Enhancement of sizing capability of ECT for deep cracks by using split TR probes

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Zuo, Yongbin^a | Chen, Zhenmao^{a; *} | Mao, Ying^a | Zhang, Jing^a

Affiliations: [a] MOE Key Laboratory for Strength and Vibration, School of Aerospace, Xi'an Jiaotong University, Xi'an, 710049, China

Correspondence: [*] Corresponding author. Tel.: +86 29 82668736; Fax: +86 29 82668736; E-mail: chenzm@mail.xjtu.edu.cn

Abstract: In this paper, the performance of two probes of split TR structure is evaluated by numerical analysis aiming at the enhancement of sizing capability of ECT for a deep crack. The structures of the two probes are respectively of reflection and transmission type consisting of a rectangular excitation unit and a pancake pickup coil. A modified way is proposed for the reflection type probe to improve the eddy current penetration. Numerical results reveal that the modified reflection type probe and the transmission type probe are promising for the sizing of deep cracks.

Keywords: Split TR probes, deep cracks, ECT, numerical simulation

DOI: 10.3233/JAE-2010-1233

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1157-1164, 2010