Results 71 to 80 of about 4,730,238 (111)

Effects of Magnetic Concentrator on MFL Signals Using FEA

, 2011
Magnetic flux leakage (MFL) is a non-destructive testing method used to inspect ferrous materials. However, there are a variety of factors that can affect the MFL inspection tool’s ability to detect and characterize anomalies. MFL signals obtained during
Qiang Song
core   +1 more source

Omnidirectional crack detection in welded structures using a Rotating Three-Pole Magnetization system with a flexible coil array sensor

Journal of Science: Advanced Materials and Devices
This study introduces a novel Alternating Current Field Measurement (ACFM) probe based on a Rotating Three-Pole Magnetization (RTPM) configuration integrated with a flexible magnetic coil array sensor. Conventional Eddy Current Testing (ECT) and Magnetic
Tran Thi Hoai Dung, Le Quang Trung, Nguyen Duc Khuong, Tran Mach Tuan Kiet, Honoka Fukuda, Naoya Kasai, Kouichi Sekino   +6 more
doaj   +1 more source

A genetic algorithm with tabu search method for 3 dimensional detect profile reconstruction using MFL measurement

Scientific Reports
In nondestructive testing, magnetic flux leakage (MFL) inspection is extensively employed for the inversion of pipeline defects. Exact reconstruction of the defect plane with measurements is a pressing issue in the field of MFL detection.
Yusong Gao, Senxiang Lu, Yuchen Yan
doaj   +1 more source

Pulsed magnetic flux leakage method for hairline crack detection and characterization

AIP Advances, 2018
The Magnetic Flux leakage (MFL) method is a well-established branch of electromagnetic Non-Destructive Testing (NDT), extensively used for evaluating defects both on the surface and far-surface of pipeline structures.
Chukwunonso K. Okolo, Turgut Meydan
doaj   +1 more source

Quantitative Nondestructive Testing of Wire Rope Using Image Super-Resolution Method and AdaBoost Classifier

Shock and Vibration, 2019
Magnetic flux leakage (MFL) detection is commonly employed to detect wire rope defects. However, nondestructive testing (NDT) of a wire rope still has problems.
Jigang Li, Juwei Zhang
doaj   +1 more source

Literature Review: Theory and Application of In-Line Inspection Technologies for Oil and Gas Pipeline Girth Weld Defection

Sensors, 2016
Girth weld cracking is one of the main failure modes in oil and gas pipelines; girth weld cracking inspection has great economic and social significance for the intrinsic safety of pipelines.
Qingshan Feng, Rui Li, Baohua Nie, Shucong Liu, Lianyu Zhao, Hong Zhang   +5 more
doaj   +1 more source

The MFL Testing Methods for Welded Pipes

Journal of Measurement Science and Instrumentation, 2011
Steel pipes are categorized into seamless pipes and welded pipes,and particularly the welded pipes’ NDT（Non-Destructive Testing）has been a challenging problem.In the case,on the basis of the presentation of welded pipes,the analysis of its relevant ...
Yan-hua SUN, Jian-bo WU, Yi-hua KANG
doaj  

Experimental Low-Cost Magnetic Scanning for Non-Destructive Testing With Hall Sensors: Determining Material’s Thickness

IEEE Access
Non-destructive testing (NDT) is a highly regarded area on the medical, space and defense sectors but, also on heavy equipment susceptible to corrosion and hidden structural defects.
Vlad Marsic, Petar Igic, Vartika Pandey, Wenzhi Zhou, Soroush Faramehr   +4 more
doaj   +1 more source

Evolution Mechanism and High-Precision Quantitative Identification of MFL Signals from Defects Under Supersaturated Magnetization Conditions

Sensors
Magnetic flux leakage (MFL) testing is a critical non-destructive testing (NDT) method for ensuring the safety of ferromagnetic storage and transportation equipment.
Huiqi Zou, Jiuxin Wang, Qi Dong, Dingze Lu, Yurong Du, Yaoheng Su   +5 more
doaj   +1 more source

Magnetic Non-Destructive Evaluation of Reinforced Concrete Structures—Methodology, System, and Identification Results

Applied Sciences
This paper aims to present a non-destructive magnetic method developed for simultaneously identifying key parameters in reinforced concrete (RC) structures.
Paweł Karol Frankowski, Piotr Majzner, Marcin Mąka, Tomasz Stawicki, Tomasz Chady   +4 more
doaj   +1 more source