Abstract
An automatic nondestructive evaluation system using the magnetic-flux-leakage method was developed for detecting the back-side defects of large structures in order to realize fast detection in a wide measurement area. A magnetic field was applied to an object using a ferrite yoke with an induction coil, and the leaked magnetic flux from the object was detected by a magnetoresistive sensor. This measurement probe was fixed on an automatic scanning system. The developed automatic scanning system detected magnetic signal changes corresponding to the back-side defects of the steel plates. To demonstrate the effectiveness of the developed system, we measured the steel plate of a cargo crane, which was corroded on the back side. We found that the detected magnetic signal changed markedly in the area with corrosion, whereas only a slight magnetic signal change was detected in the area without corrosion. Therefore, the developed system is useful for detecting the back-side defects in a wide area, and can be used for screening tests.
| Original language | English |
|---|---|
| Article number | 7151805 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 51 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 1 2015 |
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Keywords
- Automatic testing
- Magnetic flux leakage
- Magnetic sensors
- Non-destructive testing
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
Automatic Scanning System for Back-Side Defect of Steel Structure Using Magnetic Flux Leakage Method. / Sakai, Kenji; Morita, Koji; Haga, Yuta; Kiwa, Toshihiko; Inoue, Katsumi; Tsukada, Keiji.
In: IEEE Transactions on Magnetics, Vol. 51, No. 11, 7151805, 01.11.2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Automatic Scanning System for Back-Side Defect of Steel Structure Using Magnetic Flux Leakage Method
AU - Sakai, Kenji
AU - Morita, Koji
AU - Haga, Yuta
AU - Kiwa, Toshihiko
AU - Inoue, Katsumi
AU - Tsukada, Keiji
PY - 2015/11/1
Y1 - 2015/11/1
N2 - An automatic nondestructive evaluation system using the magnetic-flux-leakage method was developed for detecting the back-side defects of large structures in order to realize fast detection in a wide measurement area. A magnetic field was applied to an object using a ferrite yoke with an induction coil, and the leaked magnetic flux from the object was detected by a magnetoresistive sensor. This measurement probe was fixed on an automatic scanning system. The developed automatic scanning system detected magnetic signal changes corresponding to the back-side defects of the steel plates. To demonstrate the effectiveness of the developed system, we measured the steel plate of a cargo crane, which was corroded on the back side. We found that the detected magnetic signal changed markedly in the area with corrosion, whereas only a slight magnetic signal change was detected in the area without corrosion. Therefore, the developed system is useful for detecting the back-side defects in a wide area, and can be used for screening tests.
AB - An automatic nondestructive evaluation system using the magnetic-flux-leakage method was developed for detecting the back-side defects of large structures in order to realize fast detection in a wide measurement area. A magnetic field was applied to an object using a ferrite yoke with an induction coil, and the leaked magnetic flux from the object was detected by a magnetoresistive sensor. This measurement probe was fixed on an automatic scanning system. The developed automatic scanning system detected magnetic signal changes corresponding to the back-side defects of the steel plates. To demonstrate the effectiveness of the developed system, we measured the steel plate of a cargo crane, which was corroded on the back side. We found that the detected magnetic signal changed markedly in the area with corrosion, whereas only a slight magnetic signal change was detected in the area without corrosion. Therefore, the developed system is useful for detecting the back-side defects in a wide area, and can be used for screening tests.
KW - Automatic testing
KW - Magnetic flux leakage
KW - Magnetic sensors
KW - Non-destructive testing
UR - http://www.scopus.com/inward/record.url?scp=84946125570&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946125570&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2015.2453211
DO - 10.1109/TMAG.2015.2453211
M3 - Article
AN - SCOPUS:84946125570
VL - 51
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 11
M1 - 7151805
ER -