Paper Title:
Multi-Coil Eddy Current Probe for the Detection of Circumferential Cracks in Tubing
  Abstract

Conventional eddy current bobbin probes, multi-pancake and/or rotating pancake probes, and transmit-receive eddy current probes are currently utilized in testing metal tubing. Each method has respective strengths and weaknesses. This paper proposes another eddy current probe with new features. The structure is designed to be sensitive to circumferential cracks, which are not easily detected with ordinary bobbin coil probes. The directions of the magnetic field and the eddy current around the coil were considered in design of the probe structure. Signals of these probes from the artificial defects were acquired and analyzed. Experimental results show that the developed probes are more sensitive to circumferential defects than comparable ordinary bobbin probes. In addition, the new probes are insensitive to axial defects. By employing both the new probes and ordinary bobbin probes, more reliable ECT can be performed.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
505-508
DOI
10.4028/www.scientific.net/KEM.321-323.505
Citation
Y. J. Kim, B. Y. Ahn, K. B. Kim, Y. G. Kim, "Multi-Coil Eddy Current Probe for the Detection of Circumferential Cracks in Tubing", Key Engineering Materials, Vols. 321-323, pp. 505-508, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ivaylo Dolapchiev
Chapter 4: Computational Electromagnetics
Abstract:This work presents a new eddy current surface probe that operates with minimal lift-off noise. Probe excitation coil and the two pick-up...
207
Authors: Zhi Ping Liu, Xuan Li, Ming Chang Li, Xing Le Liu, Liang Ke
Chapter 2: Novel Composite Materials
Abstract:CFRP (Carbon Fiber Reinforced Plastics) reinforcement has a significant effect and advantages of steel structure, has extensive application...
53