EMAT Evaluation of Thin Conductive Sheets

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Darius Andriukaitis
Kaunas University of Technology, Lithuania

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The University of Sydney, Australia

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Technical University of Cluj Napoca, Romania

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Slovak University of Technology, Slovakia

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The University of Texas at Arlington, United States

Mohamed El Hachemi Benbouzid
University of Brest, France

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University of Defence, Czech Republic

Klara Capova
University of Zilina, Slovakia

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National Taiwan University of Science and Technology, Taiwan, Province of China

Erik Chromy
UPC Broadband Slovakia, Slovakia

Milan Dado
University of Zilina, Slovakia

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Brno University of Technology, Czech Republic

Eva Gescheidtova
Brno University of Technology, Czech Republic

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Ankara University, Turkey

Janusz Jezewski
Institute of Medical Technology and Equipment, Poland

Rene Kalus
VSB - Technical University of Ostrava, Czech Republic

Ivan Kasik
Academy of Sciences of the Czech Republic, Czech Republic

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University of Defence, Czech Republic

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University of Hradec Kralove, Czech Republic

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Wroclaw University of Science and Technology, Poland

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Technical University of Radom, Poland

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Technical University of Kosice, Slovakia

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University of Economics in Katowice, Katowice, Poland

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Honeywell International, Czech Republic

Miloslav Ohlidal
Brno University of Technology, Czech Republic

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Delhi Technological University, India

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Shantou University, China

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VSB - Technical University of Ostrava, Czech Republic

Wasiu Oyewole Popoola
The University of Edinburgh, United Kingdom

Roman Prokop
Tomas Bata University in Zlin, Czech Republic

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University of Zilina, Slovakia

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University of Defence, Czech Republic

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Technical University of Cluj Napoca, Romania

Sergey Vladimirovich Serebriannikov
National Research University "MPEI", Russian Federation

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Guanajuato University, Mexico

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University of Pardubice, Czech Republic

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University of West Bohemia in Plzen, Czech Republic

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Technical University of Cluj Napoca, Romania

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Warsaw University of Technology, Poland

Ahmadreza Tabesh
Isfahan University of Technology, Iran, Islamic Republic Of

Mauro Tropea
DIMES Department of University of Calabria, Italy

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Academy of Sciences of the Czech Republic, Czech Republic

Jiri Vodrazka
Czech Technical University in Prague, Czech Republic

Miroslav Voznak
VSB - Technical University of Ostrava, Czech Republic

He Wen
Hunan University, China

Otakar Wilfert
Brno University of Technology, Czech Republic

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EMAT Evaluation of Thin Conductive Sheets

Ivo Cap, Klara Capova

DOI:

Abstract

At present a non-destructive testing of conducting materials becomes very important one in connection with monitoring and control of strategic technical facilities, e.g. nuclear power plants. There are more methods of material testing and evaluation and every of them has its advantages and disadvantages. Recently the electromagnetic methods are in increasing interest. There are many ways of conducting material testing. One of them often used utilises investigation of eddy currents induced in the surface layer by means of a proper coil. The arrangement is very simple and inexpensive but it offers only local information on cracks and other inhomogeneities in the thin surface layer. On the other hand there exist a method based on an electromagnetic – acoustic transducer (EMAT), which is able to generate and detect acoustic wave in a conducting body in a contact-less way. The present paper deals with a survey of EMATs for investigation of thin metallic
layers by means of Lamb waves. The new design of generation coil is presented.