DocumentCode
1278208
Title
Demagnetization factors of ringcores
Author
Clarke, D.B.
Author_Institution
Maritime Oper. Div., Aeronaut. & Mater. Res. Lab., Melbourne, Vic., Australia
Volume
35
Issue
6
fYear
1999
fDate
11/1/1999 12:00:00 AM
Firstpage
4440
Lastpage
4444
Abstract
The expression for the demagnetization of ringcores has evolved from the equation for the magnetic field inside simple-shaped objects whose magnetization is uniform. A modified expression that allows for the angular distribution of the magnetic field in the ringcore is developed from calculations for a infinite length tube. The modified expression is shown to provide a good fit to measured data. This modified equation is important when the product of the relative permeability and the demagnetization constant has a value around one or less
Keywords
demagnetisation; magnetic cores; angular distribution; demagnetization factor; magnetic field; magnetization; relative permeability; ringcore; Demagnetization; Equations; Geometry; Helium; Magnetic field measurement; Magnetic fields; Magnetization; Magnetometers; Permeability; Shape;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.809135
Filename
809135
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