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Fe-Rich Wires as Elements for Torsion Sensors Based in Torsion Impedance Effect

dc.contributor.authorSánchez Rodríguez, María Luisa 
dc.contributor.authorOlivera Cabo, Jesús 
dc.contributor.authorSantos Rodríguez, Jesús Daniel 
dc.contributor.authorÁlvarez Alonso, Pablo 
dc.contributor.authorPérez Fernández, María José 
dc.contributor.authorGorría Korres, Pedro 
dc.contributor.authorHernando Grande, Blanca
dc.identifier.citationSensor Letters, 5(1), p. 89-92(2007); doi:10.1166/sl.2007.070spa
dc.description.abstractFe-rich amorphous wires with positive magnetostriction coefficient, employed in the as-quenched state and after being submitted to current annealing treatments with and without an applied torsional stress, show large impedance responses to applied tensional and torsional stresses. This high response can be employed to develop torsion sensitive elements in technological devices. The resistive and reactive components of the impedance were studied for as-quenched and current annealed Fe73.5Si13.5B9Cu1Nb3 wires as a function of applied torsional stresses, i.e., the torsion impedance (TI) effect. The real part of the impedance showed maxima at finite (non-zero) applied torsion for both twist and untwist annealed wires. Large responses, up to 180% for the reactive component of the impedance were obtained at a 100 kHz drive current frequency for the as-quenched wire demonstrating the possibility of using these wires based on the TI effect as a torsion sensor. Results can be explained taking into account the influence of the annealing treatment on the domain structure, magnetostriction, and magnetic parameters of the amorphous
dc.format.extentp. 89-92spa
dc.publisherAmerican Scientific Publishers
dc.relation.ispartofSensor Lettersspa
dc.rights(c) Sensor Letters
dc.subjectAmorphous Wiresspa
dc.subjectTorsion Inpedancespa
dc.subjectTorsion Sensorsspa
dc.titleFe-Rich Wires as Elements for Torsion Sensors Based in Torsion Impedance Effectspa

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