Title :
A high frequency carrier-type magnetic field sensor using carrier suppressing circuit
Author :
Yabukami, S. ; Suzuki, T. ; Ajiro, N. ; Kikuchi, H. ; Yamaguchi, M. ; Arai, K.I.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
fDate :
7/1/2001 12:00:00 AM
Abstract :
A highly sensitive high frequency carrier-type magnetic field sensor based on the giant magnetoimpedance effect has been developed. It has been combined with a high frequency carrier suppressing circuit to reduce carrier phase noise dramatically. Highly sensitive magnetic field resolution of 8.8×10-7 Oe (8.8×10-11 T) was demonstrated
Keywords :
giant magnetoresistance; magnetic field measurement; magnetic sensors; magnetoresistive devices; phase noise; carrier phase noise; carrier suppressing circuit; carrier-type magnetic field sensor; giant magnetoimpedance effect; magnetic field resolution; Amplitude modulation; Circuit noise; Frequency; Impedance; Magnetic circuits; Magnetic sensors; Phase detection; Phase noise; Sensor phenomena and characterization; Spectral analysis;
Journal_Title :
Magnetics, IEEE Transactions on
