scholarly journals Research on Recognition Algorithm of Offshore Oil Pipeline Defect Inspection Based on Magnetic Flux Leakage Method

2005 ◽  
Vol 48 (4) ◽  
pp. 243-249 ◽  
Author(s):  
Tao Jin ◽  
Peiwen Que ◽  
Liang Chen ◽  
Tianlu Chen ◽  
Liang Li
Keyword(s):  
Magnetic Flux ◽  
Recognition Algorithm ◽  
Magnetic Flux Leakage ◽  
Defect Inspection ◽  
Oil Pipeline ◽  
Offshore Oil ◽  
Flux Leakage

Numerical Simulation on Low-Speed Magnetic Flux Leakage Inspection to Heat Exchanger Pipes

2011 ◽  
Vol 314-316 ◽  
pp. 355-358
Author(s):  
Min Zhang ◽  
Li Jun Wang ◽  
Chun Fei Guo
Keyword(s):  
Numerical Simulation ◽  
Heat Exchanger ◽  
Magnetic Flux ◽  
Magnetic Flux Leakage ◽  
Theoretical Principle ◽  
Defect Inspection ◽  
Defect Depth ◽  
Low Speed ◽  
Monitoring Area ◽  
Flux Leakage

Numerical simulation on low-speed magnetic flux leakage inspection to heat exchanger pipes is described. Statistics suggest that 90% of defects in ferromagnetic heat exchanger pipes occur under the retaining plate or nearby, making it a key monitoring area. This paper illustrates influence of different velocities, defect depth and position on the characteristic of flux leakage signals. Result of the numerical simulation provides theoretical principle for application of Magnetic flux leakage (MFL) technique to inspection of heat exchanger pipes. It possesses great significance to enhance the possibility for defect inspection as well.

Sign in / Sign up

Export Citation Format

Share Document