Browsing by UPNA Author "Beato López, Juan Jesús"
Now showing items 1-11 of 11
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A combination of a vibrational electromagnetic energy harvester and a giant magnetoimpedance (GMI) sensor
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 ... -
Desarrollo de sensores basados en el efecto de magnetoimpedancia gigante empleando materiales magnéticos amorfos obtenidos mediante técnicas de enfriamiento ultrarrápido
El presente trabajo tiene un claro carácter práctico y aplicado. El principal objetivo es el desarrollo de sensores basados en el efecto de magnetoimpedancia gigante (o efecto GMI) empleando materiales magnéticos amorfos ... -
Effect of Cu substitution on the magnetic and magnetic induction heating response of CdFe₂O₄ spinel ferrite
(Elsevier, 2020) Artículo / ArtikuluaIn this work, a comparative study of the effect of Cu on the structural, magnetic and magnetic induction heating response in CdFe2O4 spinel is presented. The ceramic nanoparticles (Cu1−xCdxFe2O4; 0 ≤ x ≤ 1) were synthesized ... -
Giant direct and inverse magnetocaloric effect linked to the same forward martensitic transformation
Metamagnetic shape memory alloys have aroused considerable attraction as potential magnetic refrigerants due to the large inverse magnetocaloric effect associated to the magnetic-field-induction of a reverse martensitic ... -
Giant stress impedance magnetoelastic sensors employing soft magnetic amorphous ribbons
Soft magnetic amorphous alloys obtained via rapid quenching techniques are widely employed in different technological fields such as magnetic field detection, bio labeling, non-contact positioning, etc. Among them, ... -
Interferometric vs wavelength selective optical fiber sensors for cryogenic temperature measurements
In this work, a preliminary study of the behavior of two different interferometric fiber optic sensors and two different wavelength selective fiber optic sensors is performed. A photonic cristal fiber Fabry-Pérot interferometer, ... -
Magnetocaloric effect enhancement driven by intrinsic defects in a Ni45Co5Mn35Sn15 alloy
(Elsevier, 2019) Artículo / ArtikuluaThe influence of mechanically-induced defects on the magnetostructural properties is analyzed in a Ni-Co-Mn-Sn alloy subjected to soft milling and subsequent annealing treatments. It is found that, opposite to what occurs ... -
Micrometric non-contact position magnetoimpedance sensor
In this work a sensitive micrometric non-contact position sensor based on the Giant MagnetoImpedance effect (GMI) is analyzed. A nearly zero magnetostrictive CoFeSiBCr wire was employed as sensor nucleus. The sensing ... -
Study of optical fiber sensors for cryogenic temperature measurements
In this work, the performance of five different fiber optic sensors at cryogenic temperatures has been analyzed. A photonic crystal fiber Fabry-Pérot interferometer, two Sagnac interferometers, a commercial fiber Bragg ... -
Tailoring the structural and magnetic properties of Co-Zn nanosized ferrites for hyperthermia applications
A comparative study of the magnetic properties (magnetic moment, magnetocrystalline anisotropy) and hyperthermia response in Co-Zn spinel nanoparticles is presented. The CoxZn1-xFe2O4 nanoparticles (x = 1, 0.5, 0.4, 0.3, ... -
Thrust actuator with passive restoration force for wide gap magnetic bearings
(Elsevier, 2019) Artículo / ArtikuluaActive thrust magnetic bearings provide an axial force to balance the moving parts of machines. However, most devices produce null or unbalancing passive forces. Furthermore, reported designs usually feature very small ...