A low frequency current transducer using amorphous materials

Author

Fosalau, Cristian ; Silion, Stefan ; Zet, Cristian

Author_Institution

Fac. of Electr. Eng., Tech. Univ. of Iasi, Iasi, Romania

fYear

2014

fDate

16-18 Oct. 2014

Firstpage

801

Lastpage

804

Abstract

Magnetic amorphous wires (MAW) exhibit remarkable properties and effects when put under the action of various external factors, making them very attractive for construction of a new generation of sensors. In the paper, the functional model of a transducer able to measure low frequency electric currents in a wide range of values is presented. The transducer is composed by a sensitive element (SE) conceived on the basis of Giant Magnetoimpedance Effect (GMI) occurring in nearly-zero magnetostrictive amorphous wires (MAW), and a Signal Conditioning Circuit (SCC) devoted to process the signal delivered by SE and to provide as output a frequency related to the measured electric current. The main characteristics of the transducer, along with some discussions on the device optimization and performances are also presented in the paper.

Keywords

amorphous state; electric current measurement; giant magnetoresistance; signal conditioning circuits; transducers; amorphous materials; giant magnetoimpedance effect; low frequency current transducer; low frequency electric currents; magnetic amorphous wires; sensitive element; signal conditioning circuit; Conductors; Frequency measurement; Impedance; Magnetic domains; Magnetostriction; Transducers; Wires; current transducer; giant magnetoimpedance effect; magnetic amorphous wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Power Engineering (EPE), 2014 International Conference and Exposition on

Conference_Location

Iasi

Type

conf

DOI

10.1109/ICEPE.2014.6970021

Filename

6970021