A combination of a vibrational electromagnetic energy harvester and a giant magnetoimpedance (GMI) sensor

Beato López, Juan Jesús; Royo Silvestre, Isaac; Algueta-Miguel, Jose M.; Gómez Polo, Cristina

A combination of a vibrational electromagnetic energy harvester and a giant magnetoimpedance (GMI) sensor

dc.contributor.author	Beato López, Juan Jesús
dc.contributor.author	Royo Silvestre, Isaac
dc.contributor.author	Algueta-Miguel, Jose M.
dc.contributor.author	Gómez Polo, Cristina
dc.contributor.department	Zientziak	eu
dc.contributor.department	Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren	eu
dc.contributor.department	Institute for Advanced Materials and Mathematics - INAMAT2	en
dc.contributor.department	Institute of Smart Cities - ISC	en
dc.contributor.department	Ciencias	es_ES
dc.contributor.department	Ingeniería Eléctrica, Electrónica y de Comunicación	es_ES
dc.contributor.funder	Gobierno de Navarra / Nafarroako Gobernua	es
dc.date.accessioned	2020-07-06T08:41:21Z
dc.date.available	2020-07-06T08:41:21Z
dc.date.issued	2020
dc.description.abstract	An energy harvesting device combined with a giant magnetoimpedance (GMI) sensor is presented to analyze low frequency vibrating systems. An electromagnetic harvester based on magnetic levitation is proposed for the electric power generation. The device is composed of two fixed permanent magnets at both ends of a cylindrical frame, a levitating magnet acting as inertial mass and a pick-up coil to collect the induced electromotive force. At the resonance frequency (10 Hz) a maximum electrical power of 1.4 mW at 0.5 g is generated. Moreover, an amorphous wire was employed as sensor nucleus for the design of a linear accelerometer prototype. The sensor is based on the GMI effect where the impedance changes occur as a consequence of the variations of the effective magnetic field due to an oscillating magnetic element. As a result of the magnet’s periodic motion, an amplitude modulated signal (AM) was obtained, its amplitude being proportional to mechanical vibration amplitude (or acceleration). The sensor’s response was examined for a simple ferrite magnet under vibration and compared with that obtained for the vibrational energy harvester. As a result of the small amplitudes of vibration, a linear sensor response was obtained that could be employed in the design of low cost and simple accelerometers.	en
dc.description.sponsorship	This work has been funded by Gobierno de Navarra, Dpto de Desarrollo Económico, within the project 'Dispositivos de recolección de energía vibracional basados en levitación magnética.'	en
dc.format.extent	17 p.
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.3390/s20071873
dc.identifier.issn	1424-8220
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/37337
dc.language.iso	eng	en
dc.publisher	MDPI	en
dc.relation.ispartof	Sensors, 2020, 20(7), 1873	en
dc.relation.publisherversion	https://doi.org/10.3390/s20071873
dc.rights	© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.subject	Vibrational energy harvester	en
dc.subject	GMI effect	en
dc.subject	Accelerometer	en
dc.subject	Low frequency vibrating systems	en
dc.subject	Amplitude	en
dc.title	A combination of a vibrational electromagnetic energy harvester and a giant magnetoimpedance (GMI) sensor	en
dc.type	info:eu-repo/semantics/article
dc.type.version	info:eu-repo/semantics/publishedVersion
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