Visualization of Magnetic Leakage Flux from a Cell Phone
نویسندگان
چکیده
منابع مشابه
Intelligent defect recognition from magnetic flux leakage inspection
THIS paper presents a new approach for detection of oil-gas pipeline corrosion defects in which pipeline magnetic flux leakage (MFL) detection system is adopted. To test the new approach, some artificial defects are simulated mathematically on the surface of oil-gas pipes to simulate different defects happening in practice. The interference eliminating method is introduced for compensation of d...
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On pipeline magnetic flux leakage (MFL) inspection, welds and debris are present in all pipelines and cause lift-off of the sensors and/or the magnetizer of the magnetic flux leakage inspection tool, and have the potential to affect the acquired magnetic flux leakage data. By adopting ANSYS software to simulate the effect of lift-off on the MFL signal. The results of this research indicate that...
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(1) A mathematical model of weldpool surface deformation and keyhole formation in PAW+TIG DSAW process is developed on the basis of magnetohydrodynamic theory and calculus of variations with considering all kinds of dynamic factors acting on the weldpool. (2) Welding current of PAW+TIG DSAW process flows in from the TIG bottom side of workpiece, along the keyhole and metal neighborhood and away...
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Since magnetism is strongly stress dependent, Magnetic Flux Leakage (MFL) inspection tools have the potential to locate and characterize mechanical damage in pipelines. However, MFL application to mechanical damage detection faces hurdles which make signal interpretation problematic: 1) the MFL signal is a superposition of geometrical and stress effects, 2) the stress distribution around a mech...
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ژورنال
عنوان ژورنال: Journal of the Magnetics Society of Japan
سال: 2006
ISSN: 0285-0192
DOI: 10.3379/jmsjmag.30.38