Results 121 to 130 of about 392 (157)

Non-destructive Inspection of Pipeline by Magnetic Flux Leakage (MFL) Method

Proceedings in Technology Transfer
Hong Quang Pham, Minh Hung Vu, Tran Quang Hung   +2 more
exaly   +2 more sources

Magnetic flux leakage (MFL) for the non-destructive evaluation of pre-stressed concrete structures

2010
Hans-Joachim Krause
exaly   +2 more sources

The interaction of multiple magnetic circuits in magnetic flux leakage (MFL) inspection

2014 IEEE Far East Forum on Nondestructive Evaluation/Testing, 2014
In this paper, a multi-magnetizer comprise of three units was introduced, of this multi-magnetizer, permanent magnet, poke, brush, and pipeline form a closed magnetic circuit in each unit, and each unite can be adjusted relative angle to meet the requirement for detection of pipes with different size. The investigation focuses on the interaction due to
null Gao Ting-yan, null Yu Yong-liang, null Han Tian-yu, null Wang bo   +3 more
openaire   +1 more source

Surface Crack Size Estimation Based on Quantification and Decoupling of Magnetic Flux Leakage (MFL) Signals of Circular Array Sensors

IEEE Sensors Journal
Muhammad Firdaus Akbar, Ghassan Nihad Jawad   +1 more
exaly   +2 more sources

Simulation of magnetic flux leakage (MFL) analysis using FEMM software

2010 IEEE Symposium on Industrial Electronics and Applications (ISIEA), 2010
Magnetic flux leakage (MFL) is a method used in oil and gas piping systems which has potential in medical gas piping inspection, cleaning and gauging tasks without interrupting the pipeline transportation process. MFL is a magnetic method of nondestructive testing that applies a magnet to magnetize the steel.
Zulkarnay Zakaria, Muhammad Saiful Badri Mansor, Aishah Hartini Jahidin, Mohd Shuhanaz Zanar Azlan, Ruzairi Abdul Rahim   +4 more
openaire   +1 more source

Electromagnetic methods for detecting corrosion in underground pipelines: magnetic flux leakage (MFL)

2014
exaly   +2 more sources

Improving Pipeline Magnetic Flux Leakage (MFL) Detection Performance With Mixed Attention Mechanisms (AMs) and Deep Residual Shrinkage Networks (DRSNs)

IEEE Sensors Journal
Yuchen Bian
exaly   +2 more sources

A Defect Evaluation Methodology Based on Multiple Magnetic Flux Leakage (MFL) Testing Signal Eigenvalues

Research in Nondestructive Evaluation, 2015
This article is based on the associated linearity of magnetic flux leakage signal eigenvalues and detection status information, proposing a methodology that applies multiple magnetic flux leakage signal eigenvalues to evaluate defects and goes a step further in conforming the limitation of the traditional evaluation system, which merely uses signal ...
Yanhua Sun, Shiwei Liu, Zhijian Ye, Shaobo Chen, Qian Zhou   +4 more
openaire   +1 more source

Investigation of the Criticality of Flux Leakage of a Magnetizer Assembly of a MFL Tool for Oil and Gas Pipelines Inspection

2020
Almost all pipelines need constant monitoring and frequent inspections. This paper presents the design of a magnetizer assembly and experimental simulation investigation of flux leakage. The simulations carried out in a well known multiphysics software to get insights for the designed magnetizer assembly based MFL tool.
Surya Prakash, Bhuvanesh Kumar Sharma, Chandra Prakash, Shubham Saini, null Vikas, Ankur Sharma   +5 more
openaire   +1 more source

Enhancing Results of Ultra-High-Resolution Axial Magnetic Flux Leakage (MFL-A Ultra) Inspection Data Utilizing Finite-Element Modeling (FEM) Simulations

Volume 2: Pipeline and Facilities Integrity, 2022
Abstract The standard evaluation methods for MFL-A inspections are based on simple calibration approaches that lead to stable results as long as the corrosion tends to be isolated and shallow. This paper presents a method suitable for complex and deep corrosion that utilizes FEM simulations on ultra-high resolution MFL-A data.
Edgar Schneider, Johannes Spille, Jeff Fleming, Ziad Saad, Kevin Siggers   +4 more
openaire   +1 more source