Results 221 to 230 of about 8,324 (257)

Magnetic-Charge Element Method for Magnetic Flux Leakage Inspection

IEEE Transactions on Instrumentation and Measurement, 2022
Shizhong Zhang, Hongmei Li, Chuntian Zhao   +2 more
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Magnetic Flux Leakage Testing for Defect Characterization

2016
As a further study on the low-level magnetized magnetic flux leakage testing, numerical simulations and measurements were conducted to investigate the influence of liftoff variation, applicability of the approach to local thinning and material characterization.
Cheng Weiying, Kamiyama Yoshinori, Tsukada Keiji   +2 more
openaire   +1 more source

Leakage Flux of the Trans-Rotary Magnetic Gear

IEEE Transactions on Magnetics, 2019
This paper investigates the leakage flux of the trans-rotary magnetic gear (TROMAG). TROMAG is a magnetic gear that converts a high-force low-speed linear motion to a low-torque high-speed rotation and vice versa. TROMAG is tailored to force-intensive linear motion applications such as backpack energy harvesting and artificial heart in which the gear ...
Kurt N. Jenney, Siavash Pakdelian
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Calculating on Permanent Magnet with Distributing Leakage Flux

2011
Leakage magnetic flux is not ignoring in the course of calculating magnetic circuit. The permanent magnet with distributing leakage flux is decomposed into a series of magnetic circuit with lumped parameters in this paper. The universal calculating formulae for magnetic circuit with distributing leakage flux are derived.
Liu Lingshun, Shi Xianjun, null WangDong
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Importance of Magnetizing Field on Magnetic Flux Leakage Signal of Defects

IEEE Transactions on Magnetics, 2018
The measurement of magnetic flux leakage (MFL) is widely used as a non-destructive technique for inspecting oil and gas pipelines. In this method, many factors can affect the MFL signal, but the magnetization of the pipeline is a fundamental issue that bears consideration.
Hong Quang Pham, Quang Trung Trinh, Duy Tuan Doan, Quang Hung Tran   +3 more
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Horn speaker with reduced magnetic flux leakage

The Journal of the Acoustical Society of America, 1986
By adding a secondary magnetic piece with a partially open magnetic circuit to the front surface of a yoke connected to a primary magnetic piece, the magnetic flux leakage from the main magnetic piece is reduced on one hand and the magnetic flux extending across a magnetic gap is intensified through formation of a favorable magnetic field.
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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
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Numerical Simulation and Analysis on Magnetizing Exciter for Magnetic Flux Leakage

Key Engineering Materials, 2011
Magnetic flux leakage (MFL) is a non-destructive testing method used to inspect the pipe and magnetization of the pipe wall to saturation is essential for anomalies to be reliably and accurately detected and characterized. Axial components of magnetic flux density obtained during the MFL inspection have been simulated using three-dimensional finite ...
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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.
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Magnetizer design of circumferential magnetic flux leakage inspection in pipeline

2010 International Conference on Computer Application and System Modeling (ICCASM 2010), 2010
In order to reasonably design magnetizer of circumferential magnetic flux leakage inspection in pipeline, the magnetizer structure that has the circular geometry of quadrupole separation is proposed which meets engineering design requirements with the analysison and comparison of the finite element simulation.
openaire   +1 more source