Results 291 to 300 of about 219,781 (336)

Investigation of the flux leakage effects in transverse-flux magnetic gear

2017 20th International Conference on Electrical Machines and Systems (ICEMS), 2017
The purpose of this paper is to investigate the flux leakage effects in the transverse-flux magnetic gear (MG), in which two typical flux leakage phenomena are identified and analyzed, namely, end leakage and fringing leakage. By using the JMAG 12.1 software, the three-dimensional finite element analysis (3D-FEA) modeling surrounded by some blocks with
Xianglin Li, Shengwei Liu, Yubin Wang, Ying Fan   +3 more
openaire   +1 more source

Magnet leakage flux of axial flux PM synchronous machines for EV

2014 IEEE International Electric Vehicle Conference (IEVC), 2014
This paper presents the study of an axial flux permanent magnet synchronous machine specially designed for electric vehicle (EV) applications. Based on the analysis of the physical machine a 3D simulation model is created. The goal of the simulations is to investigate the influence of certain input design parameters on the machine's PM leakage flux ...
Gergely Mate Kiss, Istvan Vajda
openaire   +1 more source

The Effects of Magnetizer Velocity on Magnetic Flux Leakage Signals

1993
In many magnetic flux leakage applications, the nondestructive inspection constraints suggest the use of high inspection velocities. However, high inspection velocities can compromise the ability to detect and characterize defects. In general, velocity effects can be detected at speeds exceeding a few miles per hour [1].
Nestleroth, J. Bruce, Davis, Richard
openaire   +2 more sources

Magnetic Flux Leakage Capabilities and Data Interpretation

CORROSION 1991, 1991
Abstract Magnetic flux leakage principles for ILI is still the method of choice for inspection for both inspection companies and end users. Evaluation of this phenomenon will include an examination of the types of anomalies MFL will detect, its limitations and the data currently available from inspection surveys. Detection
openaire   +1 more source

Leakage flux modelling in magnetic fluids test bench

2016 IEEE International Conference on Advanced Intelligent Mechatronics (AIM), 2016
The proposed paper discusses a new methodology to monitor the B-H curve of magnetic fluids, which have low relative permeability. The set-up consists of a magnetic circuit which encloses a sample. A first coil allows creating a magnetic field into the sample whereas a second one measures the flux density.
C. Cuchet, C. Espanet, Y. Civet, S. Biwersi, Y. Perriard   +4 more
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Pulsed magnetic flux leakage sensor systems and applications

2011 IEEE International Instrumentation and Measurement Technology Conference, 2011
Pulsed magnetic flux leakage (PMFL) technology shows potential advantages in the detection of corrosion, cracks and other defects of ferromagnetic plates or pipeline. A PMFL sensor with new structure is proposed based on the simulation for a variety of different structure sensors. It reduces the magnetic field compression of the background noise to the
Tao Zhang, Guiyun Tian, Xianzhang Zuo
openaire   +1 more source

Leakage-flux suppression in magnetic air breakers

Electrical Engineering, 1958
THE MAGNETIC AIR CIRCUIT BREAKER, during the past two decades, has become a most effective and widely used circuit-interrupting device. The need for increased ratings in magnetic air circuit breakers has required critical studies of and improvements in the various factors involved in the interrupting process in these devices.
openaire   +1 more source

Defect separation considerations in magnetic flux leakage inspection

Insight - Non-Destructive Testing and Condition Monitoring, 2005
The magnetic flux leakage (MFL) method is used for assessing the corrosion integrity of oil and gas pipelines. The interpretation of defect-induced magnetic signals has to take into account the inspection tool and pipeline steel characteristics. The MFL signals are very sensitive to the stress state and magnetisation level of the specimen. The presence
C Mandache, B Shiari, L Clapham
openaire   +1 more source

Defect-depth-field algorithm for simulating magnetic flux leakage signals based on discrete magnetic dipole model

NDT & E International, 2023
Shizhong Zhang, Hongmei Li, Chuntian Zhao   +2 more
semanticscholar   +1 more source

Development of a convolutional neural network model to predict the size and location of corrosion defects on pipelines based on magnetic flux leakage signals

International Journal of Pressure Vessels and Piping, 2023
Y. Shen, W. Zhou
semanticscholar   +1 more source