Title :
AC bias type magnetoresistive sensor
Author :
Ueda, M. ; Endoh, M. ; Yoda, H. ; Wakatsuki, N.
Author_Institution :
Fujitsu Ltd., Kawasaki, Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
An AC-bias-type magnetoresistive (MR) sensor which uses a ferromagnetic thin film is proposed to improve offset voltage and hysteresis. It was experimentally confirmed that an MR sensor with an applied AC bias magnetic field can generate an AC output proportional to the external magnetic field (DC magnetic field) which is independent of offset voltage and hysteresis
Keywords :
electric sensing devices; magnetic field measurement; magnetic hysteresis; magnetic thin film devices; magnetic thin films; AC bias type magnetoresistive sensor; AC output; DC magnetic field; applied AC bias magnetic field; external magnetic field; ferromagnetic thin film; hysteresis; offset voltage; Magnetic field induced strain; Magnetic films; Magnetic hysteresis; Magnetic sensors; Magnetization; Magnetoresistance; Sensor phenomena and characterization; Temperature sensors; Thin film sensors; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
