Results 21 to 30 of about 43,115 (288)

Dual Loop Reactive Shield Application of Wireless Power Transfer System for Leakage Magnetic Field Reduction and Efficiency Enhancement

open access: yesIEEE Access, 2021
The wireless power transfer (WPT) system generates a high density leakage electromagnetic field (EMF) during its operation. Exposure to leakage EMF has adverse effects on human health. In order to reduce the leakage EMF, a shielding method can be applied
Jedok Kim, Seungyoung Ahn
doaj   +3 more sources

Evaluation of the Magnetic Field Leakage from Two Wireless Power Transfer Systems for EV/PHV Driven Simultaneously [PDF]

open access: yesWorld Electric Vehicle Journal, 2019
Wireless power transfer for electric and plug-in hybrid vehicles has been developed to facilitate battery charging. In a wireless power transfer system, because the magnetic field leaks to the surroundings of the vehicle, it is important to evaluate the ...
Toshiaki Watanabe, Yusuke Hakuta
doaj   +3 more sources

Self-magnetic-leakage field detection using magneto-optical sensor technique

open access: yesMATEC Web of Conferences, 2014
Measurement of spontaneous magnetic stray field signals has been reported to be a promising tool for capturing macro-scale information of deformation states, defects and stress concentration zones in a material structure.
Stegemann Robert   +3 more
doaj   +2 more sources

Theory and Application of Magnetic Flux Leakage Pipeline Detection

open access: yesSensors, 2015
Magnetic flux leakage (MFL) detection is one of the most popular methods of pipeline inspection. It is a nondestructive testing technique which uses magnetic sensitive sensors to detect the magnetic leakage field of defects on both the internal and ...
Yan Shi   +4 more
doaj   +2 more sources

Application of the magnetic leakage field method to investigate wire strands

open access: yes, 2018
The magnetic leakage measurement method is useful for the nondestructive investigation of the integrity of tendons used in prestressed concrete components [1, 2]. It is based on the fact that ruptures or sudden changes in the cross sections of prestressing steel can be detected by characteristic magnetic anomalies.
Michael Schreiner, Frank Lehmann
openaire   +3 more sources

A blade-free DC septum magnet with low leakage field

open access: yesNuclear Engineering and Technology
Septum magnet is a critical component in storage ring injection and extraction systems. The key issue is minimizing the leakage field while keeping the septum blade as thin as possible.
Wenjing Fang   +3 more
doaj   +2 more sources

Compact bunker shielding assessment for 1.5 T MR-Linac

open access: yesScientific Reports, 2022
This study evaluated the effect of the 1.5 T magnetic field of the magnetic resonance-guided linear accelerator (MR-Linac) on the radiation leakage doses penetrating the bunker radiation shielding wall.
Jiwon Sung   +4 more
doaj   +1 more source

Research on the Forward Solving Method of Defect Leakage Signal Based on the Non-Uniform Magnetic Charge Model

open access: yesSensors, 2023
Pipeline magnetic flux leakage inspection is widely used in the evaluation of material defect detection due to its advantages of having no coupling agent and easy implementation.
Pengfei Gao   +3 more
doaj   +1 more source

Quantitative Detection of Tank Floor Defects by Pseudo-Color Imaging of Three-Dimensional Magnetic Flux Leakage Signals

open access: yesSensors, 2023
Highly integrated three-dimensional magnetic sensors have just been developed and have been used in some fields, such as angle measurement of moving objects.
Zhijun Yang   +6 more
doaj   +1 more source

Calculation and simulation research on leakage magnetic field of broken wire damage of wire rope

open access: yesGong-kuang zidonghua, 2020
In view of problems that states and characteristics of wire rope defects are random, and it is too difficult to physically calculate the damage of different forms of wire rope, two-dimensional magnetic load model is used to analyze leakage magnetic field
DOU Liancheng, ZHAN Weixia
doaj   +1 more source

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