Abstract
Steel is an important material in modern society. It is widely used in our lives, such as in buildings, bridges, and airplanes. We previously reported an analysis method for examining the internal defects of metal structures with eddy current testing (ECT) over a wide range of frequencies. However, internal defects in steel plates are difficult to detect using ECT. In this paper, we present a low-frequency magnetic flux leakage (MFL) method for the nondestructive evaluation of internal defects in steel structures, and an analysis and imaging method that uses the phase of a magnetic field to examine internal defects. By analyzing the phase change in the detected signal, the internal defects can be detected with no magnetic fluctuation. The phase map of the measured magnetic field exhibits good correlation with the simulation results. The two-dimensional magnetic phase map can be used to visualize the internal defects. This new method has been validated through both experiment and simulation.
| Original language | English |
|---|---|
| Title of host publication | SAS 2017 - 2017 IEEE Sensors Applications Symposium, Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781509032020 |
| DOIs | |
| Publication status | Published - Apr 6 2017 |
| Event | 12th IEEE Sensors Applications Symposium, SAS 2017 - Glassboro, United States Duration: Mar 13 2017 → Mar 15 2017 |
Other
| Other | 12th IEEE Sensors Applications Symposium, SAS 2017 |
|---|---|
| Country | United States |
| City | Glassboro |
| Period | 3/13/17 → 3/15/17 |
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Keywords
- internal defects
- low-frequency magnetic field
- Magnetic flux leakage method
- steel plate
ASJC Scopus subject areas
- Instrumentation
- Electrical and Electronic Engineering
- Health Informatics
Cite this
Detecting internal defects of a steel plate by using low-frequency magnetic flux leakage method. / Song, Nannan; Haga, Yuta; Goda, Tsuyoshi; Sakai, Kenji; Kiwa, Toshihiko; Tsukada, Keiji.
SAS 2017 - 2017 IEEE Sensors Applications Symposium, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. 7894069.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Detecting internal defects of a steel plate by using low-frequency magnetic flux leakage method
AU - Song, Nannan
AU - Haga, Yuta
AU - Goda, Tsuyoshi
AU - Sakai, Kenji
AU - Kiwa, Toshihiko
AU - Tsukada, Keiji
PY - 2017/4/6
Y1 - 2017/4/6
N2 - Steel is an important material in modern society. It is widely used in our lives, such as in buildings, bridges, and airplanes. We previously reported an analysis method for examining the internal defects of metal structures with eddy current testing (ECT) over a wide range of frequencies. However, internal defects in steel plates are difficult to detect using ECT. In this paper, we present a low-frequency magnetic flux leakage (MFL) method for the nondestructive evaluation of internal defects in steel structures, and an analysis and imaging method that uses the phase of a magnetic field to examine internal defects. By analyzing the phase change in the detected signal, the internal defects can be detected with no magnetic fluctuation. The phase map of the measured magnetic field exhibits good correlation with the simulation results. The two-dimensional magnetic phase map can be used to visualize the internal defects. This new method has been validated through both experiment and simulation.
AB - Steel is an important material in modern society. It is widely used in our lives, such as in buildings, bridges, and airplanes. We previously reported an analysis method for examining the internal defects of metal structures with eddy current testing (ECT) over a wide range of frequencies. However, internal defects in steel plates are difficult to detect using ECT. In this paper, we present a low-frequency magnetic flux leakage (MFL) method for the nondestructive evaluation of internal defects in steel structures, and an analysis and imaging method that uses the phase of a magnetic field to examine internal defects. By analyzing the phase change in the detected signal, the internal defects can be detected with no magnetic fluctuation. The phase map of the measured magnetic field exhibits good correlation with the simulation results. The two-dimensional magnetic phase map can be used to visualize the internal defects. This new method has been validated through both experiment and simulation.
KW - internal defects
KW - low-frequency magnetic field
KW - Magnetic flux leakage method
KW - steel plate
UR - http://www.scopus.com/inward/record.url?scp=85018244133&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85018244133&partnerID=8YFLogxK
U2 - 10.1109/SAS.2017.7894069
DO - 10.1109/SAS.2017.7894069
M3 - Conference contribution
BT - SAS 2017 - 2017 IEEE Sensors Applications Symposium, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -