TY - JOUR
T1 - Development of a novel electromagnetic technique for detection of cracks by use of micro antenna
AU - Sato, Noriko
AU - Shoji, Tetsuo
AU - Sato, Yasumoto
AU - Sato, Motoyuki
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1999
Y1 - 1999
N2 - When alternating current is applied to paramagnetic materials, such as austenitic stainless steels or aluminum alloys, the existence of cracks on the material surface or subsurface causes changes in current flow around them and, as a result, electromagnetic wave generated with this change in current flow can be detected on or near surface of a material. In this case, there is a possibility for detection of these defects by detecting electromagnetic wave by antenna. Hence, the measurements can be done without contact or without removing paint. In this paper, first results on detection of electromagnetic wave around defects with shielded loop antenna is described with a principle of this novel NDI method.
AB - When alternating current is applied to paramagnetic materials, such as austenitic stainless steels or aluminum alloys, the existence of cracks on the material surface or subsurface causes changes in current flow around them and, as a result, electromagnetic wave generated with this change in current flow can be detected on or near surface of a material. In this case, there is a possibility for detection of these defects by detecting electromagnetic wave by antenna. Hence, the measurements can be done without contact or without removing paint. In this paper, first results on detection of electromagnetic wave around defects with shielded loop antenna is described with a principle of this novel NDI method.
KW - Antenna
KW - Electromagnetic wave
KW - Nondestructive inspection
KW - Surface crack
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U2 - 10.1299/kikaia.65.925
DO - 10.1299/kikaia.65.925
M3 - Article
AN - SCOPUS:0012777441
VL - 65
SP - 925
EP - 931
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 632
ER -