Title :
Demagnetizing factors for cylinders
Author :
Chen, Du-Xing ; Brug, James A. ; Goldfarb, Ronald B.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
7/1/1991 12:00:00 AM
Abstract :
Fluxmetric (ballistic) and magnetometric demagnetizing factors Nf and Nm for cylinders as functions of susceptibility chi and the ratio gamma of length to diameter have been evaluated. Using a one-dimensional model when gamma >or=10, Nf was calculated for -1m was calculated for chi to infinity . Using a two-dimensional model when 0.01m and Nf were calculated for -1f and Nm were computed exactly using inductance formulas.
Keywords :
demagnetisation; magnetic susceptibility; magnetometers; magnetostatics; ballistic demagnetising factor; cylinders; fluxmetric demagnetising factor; inductance formulas; magnetometer measurements; magnetometric demagnetizing factors; one-dimensional model; saturated ferromagnetic materials; superconductors; susceptibility; two-dimensional model; weakly magnetic materials; Demagnetization; Ellipsoids; H infinity control; Helium; Inductance; Magnetic field measurement; Magnetic materials; Magnetic susceptibility; Magnetometers; Saturation magnetization; Superconducting magnets; Superconductivity;
Journal_Title :
Magnetics, IEEE Transactions on
