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Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer

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Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer

dc.contributor.author	Nascimento, I. M.
dc.contributor.author	Baptista, M. J. M.
dc.contributor.author	Jorge, P. A. S.
dc.contributor.author	Cruz Muñoz, José Luis
dc.contributor.author	Andrés, Miguel V.
dc.date.accessioned	2022-03-24T12:27:35Z
dc.date.available	2022-03-24T12:27:35Z
dc.date.issued	2015
dc.identifier.uri	https://hdl.handle.net/10550/82028
dc.description.abstract	An erbium doped (Er3+) fiber optic laser is proposed for magnetic field measurement. A pair of FBGsglued onto a magnetostrictive material (Terfenol-D rod) modulates the laser wavelength operation whensubject to a static or a time dependent magnetic field. A passive interferometer is employed to measure thelaser wavelength changes due to the applied magnetic field. A data acquisition hardware and a LabVIEWsoftware measure three phase-shifted signals at the output coupler of the interferometer and processthem using two distinct demodulation algorithms. Results show that sensitivity to varying magneticfields can be tuned by introducing a biasing magnetic field. A maximum error of 0.79% was found, formagnetic fields higher than 2.26 mT-RMS.
dc.language.iso	eng
dc.relation.ispartof	Sensors and Actuators A-Physical, 2015, vol. 235, p. 227-233
dc.source	Nascimento, I. M. Baptista, M. J. M. Jorge, P. A. S. Cruz Muñoz, José Luis Andrés, Miguel V. 2015 Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer Sensors and Actuators A-Physical 235 227 233
dc.subject	Física
dc.title	Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer
dc.type	journal article	es_ES
dc.date.updated	2022-03-24T12:27:36Z
dc.identifier.doi	https://doi.org/10.1016/j.sna.2015.10.021
dc.identifier.idgrec	111014
dc.rights.accessRights	open access	es_ES