Results 11 to 20 of about 3,991,060 (277)
Influence of Specimen Velocity on the Leakage Signal in Magnetic Flux Leakage Type Nondestructive Testing [PDF]
Journal of Nondestructive Evaluation, 2015 We investigate the influence of the specimen velocity on the magnetic flux leakage with the aim of selecting the optimum sensor locations. Parametric numerical simulations where the specimen velocity was in the range [0.1-20] m$\cdot$s$^{-1}$ were carried out.
Zhang, Lintao +5 more
openaire +5 more sources
The effects of remanent magnetization on magnetic flux leakage signals [PDF]
NDT & E International, 1997 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 pipe material.
Nestleroth, J. Bruce, Davis, Richard
core +5 more sources
Miniature mobile sensor platforms for condition monitoring of structures [PDF]
, 2009 In this paper, a wireless, multisensor inspection system for nondestructive evaluation (NDE) of materials is described. The sensor configuration enables two inspection modes-magnetic (flux leakage and eddy current) and noncontact ultrasound.
Chan, C.C. +6 more
core +4 more sources
Open magnetic flux and magnetic flux closure during sawtooth events [PDF]
, 2008 We use IMAGE-FUV observations of the polar aurora and measurements of the ionospheric convection from the SuperDARN radar network to study several sawtooth events previously reported in the literature.
Hubert, B. +4 more
core +6 more sources
Damage identification of broken wires inside and outside the wire rope
Gong-kuang zidonghua, 2021 The wire rope broken wire damage detection is mainly focused on the outside broken wire damage detection, not on the inside broken wire damage detection. Moreover, the inside and outside broken wire identification accuracy is not high.
DOU Liancheng, ZHAN Weixia, BAI Xiaorui
doaj +1 more source
Low Frequency Electromagnetic Field Detection and its Signal Processing System
Journal of Harbin University of Science and Technology, 2022 Ferromagnetic substrates of pressure equipment such as boilers， pressure vessels and high-pressure pipes are easy to be corroded， resulting in huge potential safety hazard.
SHEN Chang-yu +4 more
doaj +1 more source
Gong-kuang zidonghua, 2022 The signal of small defects in steel wire rope is often submerged in wave noise. Therefore, it is difficult to detect small defects in wire rope and easy to miss detection.
ZHONG Xiaoyong +2 more
doaj +1 more source
Sensors, 2023 In order to solve the problem of the quantification of detection signals in the magnetic flux leakage (MFL) of defective in-service oil and gas pipelines, a non-uniform magnetic charge model was established based on magnetic effects.
Bin Liu +5 more
doaj +1 more source
IEEE Access, 2023 The performance of Permanent Magnet Synchronous Machines (PMSMs) is significantly influenced by the temperature of the Permanent Magnets (PMs). Therefore, accurate knowledge of PM temperature is necessary for control and monitoring purposes.
Diego F. Laborda +5 more
doaj +1 more source
Sensors, 2021 Thanks to high sensitivity, excellent scalability, and low power consumption, magnetic tunnel junction (MTJ)-based tunnel magnetoresistance (TMR) sensors have been widely implemented in various industrial fields.
Zhenhu Jin +3 more
doaj +1 more source