Sensors 2011, 11(3), 2525-2565; doi:10.3390/s110302525

Non-Destructive Techniques Based on Eddy Current Testing

1,2,* email, 1email and 1email
Received: 5 January 2011; in revised form: 19 January 2011 / Accepted: 9 February 2011 / Published: 28 February 2011
(This article belongs to the Special Issue Advanced Sensing Technology for Nondestructive Evaluation)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Non-destructive techniques are used widely in the metal industry in order to control the quality of materials. Eddy current testing is one of the most extensively used non-destructive techniques for inspecting electrically conductive materials at very high speeds that does not require any contact between the test piece and the sensor. This paper includes an overview of the fundamentals and main variables of eddy current testing. It also describes the state-of-the-art sensors and modern techniques such as multi-frequency and pulsed systems. Recent advances in complex models towards solving crack-sensor interaction, developments in instrumentation due to advances in electronic devices, and the evolution of data processing suggest that eddy current testing systems will be increasingly used in the future.
Keywords: non-destructive testing; eddy current; magnetic field; sensor; coil probe; impedance; crack; impedance plane; conductivity
PDF Full-text Download PDF Full-Text [3772 KB, uploaded 21 June 2014 03:32 CEST]

Export to BibTeX |

MDPI and ACS Style

García-Martín, J.; Gómez-Gil, J.; Vázquez-Sánchez, E. Non-Destructive Techniques Based on Eddy Current Testing. Sensors 2011, 11, 2525-2565.

AMA Style

García-Martín J, Gómez-Gil J, Vázquez-Sánchez E. Non-Destructive Techniques Based on Eddy Current Testing. Sensors. 2011; 11(3):2525-2565.

Chicago/Turabian Style

García-Martín, Javier; Gómez-Gil, Jaime; Vázquez-Sánchez, Ernesto. 2011. "Non-Destructive Techniques Based on Eddy Current Testing." Sensors 11, no. 3: 2525-2565.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert