Non-Destructive Techniques Based on Eddy Current Testing

被引：784
作者：
Garcia-Martin, Javier [1 ,2 ]
Gomez-Gil, Jaime [1 ]
Vazquez-Sanchez, Ernesto [1 ]
机构：
[1] Univ Valladolid, UVA, Dept Signal Theory Commun & Telemat Engn, E-47011 Valladolid, Spain
[2] ISEND, Boecillo Valladolid, Spain
来源：
SENSORS | 2011年 / 11卷 / 03期
关键词：
non-destructive testing; eddy current; magnetic field; sensor; coil probe; impedance; crack; impedance plane; conductivity; FEATURE-EXTRACTION; PROBE IMPEDANCE; INSPECTION; STRESS; TUBE; CONDUCTIVITY; SYSTEM; EQUATION; WOBBLE; SENSOR;
D O I：
10.3390/s110302525
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
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页码：2525 / 2565
页数：41
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