https://doi.org/10.1051/epjap:2007169
Giant magnetoimpedance effect in a coil with magnetic core and its application in current monitoring
1
Magnetoelectronics Lab, Nanjing Normal University, Nanjing 210097, P.R. China
2
Information Engineering Department, Jiangsu Television University, Nanjing 210036, P.R. China
Corresponding author: zhangning@njnu.edu.cn
Received:
20
August
2007
Revised:
16
October
2007
Accepted:
22
October
2007
Published online:
19
December
2007
The behavior of a coil with ferrite core applied with an ac current and under a magnetic field has been investigated. The field-induced changes of both inductance and impedance have been observed. Based on this, a device for electric current monitoring with the coil has been developed. The result has shown that such a device is very sensitive and high efficiency, and convenient to use in the field of power transmission and management.
PACS: 85.75.Ss – Magnetic field sensors using spin polarized transport / 84.37.+q – Measurements in electric variables / 84.32.Hh – Inductors and coils; wiring / 85.70.Ge – Ferrite and garnet devices
© EDP Sciences, 2007
