Improvements in GMI probe design for time-domain transient current measurements

Author

Zhou, Fan ; Wu, Songping ; Pommerenke, David ; Kayano, Yoshiki ; Inoue, Hiroshi ; Tan, Kenji ; Fan, Jun

Author_Institution

EMC Lab., Missouri Univ. of Sci. & Technol., Rolla, MO, USA

fYear

2010

fDate

25-30 July 2010

Firstpage

340

Lastpage

343

Abstract

Measurement techniques for time-domain transient currents are widely needed in many EMC applications. Demonstrated to have a lot of potential for this purpose, giant magnetio-impedance (GMI) probes are studied in this paper. Improvements in the probe design, including a balanced circuit for increased signal to noise ratio and an on-probe magnetic-field bias circuit, are proposed. These improvements in the probe design make the GMI probes more suitable for practical applications of time-domain transient current measurements.

Keywords

electric current measurement; electromagnetic compatibility; giant magnetoresistance; magnetic fields; EMC applications; GMI probe design; giant magnetio impedance; on-probe magnetic-field bias circuit; signal to noise ratio; time domain transient current measurements; Amplitude modulation; Current measurement; Magnetic field measurement; Magnetic fields; Probes; Signal to noise ratio; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC), 2010 IEEE International Symposium on

Conference_Location

Fort Lauderdale, FL

ISSN

2158-110X

Print_ISBN

978-1-4244-6305-3

Type

conf

DOI

10.1109/ISEMC.2010.5711297

Filename

5711297