测控技术2012，Vol.31Issue(2)：1-5,8,6.
管道裂纹远场涡流检测正演模型设计
Design on Forward Modeling of RFEC Inspection for Cracks
敖永才 1师奕兵 1王志刚 1李西风1
作者信息
- 1. 电子科技大学自动化工程学院,四川成都611731
- 折叠
摘要
Abstract
Being an inverse problem of electromagnetic fields, the quantitative inspection of pipeline cracks in remote field eddy current inspection ( RFECI) becomes an ill-posed problem for the lack of the prior constraints. The significant correlationship between the cracks and the features of the magnetic signals through the researches on the axisymmetric defects of the pipeline is demonstrated. A forward modeling, which can quantitatively map the pipeline defects to the features of the magnetic signals, based on back-propagation neural network (BPNN) is proposed. The high approximation accuracy and the good generalization ability of the forward modeling mean the effective prior knowledge and constraints for the quantitative inverse of the pipeline defects.关键词
裂纹/远场涡流/正演模型/定量反演Key words
cracks/ remote field eddy current/ forward modeling/ quantitative inverse分类
信息技术与安全科学引用本文复制引用
敖永才,师奕兵,王志刚,李西风..管道裂纹远场涡流检测正演模型设计[J].测控技术,2012,31(2):1-5,8,6.
