Pulsed magnetic field measurement system using GMR

Author

Xu Xianghui ; Gao Cheng ; Zhang Haitao ; Li Yanxin ; Lu Zhao

Author_Institution

Nat. Key Lab. on Electromagn. Environ. Effects & Electro-Opt. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

fYear

2012

fDate

6-9 Nov. 2012

Firstpage

403

Lastpage

407

Abstract

In order to measure the pulsed magnetic field, a pulsed magnetic field measurement system was developed in this paper, using a sensor called GMR. The output signals of this system were acquired and stored with an oscilloscope. The pulsed magnetic field measurement system was verified by experiments, with the pulsed magnetic field generated by the lightning pulsed magnetic field simulator. The results show that the system has some advantages such as simple structure, small size, high measurement accuracy and wide response frequency band. It not only can effectively measure the pulsed magnetic field, but also has the ability to measure the static or slowly varying magnetic field such as geomagnetic field.

Keywords

giant magnetoresistance; magnetic field measurement; magnetic sensors; GMR; geomagnetic field; giant magnetoresistance sensor; oscilloscope; pulsed magnetic field measurement system; pulsed magnetic field simulator; wide response frequency band; Current measurement; Magnetic domains; Magnetic field measurement; Magnetic fields; Magnetic multilayers; Pulse measurements; Semiconductor device measurement; GMR; geomagnetic field; measurement system; pulsed magnetic field;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Electromagnetics (CEEM), 2012 6th Asia-Pacific Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4673-0030-8

Type

conf

DOI

10.1109/CEEM.2012.6410654

Filename

6410654