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

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3821

Lastpage

3823

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42444

Filename

42444