Person: Algueta-Miguel, Jose M.
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Algueta-Miguel
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Jose M.
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IngenierĆa ElĆ©ctrica, ElectrĆ³nica y de ComunicaciĆ³n
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0000-0001-9323-4516
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8574
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Publication Open Access Monitoring structural transformations in metamagnetic shape memory alloys by non-contact GMI technology(IOP Publishing, 2023) Beato LĆ³pez, Juan JesĆŗs; La Roca, Paulo MatĆas; Algueta-Miguel, Jose M.; Garayo Urabayen, Eneko; SĆ”nchez-Alarcos GĆ³mez, Vicente; Recarte Callado, Vicente; GĆ³mez Polo, Cristina; PĆ©rez de LandazĆ”bal Berganzo, JosĆ© Ignacio; Ciencias; IngenierĆa ElĆ©ctrica, ElectrĆ³nica y de ComunicaciĆ³n; Institute for Advanced Materials and Mathematics - INAMAT2; Institute of Smart Cities - ISC; Zientziak; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenDifferent applications based on metamagnetic shape memory alloy (MSMA) require monitoring the evolution of the martensitic transformation (MT) to optimize the actuation mechanism. To avoid interaction with the active material, a non-contact technique would be ideal. Nevertheless, non-contact detection involves complex methods like diffraction, optical analysis, or electromagnetic technology. The present work demonstrates that the MT can be monitored without interaction with the active material using a low-cost technology based on the Giant Magnetoimpedance (GMI) effect. The GMI sensor is based on a (CoFe)SiB soft magnetic wire submitted to an alternating current and whose second harmonic voltage variation allows to detect changes in the strength of the stray magnetic fields linked to the metamagnetic phase transition. The sensor has been tested using the MT of a NiMnInCo MSMA. A specific application for environmental temperature control using the non-contact GMI sensor is proposed.Publication Open Access Magnetic binary encoding system based on 3D printing and GMI detection prototype(Elsevier, 2022) Beato LĆ³pez, Juan JesĆŗs; Algueta-Miguel, Jose M.; Galarreta RodrĆguez, Itziar; LĆ³pez Ortega, Alberto; Garayo Urabayen, Eneko; GĆ³mez Polo, Cristina; Aresti BartolomĆ©, Maite; Soria PicĆ³n, Eneko; PĆ©rez de LandazĆ”bal Berganzo, JosĆ© Ignacio; Ciencias; Zientziak; IngenierĆa ElĆ©ctrica, ElectrĆ³nica y de ComunicaciĆ³n; Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza; Institute for Advanced Materials and Mathematics - INAMAT2; Institute of Smart Cities - ISC; Gobierno de Navarra / Nafarroako Gobernua; Universidad PĆŗblica de Navarra / Nafarroako Unibertsitate PublikoaIn this work, the feasibility of a magnetic binary encoding system using 3D printing technology is analyzed. The study has a double interest, that is, the possibility of printing a 3D piece that contains the codified information and the development of a system for its decoding. For this purpose, magnetic nanoparticles (magnetite Fe3O4) were embedded in a polymeric matrix of Polylactic Acid (PLA) and Poly-Īµ-caprolactone (PCL). Similar to a conventional barcode, a rectangular piece with an alternating pattern of strips with absence (only polymer) and a 5 wt% of embedded magnetic nanoparticles was 3D printed employing the Fused Deposition Modelling tech- nique (FDM). The information was decoded by means of a Giant Magnetoimpedance (GMI) sensor-based pro- totype, by scanning the surface of the piece and measuring the changes in the magnetic field. As sensor nucleus, an amorphous soft magnetic wire of nominal composition (Co0.94 Fe0.06)72.5 Si12.5 B15 was employed. The decoding prototype incorporates a homemade electronic sensor interface that permits, at the time, the GMI sensor excitation and the subsequent signal conditioning to optimize its response. The output signal enables the detection of the magnetite nanoparticles and the magnetic decoding of the encoded information (ā1ā and ā0ā, presence or absence of the magnetic nanoparticles, respectively).Publication Open Access Non-linear GMI decoding in 3D printed magnetic encoded systems(Elsevier, 2023) Beato LĆ³pez, Juan JesĆŗs; Algueta-Miguel, Jose M.; Galarreta RodrĆguez, Itziar; Garayo Urabayen, Eneko; LĆ³pez Ortega, Alberto; GĆ³mez Polo, Cristina; PĆ©rez de LandazĆ”bal Berganzo, JosĆ© Ignacio; Ciencias; IngenierĆa ElĆ©ctrica, ElectrĆ³nica y de ComunicaciĆ³n; Institute for Advanced Materials and Mathematics - INAMAT2; Institute of Smart Cities - ISC; Zientziak; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Universidad PĆŗblica de Navarra / Nafarroako Unibertsitate PublikoaThe nonlinear giant magnetoimpedance (GMI) effect was explored as a highly sensitive sensing technology in 3D-printed magnetic encoded systems. Magnetic nanoparticles with low (magnetite, Fe3O4) and high (Co ferrite, Co0.7Fe2.3O4) magnetic remanence were embedded (10 wt%) in a polymeric matrix of Polylactic Acid (PLA) and Poly-Īµ-caprolactone (PCL) and extruded in magnetic filaments to be 3D printed by the Fused Deposition Modelling technique (FDM). Two different geometries were constructed namely, individual magnetic strips and fixed barcoded pieces. The stray magnetic fields generated by the magnetic nanoparticles were detected through the non-linear (second harmonic) GMI voltage using a soft magnetic CoFeSiB wire as the nucleus sensor. The decoding response was analyzed as a function of the magnetization remanence of the nanoparticles, the distance between the individual magnetic strips, and the position (height) of the GMI decoding sensor. It has been shown that modification of the net magnetization direction of each individual fixed strip within the barcode geometry is possible through the application of local external magnetic fields. This possibility improves the versatility of the 3D binary encoding system by adding an additional state (0 without nanoparticles, 1 or ā1 depending on the relative orientation of the net magnetization along the strips) during the codifying procedure.