A novel deep penetrating eddy current probe based on phase shifted fields and its application to inspection of defects

• Autorzy: Wu Meixian , Zhang Dongli , Wang Chuanglong

Identyfikatory

DOI

10.24425/mms.2020.132774

• Języki publikacji: EN

Abstrakty

EN

Due to the skin effect of eddy currents, the depth of cracks which can be detected by the traditional eddy current probe is very limited. In order to improve the ability of eddy current probes to inspect deep cracks in metal thick-walled structures, a new eddy current probe using an excitation system with phase shifted fields was proposed. Its feasibility for detecting deep cracks was verified by simulation and experiments. The results showed that the penetration depth of eddy currents in austenitic stainless steel is effectively enhanced by using the new probe.

Słowa kluczowe

EN

skin effect; penetration depth; austenitic stainless steel; eddy current probe; phase shifted fields

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2020
• Tom: Vol. 27, nr 2
• Strony: 275--287
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr., wzory

Twórcy

autor

Wu Meixian

• North Minzu University, School of Chemistry and Chemical Engineering, 204 North Wenchang Road Xixia District, 750021, Yinchuan, Ningxia, China

autor

Zhang Dongli

• North Minzu University, School of Chemistry and Chemical Engineering, 204 North Wenchang Road Xixia District, 750021, Yinchuan, Ningxia, China

autor

Wang Chuanglong

• North Minzu University, School of Chemistry and Chemical Engineering, 204 North Wenchang Road Xixia District, 750021, Yinchuan, Ningxia, China

Bibliografia

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• [12] Cheng, W., Komura, I. (2010). Optimum inducement of eddy current for NDE of deep lying defects: An analytical approach. International Journal of Applied Electromagnetics and Mechanics, 33(1-2), 377-385.
• [13] Zuo, Y., Chen, Z., Mao, Y., Zhang, J. (2010). Enhancement of sizing capability of ECT for deep cracks by using split TR probes. International Journal of Applied Electromagnetics and Mechanics, 33(3-4), 1157-1164.
• [14] Janousek, L., Chen, Z., Yusa, N., Miya, K. (2005). Excitation with phase shifted fields-enhancing evaluation of deep cracks in eddy-current testing. NDT&E International, 38(3), 508-515.
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Uwagi

EN

1. This work was supported within the National Natural Science Foundation of China (Grant No. 51667001), by the Key Scientific Research Projects of North Minzu University (Grant No. 2019KJ36) and within the General Research Projects of Key Laboratory of Chemical Engineering and Technology Foundation of State Ethnic Affairs Commission (Grant No. 2017HG06).

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).