Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer
Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer
dc.contributor.author | Ivo Maciel Nascimento | en |
dc.contributor.author | José Manuel Baptista | en |
dc.contributor.author | Pedro Jorge | en |
dc.contributor.author | Cruz,JL | en |
dc.contributor.author | Andres,MV | en |
dc.date.accessioned | 2018-01-25T11:28:30Z | |
dc.date.available | 2018-01-25T11:28:30Z | |
dc.date.issued | 2015 | en |
dc.description.abstract | An erbium doped (Er3+) fiber optic laser is proposed for magnetic field measurement. A pair of FBGs glued onto a magnetostrictive material (Terfenol-D rod) modulates the laser wavelength operation when subject to a static or a time dependent magnetic field. A passive interferometer is employed to measure the laser wavelength changes due to the applied magnetic field. A data acquisition hardware and a Lab VIEW software measure three phase-shifted signals at the output coupler of the interferometer and process them using two distinct demodulation algorithms. Results show that sensitivity to varying magnetic fields can be tuned by introducing a biasing magnetic field. A maximum error of 0.79% was found, for magnetic fields higher than 2.26 mT(RMS). | en |
dc.identifier.uri | http://repositorio.inesctec.pt/handle/123456789/7344 | |
dc.identifier.uri | http://dx.doi.org/10.1016/j.sna.2015.10.021 | en |
dc.language | eng | en |
dc.relation | 3565 | en |
dc.relation | 5458 | en |
dc.relation | 541 | en |
dc.rights | info:eu-repo/semantics/openAccess | en |
dc.title | Passive interferometric interrogation of a magnetic field sensor using an erbium doped fiber optic laser with magnetostrictive transducer | en |
dc.type | article | en |
dc.type | Publication | en |
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