Results 151 to 160 of about 798 (204)

Giant magnetoimpedance strip and coil sensors

Sensors and Actuators A: Physical, 2001
We present noticeable values of giant magnetoimpedance on a cobalt-rich amorphous alloy, together with a new approach to giant magnetoimpedance devices of reduced size. Values as high as 260% of impedance variation as a function of the applied magnetic field are obtained with the samples in the usual form of long ribbons.
G V Kurlyandskaya, J M Barandiaran, E Kisker   +2 more
exaly   +2 more sources

An integrated giant magnetoimpedance biosensor for detection of biomarker

Biosensors and Bioelectronics, 2014
A Dynabeads-labeled magnetic immunoassay (MIA) has been developed by using an integrated giant magnetoimpedance (GMI) biosensor for the detection of alpha-fetoprotein (AFP). The GMI biosensor (Cr/Cu/NiFe/Cu/NiFe/Al2O3/Cr/Au films) integrated magnetic sensing elements and a biomolecular immunoplatform.
Tao, Wang, Zhen, Yang, Chong, Lei, Jian, Lei, Yong, Zhou   +4 more
exaly   +3 more sources

Giant magnetoimpedance in a MnZn ferrite

Journal of Magnetism and Magnetic Materials, 2006
Abstract Giant magnetoimpedance (GMI) effect has been observed in a MnZn ferrite at room temperature. The magnetoimpedance Δ Z / Z 0 reaches −61.2% at a frequency f = 4 MHz under a field H = 3 kOe . The GMI in MnZn ferrite is connected not only with the field induced permeability variation, but also ...
Jifan Hu, Hongwei Qin, Guanquan Qi, Minhua Jiang   +3 more
openaire   +1 more source

Non-linear giant magnetoimpedance

Journal of Magnetism and Magnetic Materials, 2002
Abstract Very high and sensitive magnetoimpedance effect has been studied in FeCoNi magnetic tubes electroplated onto CuBe wire for the frequency of 1 MHz order. Strong non-linear effects have been observed. The high harmonics generation was investigated.
G.V. Kurlyandskaya, E. Kisker, H. Yakabchuk, N.G. Bebenin   +3 more
openaire   +1 more source

Giant magnetoimpedance in silicon steels

Journal of Magnetism and Magnetic Materials, 2004
Abstract Giant magnetoimpedance (GMI) has been measured in pieces of silicon steel (4.5% Si) as functions of axial static magnetic field, sample width, frequency and magnitude of the AC driving current. The samples, 0.5×35 mm with widths ranging from 0.122 to 1.064 mm, were cut from sheets of commercial transformer cores. The impedance decreased with
P. Jantaratana, C. Sirisathitkul
openaire   +1 more source

Effect of nanocrystallization on Giant magnetoimpedance effect of microwires

2013 Seventh International Conference on Sensing Technology (ICST), 2013
We studied GMI effect and magnetic properties of Finemet-type FeCuNbSiB microwires. We observed that GMI magnetic field and frequency dependences and magnetic softness of composite microwires produced by the Taylor-Ulitovski technique can be tailored either controlling magnetoelastic anisotropy of as-prepared FeCuNbSiB microwires or controlling their ...
Ahmed Talaat, Valentina Zhukova, Mihail Ipatov, Lorena Gonzalez-Legarreta, Blanca Hernando, Arcady Zhukov   +5 more
openaire   +1 more source

Giant magnetoimpedance in CoP electrodeposited microtubes

Journal of Materials Research, 2000
Co90P10 amorphous microtubes with thickness ranging from 2 to 19 μm were electrodeposited onto Cu wire substrates. Samples exhibit radial magnetic anisotropy as deduced from hysteresis loops and magnetic force microscopy imaging. These microtubes show quite noticeable giant magnetoimpedance effect (GMI) with amplitude depending on layer thickness and ...
J. P. Sinnecker, J. M. García, A. Asenjo, M. Vázquez, A. García-Arribas   +4 more
openaire   +1 more source

Giant Magnetoimpedance in CoP Electrodeposited Films

Key Engineering Materials, 2014
In the last few years there has been increasing interest in CoP electrodeposited alloys due to their excellent properties as soft magnetic materials (low coercivity and high permeability) in addition to the giant magnetoimpedance that they exhibit. More recently magneto-impedance (MI) effect has also been reported on thin films obtained by sputtering ...
Carlos Morón, Enrique Tremps, Alfonso Garcia, Jose Maria Fuster, Jose Andrés Somolinos   +4 more
openaire   +1 more source

Giant Magnetoimpedance Sensors and Their Applications

2016
Since GMI changes as a function of external dc magnetic field or applied dc/ac current, it is possible to design and produce GMI-based sensors that can measure either magnetic fields or dc/ac currents. GMI also changes sensitively with applied stress, and this provides a new opportunity to develop stress sensors.
Hua-Xin Peng, Faxiang Qin, Manh-Huong Phan   +2 more
openaire   +1 more source

Advances in Giant Magnetoimpedance of Materials

2015
Abstract The giant magnetoimpedance (GMI) effect consisting of the large change of both real and imaginary parts of the impedance upon the application of static magnetic field has attracted recent few years' considerable attention. An updated review on GMI was presented.
A. Zhukov, M. Ipatov, V. Zhukova
openaire   +1 more source