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Your search keyword '"Keltouma Ait Aissa"' showing total 2 results
Start Over Author "Keltouma Ait Aissa" Publisher elsevier bv
2 results on '"Keltouma Ait Aissa"'

1. Experimental Study of Multilayer Piezo-magnetic SAW Delay Line for Magnetic Sensor

Author

Daniel Lacour, Keltouma Ait Aissa, Sébastien Petit-Watelot, Michel Hehn, Sami Hage-Ali, Abdelkrim Talbi, Omar Elmazria, and Meriem Elhosni

Subjects
Materials science, SAW, Magnetic SAW sensor, business.industry, General Medicine, Acoustic wave, Line (electrical engineering), Magnetic field, Layered structure, Condensed Matter::Materials Science, In plane, Acoustic wave propagation, Optics, Electronic engineering, Perpendicular, business, Layer (electronics), Engineering(all)
Abstract

This communication describes an experimental study of multilayer piezo-magnetic acoustic wave devices used as sensors of external magnetic fields applied in plane, parallel or perpendicular to the direction of the acoustic wave propagation direction. The considered device consists of a layered structure Mag/ZnO/IDT/LNY-128, Mag being the sensitive magnetoelastic layer. Two magnetoelastic films are investigated as sensitive layers: Ni and CoFeB. Their sensitivities to the magnetic field intensity and direction are measured and compared.

Published
2015
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2. FEM Modeling of Multilayer Piezo-magnetic Structure Based Surface Acoustic Wave Devices for Magnetic Sensor

Author

L. Bouvot, Frederic Sarry, Abdelkrim Talbi, Omar Elmazria, Meriem Elhosni, and Keltouma Ait Aissa

Subjects
SAW devices,Sensor,Piezo-Magnetic SAW sensor,FEM, Materials science, Magnetic structure, SAW, business.industry, Surface acoustic wave, Electrical engineering, chemistry.chemical_element, General Medicine, Finite element method, Magnetic field, Resonator, Nickel, Transducer, chemistry, Optoelectronics, Sensitivity (control systems), business, Engineering(all)
Abstract

This study describes the implementation of accurate and fully coupled physics models leading to investigate Surface Acoustic Wave (SAW) devices sensitivity to an extern applied magnetic field. The model was firstly validated using experimental published data of SAW resonator based on Quartz substrate and Nickel Interdigital Transducers (IDT). Original layered structures, Ni/ZnO/IDT/LiNbO3 and Ni/Al2O3/IDT/LiNbO3 were then investigated and optimized to enhance their sensitivity to magnetic field intensity. Results show that Ni/Al2O3/IDT/LiNbO3 exhibits a sensitivity of 10ppm/mT, 14 times higher than the structure with ZnO one.

Published
2014
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