee.org/document/8607961
dc.rights© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectTorqueen
dc.subjectElectromagneticsen
dc.subjectWiresen
dc.subjectForceen
dc.subjectTransducersen
dc.subjectMagnetic separationen
dc.subjectConductorsen
dc.subjectEnergy harvestingen
dc.subjectPiezoelectric transducersen
dc.subjectElectromagnetic analysisen
dc.subjectElectromagnetic forcesen
dc.subjectMechanical vibrationsen
dc.titleA study on the spatial dependence of a MEMS electromagnetic transduceren
dc.typeArticle (peer-reviewed)en
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