scholarly journals A Study on Induced Current Focusing Potential Drop (ICFPD) Technique. Examination of the Sizing Accuracy of Defects and Its Frequency Dependence.

1994 ◽  
Vol 43 (494) ◽  
pp. 1482-1488 ◽  
Author(s):  
Hoon KIM ◽  
Tetsuo SHOJI
Keyword(s):  
Frequency Dependence ◽  
Potential Drop ◽  
Induced Current ◽  
Current Focusing

Evaluation of Surface and Internal Defects of Railway Wheel using Induced Current Focusing Potential Drop

2006 ◽  
Vol 321-323 ◽  
pp. 1483-1486 ◽  
Author(s):  
Seok Jin Kwon ◽  
Dong Hyung Lee ◽  
Jung Won Seo ◽  
Chan Woo Lee
Keyword(s):  
Surface Defect ◽  
Surface Defects ◽  
Potential Drop ◽  
Internal Crack ◽  
Induced Current ◽  
Internal Defects ◽  
Railway Wheel ◽  
Current Focusing ◽  
Railway Wheels

In the present paper, the induced current focusing potential drop (ICFPD) technique is applied to the detection of surface and internal defects for railway wheels. To detect the defects for railway wheels, the sensors for ICFPD are optimized and the tests are carried out with respect to 4 surface defects and 3 internal defects each other. The results show that the surface defect of 0.5 mm and internal crack of 1.0 mm apart from surface of wheel tread could be detected by using this method. The ICFPD method is useful to detect the defect that initiated in the tread of railway wheels.

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