Abstract
This study performs an analysis of a small eddy current probe configuration based on differential anisotropic magnetoresistance (AMR) sensors for characterization of small surface defects in galvanized steel plates. Owing to the advantage of the AMR sensor, the system of eddy current testing (ECT) with the AMR sensor has a huge benefit to detect sub-millimeter defects in steel structures. In this study, an ECT probe is developed by using AMR sensors to perform crack detection in 2-mm galvanized steel plates with regards to the depth of artificial slits where the ECT probe is scanned above the slits’ area. The signal that is detected by a lock-in amplifier is investigated with different frequencies of an excitation field. The line-scanned of signal intensity shows a clear intensity change at the crack area. This signal depends on the depth and frequencies. Finally, a correlation between depth and detected signals is clarified with respect to different frequencies.
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References
Tsukada K, Kiwa T, Kawata T, Ishihara Y (2006) Low-frequency eddy current imaging using MR sensor detecting tangential magnetic field components for nondestructive evaluation. IEEE Trans Magn 42:3315–3317
Postolache O, Ribeiro A, Ramos HG (2009) Weld testing using eddy current probes and image processing. In: XIX IMEKO world congress fundamental and applied metrology, 1–6
Saari MM, Nadzri NA, Halil AM, Ishak M, Sakai K, Kiwa T, Tsukada K (2019) Design of eddy current testing probe for surface defect evaluation. Int J Autom Mech Eng 16:1–11
Hoang N (2018) Detection of surface crack in building structures using image processing technique with an improved Otsu method for image thresholding. Adv Civil Eng 2018:10 p. Article ID 3924120
GarcĂa-MartĂn J, GĂłmez-Gil J, Vázquez-Sánchez E (2011) Non-destructive techniques based on eddy current testing. Sensors 11:2525–2565
Sophian A, Tian G, Fan M (2017) Pulsed eddy current non-destructive testing and evaluation: a review. Chin J Mech Eng 30:500–514
Ghanei S, Kashefi M, Mazinani M (2013) Eddy current nondestructive evaluation of dual phase steel. Mater Des 50:491–496
Nadzri NA (2018) Development of eddy current testing system for welding inspection. In: 9th IEEE control and system graduate research colloquium, pp 94–98
He D, Shiwa M (2014) A magnetic sensor with amorphous wire. Sensors (Switzerland) 14:10644–10649
He D, (2017) AMR Sensor and its Application on Nondestructive Evaluation. In Magnetic Sensors - Development Trends and Applications, pp 133–154
Tsukada K, Hayashi M, Nakamura Y, Sakai K, Kiwa T (2018) Small eddy current testing sensor probe using a tunneling magnetoresistance sensor to detect cracks in steel structures. IEEE Trans Magn 54(11):1–5
Jander A, Smith C, Schneider R (2005) Magnetoresistive sensors for nondestructive evaluation. In: Proceedings of SPIE, pp 1–13
Tsukada K, Haga Y, Morita K, Song N, Sakai K, Kiwa T, Cheng W (2016) Detection of inner corrosion of steel construction using magnetic resistance sensor and magnetic spectroscopy analysis. IEEE Trans Magn 52:1–4
Mook G, Magdeburg O (2006) Deep penetrating eddy currents and probes. Materialprufung (MATER TEST), 1–14
Acknowledgements
The authors would like to thank the Universiti Malaysia Pahang (grant no. RDU170377 and PGRS190321) for laboratory facilities and financial assistance.
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Nadzri, N.A., Saari, M.M., Zaini, M.A.H.P., Halil, A.M., Hanifah, A.J.S., Ishak, M. (2020). Depth Evaluation of Slits on Galvanized Steel Plate Using a Low Frequency Eddy Current Probe. In: Kasruddin Nasir, A.N., et al. InECCE2019. Lecture Notes in Electrical Engineering, vol 632. Springer, Singapore. https://doi.org/10.1007/978-981-15-2317-5_6
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DOI: https://doi.org/10.1007/978-981-15-2317-5_6
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