Title :
Sensitive magneto-inductive effect in amorphous wires using high-pass filter and micro field sensor
Author :
Bushida, K. ; Mohri, K.
Author_Institution :
R&D Center, UNITIKA Ltd., Kyoto, Japan
fDate :
11/1/1994 12:00:00 AM
Abstract :
A highly sensitive magneto-inductive effect was found in amorphous wires using a high-pass filter observing the variation of the frequency spectrum of an induced voltage waveform between both ends of the wire before and after applying an external field. A sensitive micro sized magnetic field sensor was constructed using a pair of the magneto-inductive elements of 3 mm length applying dc bias fields opposite to each other
Keywords :
amorphous magnetic materials; electromagnetic induction; high-pass filters; magnetic field measurement; magnetic sensors; magnetostrictive devices; 945 kHz; DC bias fields; amorphous wires; external field; frequency spectrum; high-pass filter; induced voltage waveform; magneto-inductive elements; micro field sensor; sensitive magneto-inductive effect; Amorphous magnetic materials; Amorphous materials; Filters; Frequency; Magnetic flux; Magnetic sensors; Magnetic separation; Magnetostriction; Voltage; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
