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Electromagnetic Testing of Corrosion at Rivet Sites via Principal Component Analysis

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Abstract

Detection of corrosion at rivet sites in a multilayer structure of an aircraft is an essential task to ensure the flight safety of an aircraft. It is challenging to detect the corrosion due to the influence on the signal of the rivet and the multiple fastened layers in the structure. In this letter, an electromagnetic testing method is used in conjunction with principal component analysis (PCA) to detect corrosion around fasteners. Multiple Hall sensors were used for efficient measurement of the magnetic field distribution at the rivet sites. The features of the scanned magnetic image were automatically extracted by the PCA in orthogonal subspaces. The proposed method shows potential results of features extraction and corrosion signal extraction for further development of electromagnetic testing systems in multilayer engineering structures.

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Acknowledgments

This research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 103.02-2019.342

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Authors and Affiliations

  1. Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi, 12116, Vietnam

    Minhhuy Le, Van Su Luong & Khoa Dang Nguyen

  2. Phenikaa Research and Technology Institute (PRATI), A&A Green Phoenix Group JSC, No.167 Hoang Ngan, Trung Hoa, Cau Giay, Hanoi, 11313, Vietnam

    Minhhuy Le, Van Su Luong & Khoa Dang Nguyen

  3. IT-Based Real-Time NDT Center, Chosun University, Gwangju, 61452, Korea

    Jinyi Lee

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  1. Minhhuy Le
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  2. Van Su Luong
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  3. Khoa Dang Nguyen
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Correspondence to Minhhuy Le.

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Le, M., Luong, V.S., Nguyen, K.D. et al. Electromagnetic Testing of Corrosion at Rivet Sites via Principal Component Analysis. J Nondestruct Eval 40, 36 (2021). https://doi.org/10.1007/s10921-021-00768-8

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  • DOI: https://doi.org/10.1007/s10921-021-00768-8

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