Parameter analysis of pulsed eddy current sensor using principal component analysis
Journal article
Nafiah, F, Tokhi, MO, Shirkoohi, G, Duan, F, Zhao, Z, Asfis, G and Rudlin, J (2020). Parameter analysis of pulsed eddy current sensor using principal component analysis. IEEE Sensors Journal. https://doi.org/10.1109/JSEN.2020.3036967
Authors | Nafiah, F, Tokhi, MO, Shirkoohi, G, Duan, F, Zhao, Z, Asfis, G and Rudlin, J |
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Abstract | Pulsed eddy current (PEC) technique provides a means to inspect structures without surface contact. It is particularly useful when the structure’s surface is rough or inaccessible, such as insulated pipes in pipeline. Probe parameters of a PEC system, especially the sensing and excitation coil diameters, can significantly affect the PEC system’s performance. Thus, detailed analysis of these parameters is paramount in developing a PEC system. Currently, this is accomplished by establishing the trend of features with respect to the analyzed variables, e.g. sample thicknesses. However, prior to extracting these features, a number of configuration parameters have to be determined. For this reason, analyzing PEC performance over a range of coil diameter values is rather time-consuming as both the sensing and excitation coil diameters significantly affect the received signals. Principal component analysis (PCA) is proposed as an alternative to the feature extraction. The work here analyzes the trends contributed by the PCA scores for different values of sensing and excitation coil parameters. Results from both numerical simulations and experiments suggest that the sensitivity of the PEC probe is highly correlated with the excitation coil diameter, while the excitation-sensing coil distance is not significant in determining the sensitivity of the PEC probe. These findings are consistent with those reported in the literature, suggesting the potential of adopting PCA for an automated PEC performance analysis process. |
Keywords | Parameter analysis; Pipeline inspection; Principal component analysis; Pulsed eddy current |
Year | 2020 |
Journal | IEEE Sensors Journal |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
ISSN | 1530-437X |
Digital Object Identifier (DOI) | https://doi.org/10.1109/JSEN.2020.3036967 |
Publication dates | |
09 Nov 2020 | |
Publication process dates | |
Accepted | 02 Nov 2020 |
Deposited | 05 Nov 2020 |
Accepted author manuscript | License File Access Level Open |
Additional information | © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
https://openresearch.lsbu.ac.uk/item/8v115
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Accepted author manuscript
IEEE Sensors_PEC-PCA_accepted.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
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