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Journal articles on the topic 'Eddi current'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Hobbins, Michael T., Andrew Wood, Daniel J. McEvoy, et al. "The Evaporative Demand Drought Index. Part I: Linking Drought Evolution to Variations in Evaporative Demand." Journal of Hydrometeorology 17, no. 6 (2016): 1745–61. http://dx.doi.org/10.1175/jhm-d-15-0121.1.

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Abstract Many operational drought indices focus primarily on precipitation and temperature when depicting hydroclimatic anomalies, and this perspective can be augmented by analyses and products that reflect the evaporative dynamics of drought. The linkage between atmospheric evaporative demand E0 and actual evapotranspiration (ET) is leveraged in a new drought index based solely on E0—the Evaporative Demand Drought Index (EDDI). EDDI measures the signal of drought through the response of E0 to surface drying anomalies that result from two distinct land surface–atmosphere interactions: 1) a com

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2

Hopt, Oliver, Claus-Peter Klas, and Alexander Mühlbauer. "Flexible DDI storage." IASSIST Quarterly 42, no. 2 (2018): 1–12. http://dx.doi.org/10.29173/iq923.

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The current usage of DDI is heterogeneous. It varies over different versions of DDI, different grouping, and unequal interpretation of elements. Therefore, provider of services based on DDI implement complex database models for each developed application, resulting in high costs and application specific and non-reusable models. This paper shows a way to model the binding of DDI to applications in a way that it works independent of most version changes and interpretative differences in a standard like DDI without continuous reimplementation. Based on our DDI-FlatDB approach, shown first a

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3

González, Manuel I. "Experiments with eddy currents: the eddy current brake." European Journal of Physics 25, no. 4 (2004): 463–68. http://dx.doi.org/10.1088/0143-0807/25/4/001.

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4

Locci, N., and C. Muscas. "Hysteresis and eddy currents compensation in current transformers." IEEE Transactions on Power Delivery 16, no. 2 (2001): 154–59. http://dx.doi.org/10.1109/61.915475.

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5

Simm, A., and G. Y. Tian. "EDDY CURRENTS: Investigation of directional eddy current complex measurements for defect mapping." Insight - Non-Destructive Testing and Condition Monitoring 52, no. 6 (2010): 320–25. http://dx.doi.org/10.1784/insi.2010.52.6.320.

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6

Mahariq, Ibrahim, Svetlana Beryozkina, Huda Mohammed, and Hamza Kurt. "On the Eddy Current Losses in Metallic Towers." International Journal of Renewable Energy Development 9, no. 1 (2020): 1–6. http://dx.doi.org/10.14710/ijred.9.1.1-6.

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The existence of magnetic field around high-voltage overhead transmission lines or low-voltage distribution lines is a known fact and well-studied in the literature. However, the interaction of this magnetic field either with transmission or distribution towers has not been investigated. Noteworthy it is to remember that this field is time-varying with a frequency of 50 Hz or 60 Hz depending on the country. In this paper, we studied for the first time the eddy currents in towers which are made of metals. As the geometrical structures of towers are extremely complex to model, we provide a simpl

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7

S., Goolak, Riabov Ie., Tkachenko V., Sapronova S., and Rubanik I. "Model of pulsating current traction motor taking into consideration magnetic losses in steel." Electrical Engineering & Electromechanics, no. 6 (December 3, 2021): 11–17. https://doi.org/10.20998/2074-272X.2021.6.02.

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<em>The <strong>aim</strong> of the work is to develop a mathematical model of the traction motor of the pulsating current of an electric locomotive taking into account the magnetic losses in the motor steel to determine the starting parameters depending on the voltage of the armature winding.<strong> Methodology</strong>. Mathematical modeling of electromagnetic processes in a traction motor of pulsating current is applied taking into account the nonlinear nature of the armature inductance, the inductance of the excitation winding and the nonlinear nature of the universal magne

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8

Misirlic-Dencic, Sonja, Jelena Poljarevic, Andjelka M. Isakovic, Tibor Sabo, Ivanka Markovic, and Vladimir Trajkovic. "Current Development of Metal Complexes with Diamine Ligands as Potential Anticancer Agents." Current Medicinal Chemistry 27, no. 3 (2020): 380–410. http://dx.doi.org/10.2174/0929867325666181031114306.

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Background:: The discovery of cisplatin and the subsequent research revealed the importance of dinitrogen-containing moiety for the anticancer action of metal complexes. Moreover, certain diamine ligands alone display cytotoxicity that contributes to the overall activity of corresponding complexes. Objective:: To summarize the current knowledge on the anticancer efficacy, selectivity, and the mechanisms of action of metal complexes with various types of diamine ligands. Method:: The contribution of aliphatic acyclic, aliphatic cyclic, and aromatic diamine ligands to the anticancer activity and

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9

Zhang, X. Z., and Y. P. Huang. "Defect Detection of Carbon Fiber Composite by Eddy Current Sensor." International Journal of Materials Science and Engineering 7, no. 4 (2019): 96–101. http://dx.doi.org/10.17706/ijmse.2019.7.4.96-101.

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10

Zagidulin, R. V., A. T. Bakiev, and A. R. Baykova. "ON THE ISSUE OF MUTUAL INFLUENCE OF PROBES IN A MULTIPLE-UNIT (MATRIX) SURFACE EDDY CURRENT PROBE." Kontrol'. Diagnostika, no. 323 (May 2025): 4–15. https://doi.org/10.14489/td.2025.05.pp.004-015.

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The distribution of eddy currents induced in metal by a surface multiple-unit eddy current probe (ECP) is investigated. A mathematical formula is derived to calculate the increment in the magnetic moment of the eddy currents within the metal, accounting for the mutual interactions and orientation of the individual eddy current probes within the ECP array. The results indicate that the increment in the magnetic moment of the eddy currents increases monotonically as the spacing between the probes in the ECP array decreases, while the sign of the magnetic moment increment is determined by the pha

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11

Mufti, Reza Aulia Putra, Nizam Muhammad, and Danardono Dwi Prija Tjahjana Dominicus. "Design of eddy current brake for electric motorcycle braking system." International Journal of Power Electronics and Drive System (IJPEDS) 12, no. 1 (2021): 41–50. https://doi.org/10.11591/ijpeds.v12.i1.pp41-50.

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Braking systems in motor vehicles generally use a braking system that utilizes friction. The braking performance will decrease caused by using friction rapidly. To overcome this, as an alternative, an electromagnetic braking system can be used by utilizing eddy currents, such as eddy current brakes (ECB). Eddy currents are generated when the rotor pass the magnetic field of the electromagnet. The research aim is to design an ECB system. The performance of the disk design will be determined in this study. The study is about the tendency of the ECB properties. The finite element (FEM) method is

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12

Sukhanov, D. Ya, and K. V. Zav’yalova. "Magnetic Field of Conductive Objects as Superposition of Elementary Eddy Currents and Eddy Current Tomography." Russian Physics Journal 60, no. 11 (2018): 1880–87. http://dx.doi.org/10.1007/s11182-018-1297-6.

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13

Dziczkowski, Leszek, and Sławomir Zolkiewski. "Determination of the Penetration Depth of Eddy Currents in Defectoscopic Tests." Key Engineering Materials 588 (October 2013): 64–73. http://dx.doi.org/10.4028/www.scientific.net/kem.588.64.

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In the defectoscopic tests by means of the eddy currents method only a certain superficial layer of the tested element is inspected. The reason of this phenomenon is connected with a very important feature of the eddy currents. The induced eddy currents generate its own magnetic field which obstructs penetration for the primary magnetic field. It is crucial to know the penetration depth of eddy currents. It allows planning successfully the diagnosis process. There are two cases worth mentioning: when the eddy current method is treated as the additional method complementary to the ultrasound me

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14

Malikov, V. N. "AUTOMATED CONTROL OFTHE THIN FILMS ELECTRICALCONDUCTIVITY BY THE EDDY CURRENT METHOD." Eurasian Physical Technical Journal 21, no. 1 (47) (2024): 74–83. http://dx.doi.org/10.31489/2024no1/74-83.

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The article considers the possibility of using the eddy current method of non-destructive testing for the problems of measuring the electrical conductivity of thin metal films. As the object of measurement, we used copper films of various thicknesses obtained by vacuum vapor deposition. A review of current trends in the use of copper films in modern industry and science is presented, and an analysis is made of current methods of non-destructive testing suitable for studying thin copper films. A brief description of the deposition method and the hardware-software complex for measuring the elect

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15

Inspectech. "Eddy current tester." NDT International 23, no. 1 (1990): 60. http://dx.doi.org/10.1016/0308-9126(90)91596-l.

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16

Inspectech. "Eddy current tester." NDT & E International 23, no. 1 (1990): 60. http://dx.doi.org/10.1016/0963-8695(90)90860-l.

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17

Wells Krautkramer. "Eddy current probes." NDT & E International 23, no. 2 (1990): 118–19. http://dx.doi.org/10.1016/0963-8695(90)91091-2.

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18

Hoffmann, B., R. Houbertz, and U. Hartmann. "Eddy current microscopy." Applied Physics A: Materials Science & Processing 66, no. 7 (1998): S409—S413. http://dx.doi.org/10.1007/s003390051173.

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19

Siviter, J. P. "Eddy current demonstration." Physics Education 27, no. 4 (1992): 230. http://dx.doi.org/10.1088/0031-9120/27/4/012.

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20

Wells Krautkramer. "Eddy current probes." NDT International 23, no. 2 (1990): 118–19. http://dx.doi.org/10.1016/0308-9126(90)91980-8.

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21

He, Ren, and Donghai Hu. "Physical Mechanism of Eddy Current Demagnetizing Effect for Eddy Current Brake." Journal of Computational and Theoretical Nanoscience 13, no. 10 (2016): 6810–22. http://dx.doi.org/10.1166/jctn.2016.5632.

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This article researches both the mathematical relation between the braking force of eddy current brake and the speed of the moving conductor and the relationship between the average air-gap flux density and the velocity of the moving conductor respectively which result in the ambiguity of the physical mechanism of eddy current demagnetizing effect. The theoretical methods for obtaining the distribution of the excitation magnetic field, the eddy current magnetic field and the air gap magnetic field of eddy current brake were presented. Then the impacts of the excitation magnetic field and eddy

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22

Anantha Krishna, G. L., and K. M. Sathish Kumar. "Investigation on Eddy Current Braking Systems – A Review." Applied Mechanics and Materials 592-594 (July 2014): 1089–93. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.1089.

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The changing magnetic field will induce eddy currents in the conductor. These currents will dissipate energy in the conductor and generate drag force. It is found that Aluminium is the best material as conductor compared to Copper and Zinc. Also, it is found that the larger thickness of disc, more number of turns of electromagnet and higher electrical conductivity of conductor influences the generation of greater braking torque. Conventional braking system relies on adhesion force between rail and wheel. It is found that a brake built up from permanent magnet pieces that combine both magnetic

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23

Xu, Zheng, Jiamin Wu, Lu Li, Yucheng He, Wei He, and Dengjie Yu. "Fast analytical calculation method for eddy current induced by gradient fields in an MRI system." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 36, no. 6 (2017): 1690–705. http://dx.doi.org/10.1108/compel-12-2016-0566.

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Purpose Eddy currents are inevitable in magnetic resonance imaging (MRI) systems. These currents are mainly induced by gradient fields. This study aims to propose a fast analytical method to calculate eddy currents induced by frequently switching gradient fields in a traditional C-shape MRI system. Design/methodology/approach Fourier decomposition and magnetic vector potentials were used to calculate the eddy currents. Calculations with the proposed analytical method revealed the spatial distribution and temporal evolution of eddy currents. Findings Calculation and Maxwell simulation results w

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24

Chen, Guolong, and Zheng Cao. "Quantitative evaluation of eddy current distribution by relative entropy and cross entropy." Measurement and Control 54, no. 3-4 (2021): 164–69. http://dx.doi.org/10.1177/0020294020984201.

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Koch curve exciting coil of an eddy current probe can adjust the eddy current distributing in more directions at a small domain to enhance the sensitivity of eddy current probe for short defect detection. In this study, a relative entropy and a cross entropy of tangential intersection angle spectrum are proposed to evaluate the eddy current distributions in the different directions when the eddy current probe is positioned at different lift-off distances and excited by different exciting frequency alternative currents. The eddy current distributions induced by a circular and a fractal Koch cur

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25

Boussidi, Brahim, Clément Le Goff, Corentin Galard, Xavier Carton, and Sabrina Speich. "The Analysis of North Brazil Current Rings from Automatic Identification System Data and Altimetric Currents." Remote Sensing 16, no. 15 (2024): 2828. http://dx.doi.org/10.3390/rs16152828.

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This paper aims to analyze the North Brazil Current (NBC) rings during the initial 5 months of 2020 using surface currents derived from Automatic Identification System (AIS) data in comparison with altimetry-based Archiving, Validation and Interpretation of Satellite Oceanographic Data (AVISO) current fields. The region of NBC rings is characterized by relatively high marine traffic, facilitating an accurate current estimation. Our investigation primarily focused on a brief period coinciding with intensive in situ measurements (EUREC4A-OA experiment). The Angular Momentum Eddy Detection and tr

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26

Hilborn, Robert C. "Eddy currents." Physics Teacher 52, no. 4 (2014): 197. http://dx.doi.org/10.1119/1.4868926.

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27

Shkatov, Petr N., Gennady A. Didin, Dmitry E. Subbotin, and Andrey M. Kokurov. "Study of Interaction of Eddy Current Probes and Delamination in Multidirectional CFRP." Materials Science Forum 970 (September 2019): 305–13. http://dx.doi.org/10.4028/www.scientific.net/msf.970.305.

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This paper describes the physics of the interaction of the eddy current probe and the delamination in multidirectional carbon fiber reinforced polymer (CFDR). Currently, there is an opinion that eddy current signals obtained due to delamination in multidirectional CFRP are caused by the redistribution of the vertical eddy current arising from the excitation of eddy currents in the sample by a rectangular coil whose surface is orthogonal to the surface of the sample. The analysis performed by us shows that the possibility of creation and deformation of the vertical eddy current is very question

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28

Chen, Guolong. "Two Novel Information Entropy Indices for Analysis of the Eddy Current Distribution." Entropy 20, no. 9 (2018): 699. http://dx.doi.org/10.3390/e20090699.

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The Koch curve exciting coil eddy current sensor is a kind of novel flexible planar eddy current probe. In this study, an intersection angle spectrum entropy index and a radial direction energy spectrum entropy were proposed to evaluate the eddy current distribution. Eddy current distributions induced by one turn of a circular coil and one turn of a second order Koch curve coil feed with different exciting frequency alternative currents and at different lift-off distances, were simulated and the eddy current distributions varying with lift-off distance in different exciting frequencies were co

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29

Polański, Paweł, and Franciszek Szarkowski. "Simulations and Measurements of Eddy Current Magnetic Signatures." Zeszyty Naukowe Akademii Marynarki Wojennej 215, no. 4 (2018): 77–102. http://dx.doi.org/10.2478/sjpna-2018-0028.

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Abstract Eddy current magnetic signature is, together with magnetization of ferromagnetic hull, mechanisms and devices on board, corrosion related and stray field sources one of the main sources of ship’s magnetic signature. Due to roll, pitch and yaw of the ship in external magnetic field, eddy currents are induced in conducting materials on board ship, mainly in conducting hull. Flow of those currents is a source of magnetic field around a ship. Principal eddy current component is related to roll movement as it depends on rate of change of external field which is the highest for roll. Induce

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30

Vertiy, O. O., and V. M. Uchanin. "Three-dimensional visualization of the detected defects by eddy current computing tomography." Paton Welding Journal 2021, no. 9 (2021): 49–55. http://dx.doi.org/10.37434/tpwj2021.09.08.

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31

Dolinenko, V. V., E. V. Shapovalov, T. G. Skuba, et al. "Robotic system of non-destructive eddy-current testing of complex geometry products." Paton Welding Journal 2017, no. 6 (2017): 51–57. http://dx.doi.org/10.15407/tpwj2017.06.10.

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32

Hao Baiqiao, 郝柏桥, 范玉刚 Fan Yugang та 宋执环 Song Zhihuan. "基于深度迁移学习的脉冲涡流热成像裂纹缺陷检测". Acta Optica Sinica 43, № 4 (2023): 0415002. http://dx.doi.org/10.3788/aos221532.

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33

Uchanin, V. M., G. G. Lutcenko, and A. V. Opanasenko. "Automated EDDY current inspection systems with surface probe of double differential type." Paton Welding Journal 2023, no. 5 (2023): 48–56. http://dx.doi.org/10.37434/tpwj2023.05.08.

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34

Malikov, V. N. "EDDY CURRENT METHOD FOR STUDYING INHOMOGENEITIES AND DEFECTS IN THIN METAL FILMS." Eurasian Physical Technical Journal 20, no. 4 (46) (2023): 116–24. http://dx.doi.org/10.31489/2023no4/116-124.

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The variety of structure and specific properties associated with the small thickness of thin metal films lead to the fact that their physical characteristics differ significantly from the characteristics of the same materials in the bulk state. To determine the characteristics of thin metal films, the development of new non-destructive research methods is relevant. The article substantiates the advantages of the eddy current testing method for studying the surface of thin metal films of various metals. The design of a subminiature eddy current transducer designed to study the electrical conduc

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35

Ouamara, Daoud, and Frédéric Dubas. "Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis." Mathematical and Computational Applications 24, no. 3 (2019): 67. http://dx.doi.org/10.3390/mca24030067.

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Eddy-current analysis is an important research field. This phenomenon occurs in multiple areas and has several applications: electromagnetic braking, repulsive effects, levitation, etc. Thereby, this paper is limited to eddy-current study in rotating electrical machines. In the design process, if the permanent-magnet (PM) loss calculation is very important, the overheating due to eddy-currents must be taken into account. The content of this paper includes sources, calculation methods, reduction techniques, and thermal analysis of PM eddy-current losses. This review aims to act as a guide for t

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36

Tsuboi, Hajime, Kenichi Sue, and Katsumi Kunisue. "Eddy Current Analysis of Thin Conducting Plates Taking Account of Source Currents." IEEJ Transactions on Fundamentals and Materials 110, no. 9 (1990): 591–97. http://dx.doi.org/10.1541/ieejfms1990.110.9_591.

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37

Panas, S. M., and A. G. Papayiannakis. "Eddy currents in an infinite slab due to an elliptic current excitation." IEEE Transactions on Magnetics 27, no. 5 (1991): 4328–37. http://dx.doi.org/10.1109/20.105058.

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38

Fritz, W. "Eddy currents, current density and induction in slots with two parallel bars." European Transactions on Electrical Power 1, no. 6 (2007): 335–40. http://dx.doi.org/10.1002/etep.4450010607.

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39

Martono, Martono, Heru Santoso, Amalia Nurlatifah, and Mark Jayson Felix. "Trend of Halmahera Eddy and Mindanao Eddy." ILMU KELAUTAN: Indonesian Journal of Marine Sciences 29, no. 2 (2024): 261–72. http://dx.doi.org/10.14710/ik.ijms.29.2.261-272.

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Global warming, due to increasing greenhouse gases, has increased the frequency of El Niño Southern Oscillation events and influenced ocean dynamics. This research determined the trends of Mindanao Eddy’s and Halmahera Eddy’s over 28 years (1993–2020). The data used in this research consist of sea surface currents, surface wind, sea surface height, and NIŇO3.4 index. Determination of eddy currents was done using the Automated Eddies Detection method. The results showed that the Asian-Australian monsoon and El Niño Southern Oscillation events influence the characteristics of the Mindanao Eddy a

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40

Zagidulin, R. V., A. T. Bakiev, and A. R. Baykova. "THE STUDY OF THE EDDY CURRENT DISTRIBUTION AREA INDUCED BY SURFACE EDDY CURRENT PROBE IN MAIN GAS PIPELINE METAL HOT-DIP GALVANIZING UNITS." Kontrol'. Diagnostika, no. 321 (March 2025): 21–31. https://doi.org/10.14489/td.2025.03.pp.021-031.

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The distribution area of eddy currents induced on metallic surfaces by the alternating magnetic field of surface eddy current probes (ECPs) is investigated. Analytical calculations reveal that the effective eddy current distribution excited by surface ECPs forms a circular region, with its radius determined by the core diameter of the surface ECP. Various approaches for estimating the spatial extent of eddy current distribution induced by surface ECPs are examined. The study indicates that more accurate results are achieved by determining the boundary of the eddy current distribution area thro

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41

Zhang, Hong Jun, Xian Feng Du, and Bao Li. "Study on the Eddy Current Loss Characteristic of the Coaxial Cylinder Style Magnetic Coupler." Applied Mechanics and Materials 151 (January 2012): 41–46. http://dx.doi.org/10.4028/www.scientific.net/amm.151.41.

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This paper analyzed the eddy characteristics of the coaxial cylindrical magnetic coupler by using the finite element method, and simulated the impact of eddy currents on magnetic field. These effects mainly reflected in: weakening the magnetic coupling of the magnetic field intensity, and reducing the magnetic coupling torque. In addition, this paper calculated eddy current power loss, and proposed specific programs to reduce the eddy current power loss.

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42

Li, Yanzhao, and Haiyuan Li. "Effects of pulse current waveform on electromagnetic railgun considering the eddy current effects." Journal of Physics: Conference Series 2478, no. 11 (2023): 112002. http://dx.doi.org/10.1088/1742-6596/2478/11/112002.

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Abstract This paper investigates the effects of pulse current waveform on electromagnetic railgun considering the containment eddy current effects. First, a three-dimensional transient finite element model of the railgun with a metal containment and a pulse current waveform control model with constant feed energy are established. Then, taking the eddy current effect into account, the effects of different waveforms with constant feed energy on the eddy current, the rail current, the armature propulsive force, the rail repulsive force, the eddy current energy consumption, and the muzzle kinetic

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43

Paraliev, Martin, Christopher Gough, Sladjana Ivkovic, and Lukas Stingelin. "Eddy current focusing solenoid." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 637, no. 1 (2011): 12–17. http://dx.doi.org/10.1016/j.nima.2011.01.081.

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44

Bulic, Neven, and Livio Šušnjic. "Eddy current sensor simulation." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 36, no. 3 (2017): 619–32. http://dx.doi.org/10.1108/compel-09-2016-0415.

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Purpose This paper aims to present a simulation concept and an experimental verification of a novel sensor design for the shaft position measurement based on the eddy current principle and the phase-shift measurement. The simulation method for the sensor characteristic determination is presented. Possible application of a new sensor type is theoretically presented, verified in simulation and compared with experimental results. Design/methodology/approach Sensor is based on the injection-locking phenomenon between coupled oscillators. Only one sensor per axis is used for position measurement. A

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45

Beshers, Daniel N. "Eddy current damping revisited." Materials Science and Engineering: A 521-522 (September 2009): 190–93. http://dx.doi.org/10.1016/j.msea.2008.09.137.

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46

Kande, Mallikarjun S., M. Rukmini, Roopa Prasad, N. G. Roopa, and D. Sreelatha. "Digital Eddy current probe." Computer Standards & Interfaces 21, no. 2 (1999): 110. http://dx.doi.org/10.1016/s0920-5489(99)91968-2.

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47

Smith, L. E. W. "Eddy current probe manufacture." NDT International 23, no. 6 (1990): 358. http://dx.doi.org/10.1016/0308-9126(90)90881-n.

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48

Wells Krautkramer. "Eddy current component tester." NDT & E International 23, no. 4 (1990): 247–48. http://dx.doi.org/10.1016/0963-8695(90)90994-t.

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49

Hocking NDT Ltd. "Compact eddy current instruments." NDT & E International 23, no. 2 (1990): 123–24. http://dx.doi.org/10.1016/0963-8695(90)91099-a.

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50

Teledictor Ltd. "Eddy current sorting bridges." NDT & E International 24, no. 2 (1991): 114. http://dx.doi.org/10.1016/0963-8695(91)90958-6.

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