Detection of Slit Defects on Backside of Steel Plate Using Low- Frequency Eddy-Current-Testing.

2018 ◽  
Author(s):  
W. Yoshimura ◽  
R. Tanaka ◽  
T. Sasayama ◽  
K. Enpuku
Keyword(s):  
Eddy Current ◽  
Steel Plate ◽  
Low Frequency ◽  
Eddy Current Testing ◽  
Current Testing

Detection of Slit Defects on Backside of Steel Plate Using Low-Frequency Eddy-Current Testing

2018 ◽  
Vol 54 (11) ◽  
pp. 1-5 ◽  
Author(s):  
Wataru Yoshimura ◽  
Ryo Tanaka ◽  
Teruyoshi Sasayama ◽  
Keiji Enpuku
Keyword(s):  
Eddy Current ◽  
Steel Plate ◽  
Low Frequency ◽  
Eddy Current Testing ◽  
Current Testing

scholarly journals Research on Detection Mechanism of Weld Defects of Carbon Steel Plate Based on Orthogonal Axial Eddy Current Probe

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5515
Author(s):  
Linnan Huang ◽  
Chunhui Liao ◽  
Xiaochun Song ◽  
Tao Chen ◽  
Xu Zhang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Eddy Current ◽  
Steel Plate ◽  
Difficult Problem ◽  
Eddy Current Testing ◽  
Detection Sensitivity ◽  
Detection Mechanism ◽  
Current Testing ◽  
Weld Defects ◽  
Lift Off

The uneven surface of the weld seam makes eddy current testing more susceptible to the lift-off effect of the probe. Therefore, the defect of carbon steel plate welds has always been a difficult problem in eddy current testing. This study aimed to design a new type of eddy current orthogonal axial probe and establish the finite element simulation model of the probe. The effect of the probe structure, coil turns, and coil size on the detection sensitivity was simulated. Further, a designed orthogonal axial probe was used to conduct a systematic experiment on the weld of carbon steel specimens, and the 0.2 mm width and 1 mm depth of weld defects of carbon steel plates were effectively detected. The experimental results showed that the new orthogonal axial eddy current probe effectively suppressed the unevenness effect of the weld surface on the lift-off effect during the detection process.

scholarly journals Evaluation of Sensitivity of Remote Field Eddy Current Testing and Low-Frequency Eddy Current Testing for Inspecting Grooves of Metal Plate

2013 ◽  
Vol 54 (1) ◽  
pp. 90-95 ◽  
Author(s):  
Jing Wang ◽  
Noritaka Yusa ◽  
Hongliang Pan ◽  
Toshiyuki Takagi ◽  
Hidetoshi Hashizume
Keyword(s):  
Eddy Current ◽  
Low Frequency ◽  
Metal Plate ◽  
Eddy Current Testing ◽  
Current Testing
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