Next Article in Journal / Special Issue
Design of Meter-Scale Antenna and Signal Detection System for Underground Magnetic Resonance Sounding in Mines
Previous Article in Journal
Modifications of Au Nanoparticle-Functionalized Graphene for Sensitive Detection of Sulfanilamide
Previous Article in Special Issue
Design and Fabrication of a Miniaturized GMI Magnetic Sensor Based on Amorphous Wire by MEMS Technology
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(3), 847; https://doi.org/10.3390/s18030847

Research on the Factors Influencing the Measurement Errors of the Discrete Rogowski Coil

This paper is an expanded version of our paper published in Sun, C.; Yan, J.; Geng, Y.; Zhang, K.; Xu, M.; Liu, J. Research on a novel current transducer based on discrete Rogowski coils. In Proceedings of International Conference on Condition Monitoring and Diagnosis, Xi’an, China, 25–28 September 2016; pp. 798–801.
State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China
*
Author to whom correspondence should be addressed.
Received: 22 January 2018 / Revised: 8 March 2018 / Accepted: 9 March 2018 / Published: 13 March 2018
(This article belongs to the Special Issue Magnetic Sensors)
Full-Text   |   PDF [12066 KB, uploaded 13 March 2018]   |  

Abstract

An innovative array of magnetic coils (the discrete Rogowski coil—RC) with the advantages of flexible structure, miniaturization and mass producibility is investigated. First, the mutual inductance between the discrete RC and circular and rectangular conductors are calculated using the magnetic vector potential (MVP) method. The results are found to be consistent with those calculated using the finite element method, but the MVP method is simpler and more practical. Then, the influence of conductor section parameters, inclination, and eccentricity on the accuracy of the discrete RC is calculated to provide a reference. Studying the influence of an external current on the discrete RC’s interference error reveals optimal values for length, winding density, and position arrangement of the solenoids. It has also found that eccentricity and interference errors decreasing with increasing number of solenoids. Finally, a discrete RC prototype is devised and manufactured. The experimental results show consistent output characteristics, with the calculated sensitivity and mutual inductance of the discrete RC being very close to the experimental results. The influence of an external conductor on the measurement of the discrete RC is analyzed experimentally, and the results show that interference from an external current decreases with increasing distance between the external and measured conductors. View Full-Text
Keywords: discrete Rogowski coil; mutual inductance; magnetic vector potential; interference error; eccentricity error discrete Rogowski coil; mutual inductance; magnetic vector potential; interference error; eccentricity error
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Xu, M.; Yan, J.; Geng, Y.; Zhang, K.; Sun, C. Research on the Factors Influencing the Measurement Errors of the Discrete Rogowski Coil. Sensors 2018, 18, 847.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top