Title :
A new planar-type high-frequency current detector utilizing the skin effect in soft magnetic materials
Author :
Yamaguchi, M. ; Matsuki, H. ; Arai, K.I. ; Murakami, K.
Author_Institution :
Res. Inst. of Electr. Comm., Tohoku Univ., Sendai, Japan
fDate :
9/1/1989 12:00:00 AM
Abstract :
A novel detector has been developed which can sense the amplitude and phase of a sinusoidal high-frequency current. The operating principle is the control of the skin depth for conduction in the magnetic material. A pair of Co-base nonmagnetostrictive amorphous plates 18.8 mm long, 43 mm wide, and 23 μm thick can sense the amplitude of a 7-MHz current with good linearity. The results are useful for developing micromagnetic devices
Keywords :
cobalt alloys; electric current measurement; electric sensing devices; magnetic properties of amorphous substances; phase measurement; skin effect; 18.8 mm; 23 micron; 43 mm; 7 MHz; high-frequency current detector; linearity; micromagnetic devices; nonmagnetostrictive amorphous plates; operating principle; phase; skin depth; skin effect; soft magnetic materials; Amorphous magnetic materials; Current density; Current distribution; Detectors; Frequency; Magnetic devices; Magnetostriction; Phase detection; Skin effect; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
