The modeling and optimization of parameters MFL transducers

摘要

The paper deals with the optimization of the magnetic transducers implementing MFL technology, using the finite element method. The physical and mathematical models, optimization criteria, and the main results of the calculations, development and testing of transducers to control pitting corrosion damage in oil & gas facilities, for example, is considered. Magnetic Flux Leakage (MFL) Technology is widely applied by leading companies such as Silverwing, Rosen, NDT Technologies, etc., making the equipment for the identification of: 1. corrosion wall damage (pittings or planes) in products made from ferrous metals, mainly pipelines and the bottoms of cylindrical tanks (oil storage, for example); 2. mechanical damage (longitudinal or cross gaps or cracks with big disclosure) seamless and welded pipes, including thick-walled; 3. defects it longitudinal welded seams of pipes.