One-dimensional AGMI sensor with Co66Fe4Si15B15 ribbon as sensing element

被引：16

作者：

Kollu, P. ^{[1
]}

Jin, L. ^{[2
]}

Kim, K. W. ^{[2
]}

Yoon, S. S. ^{[3
]}

Kim, C. G. ^{[1
]}

机构：

[1] Chungnam Natl Univ, Dept Mat Sci & Engn, Taejon 305764, South Korea

[2] Chungnam Natl Univ, ReCAMM, Taejon 305764, South Korea

[3] Andong Natl Univ, Dept Phys, Andong 760749, South Korea

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2008年 / 90卷 / 03期

关键词：

D O I：

10.1007/s00339-007-4317-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel asymmetric giant magneto impedance (AGMI) sensor was developed and the performance of the sensor was carefully studied. This one dimensional sensor can be further developed as a two-dimensional compass that can be used for navigational purposes. We used commercial Metglas 2714A ribbon. The sensor uses Co66Fe4Si15B15 ribbon as a sensing element. The results showed for high sensitivity and resolution. The GMI sensor consists of a crystal oscillator voltage to current converter for providing the current to the sample, a differential amplifier, successive amplifier stages, multiplier, and cascaded low-pass filters. The observed sensitivity was 25 V/Oe. Angle sensitivity was found to be 2 mV/degree. Our sensor showed excellent linearity when compared with previous sensors [13, 14]. These sensors require dc bias coils and two sensor elements to attain good linearity.

引用

页码：533 / 536

页数：4

共 16 条

[1] SENSITIVE FIELD-DEPENDENT AND FREQUENCY-DEPENDENT IMPEDANCE SPECTRA OF AMORPHOUS FECOSIB WIRE AND RIBBON (INVITED) [J].