Frequency Dependent Model of Leakage Inductance for Magnetic Components [PDF]
, 2012 Theoretical methods for the calculation of winding losses with respect to frequency have been well documented, but the variation in leakage inductance of magnetic components due to frequency has been less well addressed. In this paper Dowell’s well-known
Wilcock, Reuben +5 more
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[Retracted] Nondestructive Testing of Coal Mine Wire Ropes Based on Magnetic Sensors
International Transactions on Electrical Energy Systems, Volume 2022, Issue 1, 2022., 2022 Safety is the first priority in production. The situation is complex in the deep underground of coal mines, and safety accidents often occur. Wire rope is a kind of safety device. With the help of wire rope, the safety of miners can be guaranteed to a certain extent. It is a very important tool for mining production.
Youliang Yuan +4 more
wiley +1 more source
The Research of 30 mm Detecting Distance of Testing Device for Wire Rope Based on Open Magnetizer
Applied Sciences, 2022 Wire rope will have defects such as local faults (LF) and loss of metal area (LMA) during the long-term using process. The nondestructive testing method of magnetic flux leakage (MFL) has been widely used in wire rope defect detection.
Mengqi Liu +6 more
doaj +1 more source
The Effects of Remanent Magnetization on Magnetic Flux Leakage Signals [PDF]
, 1995 The Magnetic Flux Leakage (MFL)Technique is the most commonly used technique to inspect large diameter transmission pipelines [1–5]. A typical MFL inspection system uses permanent magnets to apply an axially oriented magnetic field to the ferromagnetic ...
Davis, Richard +3 more
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Magnetic induction strength on surface of a ferro-medium circular cylinder
Theoretical and Applied Mechanics Letters, 2016 Based on the Ampere molecular current hypothesis and the Biot–Savart law, a magnetic model on the metal magnetic memory (MMM) testing of a specimen is proposed.
M. Jin
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An Online MFL Sensing Method for Steel Pipe Based on the Magnetic Guiding Effect
Sensors, 2017 In order to improve the sensitivity of online magnetic flux leakage (MFL) testing for steel pipe, a sensing method based on the magnetic guiding effect is proposed and investigated in this paper.
Jianbo Wu +5 more
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Magnetic Flux Leakage Course of Inner Defects and Its Detectable Depth
Chinese Journal of Mechanical Engineering, 2021 As a promising non-destructive testing (NDT) method, magnetic flux leakage (MFL) testing has been widely used for steel structure inspection. However, MFL testing still faces a great challenge to detect inner defects.
Jianbo Wu +3 more
doaj +1 more source
Composite excitation multi-extension direction defect magnetic flux leakage detection technology
Journal of Measurement Science and Instrumentation, 2022 In the traditional pipeline magnetic flux leakage (MFL) detection technology, circumferential or axial excitation is mainly used to excite the magnetic field of defects.
WEI Minghui +5 more
doaj
Adaptive Filtering Method of MFL Signal on Rail Top Surface Defect Detection
IEEE Access, 2021 Magnetic flux leakage (MFL) detection technology provides an effective method to conduct high-speed detection of the damage suffered by rail surface.
Kailun Ji +4 more
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Phase-Extraction-Based MFL Testing for Subsurface Defect in Ferromagnetic Steel Plate
Sensors, 2022 Magnetic flux leakage (MFL) based on phase extraction for detecting the subsurface defects in ferromagnetic steel plate was investigated. The relationship between electromagnetic field phase and the subsurface defect was analyzed.
Chengjian Ma, Yang Liu, Changyu Shen
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