Title :
A new electric power sensor module using magnetoresistive thin film
Author :
Yoda, H. ; Kurashima, S. ; Endoh, M. ; Wakatsuki, N.
Author_Institution :
Fujitsu Ltd., Kawasaki, Japan
fDate :
9/1/1989 12:00:00 AM
Abstract :
The authors describe an electric power sensor module using Ni-Fe magnetoresistive thin film. It is compact and microprocessor-interfaceable. The module is constructed of five components: a bridge-type magnetoresistive element used as a multiplier, a permanent magnet to provide some magnetic bias, a Permalloy case for a magnetic shield, an isolation transformer, and an amplifier. The thin-film element has good offset voltage/temperature characteristics and linearity
Keywords :
electric sensing devices; iron alloys; magnetic thin film devices; magnetoresistance; modules; nickel alloys; power measurement; Ni-Fe magnetoresistive thin film; Permalloy case; amplifier; bridge-type magnetoresistive element; electric power sensor module; isolation transformer; linearity; magnetic bias; magnetic shield; offset voltage/temperature characteristics; permanent magnet; Electrodes; Hall effect devices; Magnetic field measurement; Magnetic fields; Magnetic sensors; Magnetoresistance; Sensor phenomena and characterization; Temperature sensors; Thin film sensors; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
