Open AccessFast reconstruction of defect profiles from magnetic flux leakage measurements using a RBFNN based error adjustment methodology
Author(s) -
Feng Jian,
Li Fangming,
Lu Senxiang,
Liu Jinhai
Publication year - 2017
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2016.0279
Subject(s) - magnetic flux leakage , leakage (economics) , convergence (economics) , computer science , artificial neural network , algorithm , artificial intelligence , magnetic field , physics , quantum mechanics , economics , macroeconomics , economic growth
Magnetic flux leakage (MFL) inspection is one of the most commonly used electromagnetic in‐line inspection methods for detecting anomalies due to corrosion in the underground pipelines. An effective defect reconstruction method is very important for MFL detection. This study proposes a fast radial basis function neural network (RBFNN) based error adjustment (EA) methodology to reconstruct the defect profiles from MFL measurements. In the proposed model, the defect profile is updated according to the difference between the estimated and actual signals. The specific updating scheme is determined by the well trained RBFNN according to the difference. This profile updating strategy ensures that this method can approximate the actual profile faster than other methods. The effectiveness of the proposed algorithm is demonstrated by simulation and experimental data under various conditions. The results demonstrate that the proposed model exhibits faster convergence performance in a robust and stable manner while maintaining good reconstruction accuracy.