Measurement of permeability for ferrous metallic plates using a novel lift-off compensation technique on phase signature

Mingyang Lu, Ruochen Huang, Wuliang Yin, Qian Zhao, Anthony Peyton

    Research output: Contribution to journal › Article › peer-review

    35 Downloads (Pure)

    Abstract

    Lift-off of sensor affects the prediction of electromagnetic properties for both ferrous and non-ferrous steel plates. In this paper, we developed a strategy to address this issue for ferrous plates. With increased lift-off, the phase of the measured impedance for steel plates reduces. Meanwhile, the magnitude of the impedance signal decreases. Based on these facts, a phase compensation algorithm is developed which corrects the phase change due to lift-off considering the magnitude of the impedance signal. Further, a new magnetic permeability prediction technique is presented, which has been validated by analytical and measured results. With this new technique, the error in permeability prediction is less than 2% within the range of lift-offs tested.
    Original languageEnglish
    JournalIEEE Sensors Journal
    DOIs
    Publication statusPublished - 13 May 2019

    Keywords

    • Measurement of magnetic permeability
    • New compensation algorithm
    • Phase signature
    • Eddy current sensor
    • Lift-off variation
    • Ferrous plates

    Access to Document

      Fingerprint

      Dive into the research topics of 'Measurement of permeability for ferrous metallic plates using a novel lift-off compensation technique on phase signature'. Together they form a unique fingerprint.
      View full fingerprint

      • 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

      • Electromagnetic Tensor Imaging for in Process Welding Inspection

        Yin, W. (PI) & Peyton, A. (CoI)

        1/08/15 → 31/07/18

        Project: Research

      Cite this