Improvements in GMI Probe Design for Time-Domain Transient Current Measurements

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.

Meeting Name

IEEE International Symposium on Electromagnetic Compatibility (2010: Jul. 25-30, Fort Lauderdale, FL)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Bias Circuits; Measurement Techniques; Probe Design; Time Domain; Transient Current; Transient-current Measurements; Design; Electric Current Measurement; Electric Fault Currents; Electromagnetic Compatibility; Electromagnetism; Magnetic Domains; Power Quality; Probes; Signal to Noise Ratio; Transients; Time Domain Analysis

International Standard Book Number (ISBN)

978-1424463053

International Standard Serial Number (ISSN)

2158-110X

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jul 2010

Link to Full Text

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