DocumentCode
1393076
Title
Dynamic calculation of the responsivity of monodomain fluxgate magnetometers
Author
Deak, J.G. ; Koch, R.H. ; Guthmiller, G.E. ; Fontana, R.E., Jr.
Author_Institution
IBM Storage Syst. Div., San Jose, CA, USA
Volume
36
Issue
4
fYear
2000
fDate
7/1/2000 12:00:00 AM
Firstpage
2052
Lastpage
2056
Abstract
A model is presented describing the dynamic response of a single-domain fluxgate magnetometer over a wide range of operating conditions in terms of a single measurement of a hysteresis loop or the permeability of the fluxgate´s ferromagnetic core. The model is based on the Landau-Lifshitz-Gilbert equation, which describes the dynamics of a coherently rotating ferromagnet. Measurements of the response of a permalloy thin-film fluxgate and a molybdenum-permalloy tube fluxgate demonstrate the accuracy and limitations of the model
Keywords
fluxgate magnetometers; Landau-Lifshitz-Gilbert equation; MoNiFe; NiFe; coherent rotation; dynamic model; ferromagnetic core; hysteresis loop; molybdenum-permalloy tube fluxgate; monodomain fluxgate magnetometer; permalloy thin-film fluxgate; permeability; responsivity; Coils; Equations; Magnetic cores; Magnetic field measurement; Magnetic flux; Magnetic materials; Magnetic noise; Magnetic sensors; Magnetometers; Transistors;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.875331
Filename
875331
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