Results 181 to 190 of about 18,664 (232)

Very high GMI effect in commercial Vitrovac® amorphous ribbons

Sensors and Actuators A: Physical, 2003
In this work, we have studied the magnetic properties and magnetoimpedance behaviour in commercial Vitrovac ® 6025 low-magnetostriction ribbons as a function of the frequency and the intensity of the driving current. A very high value of the giant magnetoimpedance effect (GMI) ratio up to 420% and sensitivity of 57%/Oe have been achieved at a ...
M.L. Sánchez, G.V. Kurlyandskaya, B. Hernando, V.M. Prida, J.D. Santos, M. Tejedor   +5 more
openaire   +1 more source

Electromagnetic analysis of GMI effect in sandwich structured films

Journal of Shanghai University (English Edition), 2006
A model of giant magneto-impedance (GMI) effect in sandwich-structured film has been proposed based on the superposition principle of electromagnetic field. The expression of impedance is derived in the frames of electrodynamics and ferromagnetism. Electromagnetic interaction between the inner layer and outer layer is discussed. Numerical simulation is
Can-xing Huang, Long-ping Liu, Zhen-jie Zhao, Xue-ming Ma   +3 more
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Optimized GMI effect in electrodeposited CoP/Cu composite wires

Journal of Magnetism and Magnetic Materials, 2007
Abstract Influences of deposition time and electrolytic current density on the giant magnetoimpedance (GMI) effect of electrodeposited CoP/Cu composite wires were systematically investigated. The CoP magnetic layer was electrodeposited onto the Cu wire of 50 μm diameter.
Phan, MH, Peng, H-X, Tung, MT, Dung, NV, Nghi, NH   +4 more
openaire   +2 more sources

GMI effect in CuO coated Co-based amorphous ribbons

Journal of Alloys and Compounds, 2009
A Copper oxide (CuO) film has been grown on a surface of Co-based amorphous ribbon using chemical successive ionic layer adsorption and reaction technique, at room temperature and atmosphere pressure. The influence of coating and width of ribbon on giant magneto impedance have been investigated over a frequency range from 0.1 to 3 MHz and under a ...
DEREBAŞI, NAİM, PEKSÖZ, AHMET, Kaynak, Gokay, Irez, Gazi, Taysioglu, Ash Ayten, Kaya, Yunus   +5 more
openaire   +2 more sources

GMI Effect Automatic Test System Based on Network Analyzer

2018 37th Chinese Control Conference (CCC), 2018
The measuring instrument selects the network analyzer, combines the direct current source and the Helmholtz coil to form the GMI effect test system. PC program written in Lab View, network analyzer and DC current source is controlled by the host computer.
Zhi Zhao, Hengchang Rao, Fang Jin, Jinchao Wang, Lei Zhu, Junlei Song, Kaifeng Dong, Wenqin Mo   +7 more
openaire   +1 more source

GMI effect of amorphous microwires with enhanced magnetic softness

Journal of the Korean Physical Society, 2013
We present our results on studies of soft magnetic properties and GMI effect in thin microwires at elevated frequencies paying special attention to tailoring the GMI effect and achievement of high GMI ratio (ΔZ/Z), high magnetic field sensitivity (dZ/dH) with low hysteretic behavior.
A. Zhukov, M. Ipatov, A. Talaat, V. Zhukova, C. Garcia   +4 more
openaire   +1 more source

Frequency dependence of GMI effect in nanocrystalline Fe86Zr7B6Cu1 ribbons

Journal of Magnetism and Magnetic Materials, 1999
Abstract Giant magnetoimpedance effect (GMI), Δ Z / Z , has been studied in Fe 86 Zr 7 B 6 Cu 1 ribbons after heat treatment at 550°C and 600°C for 1 h (samples A and B respectively). Measurements were performed at frequencies, f , of the AC driving current ranging between 50 and 1400 kHz and under an axial magnetic field, H , up to 1440 A/m ...
P Aragoneses, D Holzer, H Sassik, A Zhukov, R Grössinger, J Gonzalez   +5 more
openaire   +1 more source

High-frequency GMI effect in glass-coated amorphous wires

Journal of Alloys and Compounds, 2009
Abstract The giant magneto-impedance (GMI) attracted growing attention especially owing to the large sensitivity of the electrical impedance to the DC magnetic field, when the relatively high-frequency electrical current flows along the magnetic conductor.
C. García, V. Zhukova, M. Ipatov, J. González, J.M. Blanco, A. Zhukov   +5 more
openaire   +1 more source

Magnetic Properties and GMI Effect of Ductile Amorphous Microwires

IEEE Transactions on Magnetics, 2012
We report on studies of the effect of annealing on magnetic properties and giant magneto-impedance (GMI) effect in Co69Fe4Cr4Si12B11 amorphous microwires with diameters of 90 and 55 μm produced by the Tailor-Ulitovski method allowing rapid quenching of composite glass coated microwires followed by glass removal techniques and warm drawing.
Zhukova, V.;Umnov, P. ; Molokanov, V. ; Shalygin, A.N. ; Talaat, A. ; Zhukov, A.   +6 more
openaire   +1 more source

The features of GMI effect in amorphous wires at microwaves

Physica A: Statistical Mechanics and its Applications, 1997
Abstract A new waveguide method is used to investigate high frequency GMI and magnetic permeability in Co-rich amorphous wire. The GMI spectra at microwaves are quite different from those measured at relatively low frequency. The amplitude of magnetic permeability decreases with increasing frequency, however, its relative change under external ...
A. Antonov, A. Granovsky, A. Lagar'kov, N. Perov, N. Usov, T. Furmanova   +5 more
openaire   +1 more source