Results 1 to 10 of about 8,389,242 (242)

Minimizing Leakage Magnetic Field of Wireless Power Transfer Systems Using Phase Difference Control

Energies, 2022
In this paper, we propose a method to reduce the leakage magnetic field from wireless power transfer (WPT) systems with series–series compensation topology by adjusting the phase difference between the transmitter (TX) coil current and the receiver (RX ...
Seongho Woo, Yujun Shin, Changmin Lee, Jaewon Rhee, Jangyong Ahn, Jungick Moon, Seokhyeon Son, Sanguk Lee, Hongseok Kim, Seungyoung Ahn   +9 more
doaj   +3 more sources

A Magnetic Field Concentration Method for Magnetic Flux Leakage Detection of Rail-Top Surface Cracks

IEEE Access
Magnetic Field Leakage (MFL) is one of the prominent methods used to detect rail top surface cracks. However, it has been shown that detecting narrow rail top cracks is a major challenge because of their weak magnetic leakage fields.
Wendong Gong, Muhammad Firdaus Akbar, Ghassan Nihad Jawad, Nawaf H. M. M. Shrifan, Fengqin Zhang   +4 more
doaj   +3 more sources

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

IEEE 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

Excitation device for mining steel wire rope based on magnetic flux leakage detection

Gong-kuang zidonghua, 2023
The current research does not consider the influence of wire rope swing on the excitation device in the context of engineering applications, resulting in unsatisfactory detection results.
LI Jianhui, SUN Xianbin, LIU Lunming, CHEN Rongxin, ZHAN Weixia   +4 more
doaj   +1 more source

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

Sensors, 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, Hao Geng, Lijian Yang, Yuming Su   +3 more
doaj   +1 more source

Compact bunker shielding assessment for 1.5 T MR-Linac

Scientific 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, Yeonho Choi, Jun Won Kim, Ik Jae Lee, Ho Lee   +4 more
doaj   +1 more source

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

Sensors, 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, Jiang Yang, Huaiqing Cao, Han Sun, Yazhong Zhao, Bowen Zhang, Changpeng Meng   +6 more
doaj   +1 more source

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

Gong-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

Early fault diagnosis of transformer winding based on leakage magnetic field and DSAN learning method

Frontiers in Energy Research, 2023
Aiming at the problem of lack of training samples and low accuracy in transformer early winding fault diagnosis, this paper proposes a transformer early faults diagnosis method based on transfer learning and leakage magnetic field characteristic quantity.
Xiangli Deng, Zhan Zhang, Hongye Zhu, Kang Yan   +3 more
doaj   +1 more source

3‐D magnetic equivalent circuit model for a coreless axial flux permanent‐magnet synchronous generator

IET Electric Power Applications, 2021
In coreless axial flux permanent magnet synchronous generators (AFPMSGs), magnetic leakage and fringing effect is significant due to the large air gap and increases the difficulty in magnetic field calculation.
Yunpeng Zhang, Yiming Wang, Shuning Gao
doaj   +1 more source