Precise magnetic sensors

被引:42
作者
Vopálensky, M [1 ]
Ripka, P [1 ]
Platil, A [1 ]
机构
[1] Czech Tech Univ, Dept Measurement, Fac Elect Engn, Prague 16627 6, Czech Republic
关键词
magnetic sensors; magnetoresistors; magnetometers;
D O I
10.1016/S0924-4247(03)00129-8
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Can magnetoresistors replace fluxgate sensors in precise applications such as navigation and detection of metal objects? Anisotropic Magnetoresistors (AMRs) and Giant Magnetoresistors (GMRs) can reach 10 nT resolution. It is possible to improve their stability by ac techniques, but the electronics becomes complex and consumes more power. If size is not limited, fluxgate sensors are still the winners. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:38 / 42
页数:5
相关论文
共 10 条
[1]  
HAUSER H, 2001, P 46 ANN C MAGN MAGN, P292
[2]   AC-driven AMR and GMR magnetoresistors [J].
Ripka, P ;
Tondra, M ;
Stokes, J ;
Beech, R .
SENSORS AND ACTUATORS A-PHYSICAL, 1999, 76 (1-3) :225-230
[3]   New directions in fluxgate sensors [J].
Ripka, P .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 215 :735-739
[4]   Crossfield effect at fluxgate [J].
Ripka, P ;
Billingsley, SW .
SENSORS AND ACTUATORS A-PHYSICAL, 2000, 81 (1-3) :176-179
[5]  
Ripka P., 2001, MAGNETIC SENSORS MAG
[6]  
RIPKA P, 2002, ADM FLUXGATE SENSORS
[7]   Picotesla field sensor design using spin-dependent tunneling devices [J].
Tondra, M ;
Daughton, JM ;
Wang, DX ;
Beech, RS ;
Fink, A ;
Taylor, JA .
JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) :6688-6690
[8]  
Tumanski S., 2001, SENSORS SER
[9]  
VOPALENSKY M, 2002, EUROSENSORS, V16, P343
[10]  
VOPALENSKY M, 2002, EUROSENSORS, V16, P511