Permeability invariance phenomenon and measurement of electrical conductivity for ferrite metallic plates

Wuliang Yin; Xiaobai Meng; Mingyang Lu; Qian Zhao; Hanyang Xu; Zhijie Zhang; A Peyton

doi:10.1784/insi.2019.61.8.472

Permeability invariance phenomenon and measurement of electrical conductivity for ferrite metallic plates

Wuliang Yin, Xiaobai Meng, Mingyang Lu, Qian Zhao, Hanyang Xu, Zhijie Zhang, A Peyton

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Abstract

In this paper, a permeability invariance phenomenon with a controlled lift-off is found and investigated. It is discovered that at certain lift-off, the impact of permeability on inductance is eliminated/reduced. Based on this phenomenon, a novel electrical conductivity measurement technique for ferrous plates is proposed. The proposed approach is verified by both simulation and experimental data. Moreover, the conductivity is estimated with reasonable accuracy (with an error of 2%) by the proposed approach without the influence of its permeability.

Original language	English
Pages (from-to)	472-479
Journal	Insight: Non-Destructive Testing and Condition Monitoring
Volume	61
Issue number	8
DOIs	https://doi.org/10.1784/insi.2019.61.8.472
Publication status	Published - 1 Aug 2019

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10.1784/insi.2019.61.8.472

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Electromagnetic Sensing Group
Peyton, A. (PI), Fletcher, A. (Researcher), Daniels, D. (CoI), Conniffe, D. (PGR student), Podd, F. (PI), Davidson, J. (Researcher), Anderson, J. (Support team), Wilson, J. (Researcher), Marsh, L. (PI), O'Toole, M. (PI), Watson, S. (PGR student), Yin, W. (PI), Regan, A. (PGR student), Williams, K. (Researcher), Rana, S. (Researcher), Khalil, K. (PGR student), Hills, D. (PGR student), Whyte, C. (PGR student), Wang, C. (PGR student), Hodgskin-Brown, R. (PGR student), Dadkhahtehrani, F. (PGR student), Forster, S. (PGR student), Zhu, F. (PGR student), Yu, K. (PGR student), Xiong, L. (PGR student), Lu, T. (PGR student), Zhang, L. (PGR student), Lyu, R. (PGR student), Zhu, R. (PGR student), She, S. (PGR student), Meng, T. (PGR student), Pang, X. (PGR student), Zheng, X. (PGR student), Bai, X. (PGR student), Zou, X. (PGR student), Ding, Y. (PGR student), Shao, Y. (PGR student), Xia, Z. (PGR student), Zhang, Z. (PGR student), Khangerey, R. (PGR student) & Lawless, B. (Researcher)
1/10/04 → …
Project: Research

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title = "Permeability invariance phenomenon and measurement of electrical conductivity for ferrite metallic plates",

abstract = "In this paper, a permeability invariance phenomenon with a controlled lift-off is found and investigated. It is discovered that at certain lift-off, the impact of permeability on inductance is eliminated/reduced. Based on this phenomenon, a novel electrical conductivity measurement technique for ferrous plates is proposed. The proposed approach is verified by both simulation and experimental data. Moreover, the conductivity is estimated with reasonable accuracy (with an error of 2%) by the proposed approach without the influence of its permeability.",

author = "Wuliang Yin and Xiaobai Meng and Mingyang Lu and Qian Zhao and Hanyang Xu and Zhijie Zhang and A Peyton",

year = "2019",

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AU - Yin, Wuliang

AU - Meng, Xiaobai

AU - Lu, Mingyang

AU - Zhao, Qian

AU - Xu, Hanyang

AU - Zhang, Zhijie

AU - Peyton, A

PY - 2019/8/1

Y1 - 2019/8/1

N2 - In this paper, a permeability invariance phenomenon with a controlled lift-off is found and investigated. It is discovered that at certain lift-off, the impact of permeability on inductance is eliminated/reduced. Based on this phenomenon, a novel electrical conductivity measurement technique for ferrous plates is proposed. The proposed approach is verified by both simulation and experimental data. Moreover, the conductivity is estimated with reasonable accuracy (with an error of 2%) by the proposed approach without the influence of its permeability.

AB - In this paper, a permeability invariance phenomenon with a controlled lift-off is found and investigated. It is discovered that at certain lift-off, the impact of permeability on inductance is eliminated/reduced. Based on this phenomenon, a novel electrical conductivity measurement technique for ferrous plates is proposed. The proposed approach is verified by both simulation and experimental data. Moreover, the conductivity is estimated with reasonable accuracy (with an error of 2%) by the proposed approach without the influence of its permeability.

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DO - 10.1784/insi.2019.61.8.472

M3 - Article

SN - 1354-2575

VL - 61

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JO - Insight: Non-Destructive Testing and Condition Monitoring

JF - Insight: Non-Destructive Testing and Condition Monitoring

IS - 8

ER -

Permeability invariance phenomenon and measurement of electrical conductivity for ferrite metallic plates

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