研究了LC共振型复合结构丝的巨磁阻抗效应并作了机理分析.用化学镀的方法制备了BeCu/绝缘层/NiCoP复合结构丝,由其自身构成串联LCR共振回路.该LC共振型复合结构丝的巨磁阻抗效应比一般型大幅度增加,长度为11cm的复合结构丝在频率f=24MHz时由一般型的54.7%增加到254.3%,增加了4.65倍.共振频率随复合结构丝长度的增加而减小.巨磁阻抗效应在共振频率附近迅速增强,而远离该频率则明显减小,具有很好的频率选择性.
参考文献
| [1] | Mohri K.;Kohsawa T. .Magneto-inductive effect (MI effect) in amorphous wires[J].IEEE Transactions on Magnetics,1992(5):3150-3152. |
| [2] | Knobel M.;Pirota KR. .Giant magnetoimpedance: concepts and recent progress[J].Journal of Magnetism and Magnetic Materials,2002(1):33-40. |
| [3] | Z.J. Zhao;Y.Z. Fang;J.Z. Ruan .Large frequency shift in Fe-based nanocrystalline powder cores[J].Journal of Magnetism and Magnetic Materials,2004(1/2):82-86. |
| [4] | Zhao Zhenjie;Ruan Jianzhong;Yang Xielong.Magneto-resonance frequency shift study of re-based nanoerystalline powder cores[J].Sensors and Actuators A:Physical,2005(117):252-255. |
| [5] | Yong-Seok Kim;Seong-Cho Yu;Jeong-Bong Lee .A new class of LC-resonator for micro-magnetic sensor applicati[J].Journal of Magnetism and Magnetic Materials,2006(1):117-121. |
| [6] | Raposo V.;Vazquez M.;Flores AG.;Zazo M.;Iniguez JI. .Giant magnetoimpedance effect enhancement by circuit matching[J].Sensors and Actuators, A. Physical,2003(1/3):329-332. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%