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Nondestructive testing for metallic flaws using inductive coil sensor with circular typed single loop excitation coil

Title
Nondestructive testing for metallic flaws using inductive coil sensor with circular typed single loop excitation coil
Author
김종렬
Issue Date
2007-12
Publisher
WILEY-V C H VERLAG GMBH
Citation
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, v. 204, No. 12, Page. 4083-4086
Abstract
AC magnetic field was used for the detection of flaws on surface of the conductive specimens. The nondestructive sensor probe was composed of the magnetic yoke coil as a sensing component and exciting single line coil. The excitation coil generated the AC magnetic fields with the frequency of around 27 kHz which were applied to the specimen with artificial flaws. The specimens were prepared with the various shape (slit and hole), size (minimum depth and width; 0.5 mm) of artificial flaws on each of material (Al Cu; nonmagnetic metal, Fe, FeC; magnetic metal), respectively. The signal for the positions and shapes of surface flaws on metallic specimens were detected with high sensitivity with signal to noise ratio of over 15 by the magnetic yoke typed search coil. The images of flaws were obtained by measured output signal, which results were good coincidence with real flaws. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
URI
https://onlinelibrary.wiley.com/doi/abs/10.1002/pssa.200777288http://repository.hanyang.ac.kr/handle/20.500.11754/107538
ISSN
1862-6300; 1862-6319
DOI
10.1002/pssa.200777288
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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