Design and construction of an electromechanical velocity modulator for Mössbauer spectroscopy

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dc.citation.journalTitleHyperfine Interactions
dc.contributor.authorVelasquez, A. A.
dc.contributor.authorCarmona, A.
dc.contributor.authorVelasquez, D.
dc.contributor.authorAngel, L.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ciencias Básicas
dc.contributor.researchgroupElectromagnetismo Aplicado (Gema)spa
dc.date.accessioned2021-03-23T21:38:59Z
dc.date.available2021-03-23T21:38:59Z
dc.date.issued2011-11-01
dc.description.abstractIn this paper we report the design, construction and characterization of an electromechanical velocity modulator for application in Mössbauer spectroscopy. The modulator was constructed with copper coils, Neodymium magnets, steel cores and polymeric membranes. The magnetic field in the driving and velocity sensing stages was analyzed by the finite element method, which showed a linear relation between the magnetic field in the region of motion of both coils and the position of the coils within the steel cores. The results obtained by computational simulation allowed us to optimize geometries and dimensions of the elements of the system. The modulator presented its first resonance frequency at 16. 7 Hz, this value was in good agreement with that predicted by a second order model, which showed a resonant frequency of 16. 8 Hz. The linearity of the velocity signal of the modulator was analyzed through an optical method, based on a Michelson-Morley interferometer, in which the modulator moved one of the mirrors. Results showed a satisfactory linearity of the velocity signal obtained in the sensing coil, whose correlation with a straight line was around 0. 99987 for a triangular reference waveform. © 2011 Springer Science+Business Media B.V.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1376
dc.identifier.doi10.1007/s10751-011-0339-z
dc.identifier.issn03043843spa
dc.identifier.issn15729540spa
dc.identifier.otherWOS;000313483100008
dc.identifier.otherSCOPUS;2-s2.0-81255160614
dc.identifier.urihttp://hdl.handle.net/10784/27120
dc.language.isoengeng
dc.publisherSPRINGER
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-81255160614&doi=10.1007%2fs10751-011-0339-z&partnerID=40&md5=1d082b1e3f599af4f5242466b76aab4b
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0304-3843
dc.sourceHyperfine Interactions
dc.subject.keywordFinite element methodeng
dc.subject.keywordMössbauer spectroscopyeng
dc.subject.keywordOptical calibrationeng
dc.subject.keywordVelocity modulatoreng
dc.titleDesign and construction of an electromechanical velocity modulator for Mössbauer spectroscopyeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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