Title :
Low-μ measurement using a special waveform of the magnetizing field
Author :
Woo, Byung-Chill ; Ryu, Kwon-sang ; Ihm, Young-Eon
Author_Institution :
Div. of Electromagnetic Metrol., Korea Res. Inst. of Stand. & Sci., Taejon, South Korea
fDate :
9/1/1999 12:00:00 AM
Abstract :
We have measured the DC permeability of feebly magnetic materials by a special waveform of magnetizing field. As the signal is processed in AC mode, the drift and input impedance loading effects of an analog integrator can be avoided. The rapid magnetization change enhances the induced signal. The measured permeability of stainless steels shows no dependence on the frequency of special waveform
Keywords :
ferromagnetic materials; magnetic permeability measurement; magnetisation; stainless steel; AC mode; DC permeability; feebly magnetic materials; input impedance loading effects; magnetizing field; rapid magnetization change; stainless steels; Coils; Eddy currents; Electromagnetic measurements; Impedance; Magnetic field measurement; Magnetic materials; Magnetic properties; Magnetization; Permeability measurement; Polarization;
Journal_Title :
Magnetics, IEEE Transactions on
