|Table of Contents|

Fe-based Amorphous Ribbon Weak Magnetic Sensor Based on Longitudinal Excitation

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2011年03期
Page:
338-342
Research Field:
Publishing date:

Info

Title:
Fe-based Amorphous Ribbon Weak Magnetic Sensor Based on Longitudinal Excitation
Author(s):
YU Ge-liangBU Xiong-zhuSHI Xiao-junXIONG Chang-bing
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
longitudinal excitation Fe-based amorphous ribbons weak magnetic sensors giant magnetic impedance
PACS:
TP212.13
DOI:
-
Abstract:
To research the weak magnetic sensor with high performance,the Fe-based amorphous ribbon Fe78Si9B13 is made to have high giant magneto impedance(GMI)effect by longitudinal excitation.In the circuit design of the sensor,the pulse excitation current circuit is made up of the RC-invertors oscillating circuit and a switch transistor;the signal conditioning circuit is composed of a peak-value detector,a passive low-pass filter circuit and a differential amplifier AD620;the feedback circuit is composed of a V/I converting circuit based on a dual operational amplifiers.The output of the weak magnetic sensor based on the GMI effect is experimentally calibrated and analyzed on data.The test results show:in the magnetic field from-210μT to 210μT,the sensitivity is 5.7 mV/μT,the linearity is 0.87%,the repeatability is 0.63% and the hysteresis is ±0.36%,which attains the test requirement of a weak magnetic field.

References:

[1] Cai C M,Yamamoto M,Aoyama H,et al. 3-axis amorphous wire type giant magneto-impedance sensors[A]. Magnetics Conference, 2005 INTERMAG Asia Digests of the IEEE International[C]. Nagoya Congress Center, Nagoya, Japan: IEEE, 2005: 407 - 408.
[2] Cai C M,Usami K,Hayashi M, et al. Frequency-modulation- type MI sensor using amorphous wire and CMOS inverter multivibrator[J]. IEEE Transactions on Magnetics, 2004, 40( 1) : 161 - 163.
[3] Nakamura Y,Uchiyama T,Cai C M,et al. PWM-type amorphous wire CMOS IC magneto-impedance sensor having high-temperature stability[J]. Magnetics, IEEE Transactions on, 2008, 44( 11) : 3981 - 3984.
[4] 郭成锐,江建军,邸永江. 基于铁基非晶丝巨磁阻抗效 应的新型磁传感器[J]. 电子质量, 2006,3 ( 10) : 5 -7.
[5] 郑金菊余孙. 一种新型的磁敏传感器[J]. 仪器仪 表学报, 2005, 26( 8) : 308 - 309.
[6] Chiriac H,Pletea M,Hristoforou E. Fe-based amorphous thin film as a magnetoelastic sensor material[J]. Sensors and Actuators A: Physical,2000,81 ( 1 /3 ) : 166 - 169.
[7] Zhao Z J,Bendjaballah F,Yang X L, et al. Longitu-dinally driven magneto-impedance effect in annealed Febased nanocrystalline powder materials[J]. Journal of Magnetism and Magnetic Materials,2002,246 ( 1 /2) : 62 - 66.
[8] 杨晓红,郑金菊,任俊华,等. 不同驱动方法下铁基 纳米晶丝的GMI 研究[J]. 金华职业技术学院学 报, 2006,6 ( 6) : 1 - 5.
[9] 赵英俊,杨克冲,杨叔子. 非晶态合金脉冲感应型磁 场传感器[J]. 仪表技术与传感器,1993,5 ( 5) : 4 - 6.
[10] Zhukov A P,Vázquez M,Velázquez J,et al. The remagnetization process in thin and ultra-thin Fe-rich amorphous wires[J]. Journal of Magnetism and Magnetic Materials, 1995, 151( 1 /2) : 132 - 138.
[11] 赵湛,鲍丙豪,蒋峰,等. 脉冲电流退火的钴基非晶 带环巨磁阻抗效应[J]. 磁性材料及器件,2005, 36( 5) : 25 - 28.
[12] Yu Geliang,Bu Xiongzhu,Xiang Chao, et al. Design of a GMI magnetic sensor based on the longitudinal excitation [J]. Sensors and Actuators A: Physical,2010, 161( 12) : 72 - 77.

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Last Update: 2012-06-30