FeCoNi Electroplated Wire Based Magnetoimpedance Sensitive Element

被引：0
|
作者：
Angeles Cerdeira, M. [1 ]
Jantaratana, Pongsakorn [2 ]
Vas'kovskiy, Vladimir O. [3 ]
Kurlyandskaya, Galina V. [3 ,4 ]
机构：
[1] Univ Oviedo, Dept Phys, Oviedo 33007, Spain
[2] Kasetsart Univ, Dept Phys, Bangkok 10900, Thailand
[3] Ural Fed Univ, Dept Magnetism & Magnet Nanomat, Ekaterinburg 620083, Russia
[4] Univ Basque Country, UPV EBH, Dept Elect & Elect, Leioa 48940, Spain
来源：
SENSOR LETTERS | 2013年 / 11卷 / 01期
关键词：
Electroplated Wire; Magnetic Field Sensor; Magnetoimpedance; GIANT MAGNETO-IMPEDANCE;
D O I：
10.1166/sl.2013.2776
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The CuBe/Fe20Co6Ni74 composite wires for magneto-impedance (MI) sensors were prepared by electrodeposition of 1 mu m thick FeCoNi magnetic layer onto a non-magnetic substrate. Longitudinal magnetic anisotropy was induced by 1 hour annealing in a dc magnetic field of 20 Oe at a temperature of 320 degrees C Angular dependencies of MI were measured in a frequency range of 0.6 to 1 MHz for driving current intensities of 2.5 to 20 mA. Very high longitudinal MI of the order of 400% was observed at a frequency of 1 MHz. The highest value of the sensitivity of 520%/Oe with respect to applied field was observed for the active resistance Delta R/R component. Very high and linear sensitivities of 0.0023 Omega/degrees, 0.023 Omega/degrees, 0.05 Omega/degrees were observed for the fields of 1.5, 3.0 and 3.5 Oe respectively for low angles, where MI sensors with flat geometry are less effective.
引用
收藏
页码：180 / 183
页数：4
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