Precise magnetic sensors

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 10nT resolution. It is possible to improve their stability by ac techniques, but the electronics be...

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Bibliographic Details
Published in:Sensors and Actuators A: Physical 2003-09, Vol.106 (1-3), p.38-42
Main Authors: Vopálenský, Michal, Ripka, Pavel, Platil, Antonı́n
Format: Article
Language:English
Subjects:
Exact sciences and technology
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Magnetic components, instruments and techniques
Magnetic sensors
Magnetometers
Magnetometers for magnetic field measurements
Magnetoresistors
Physics
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
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Summary: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 10nT 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.
ISSN:0924-4247
1873-3069
DOI:10.1016/S0924-4247(03)00129-8