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Journal articles on the topic 'Eddy current'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

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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12

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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13

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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14

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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15

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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16

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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17

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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18

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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19

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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20

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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21

Golubenko, P. V. "Eddy-current flaw detector." Metallurgist 34, no. 7 (1990): 147–48. http://dx.doi.org/10.1007/bf00748760.

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22

Institut Dr Förster. "Documented eddy current testing." NDT & E International 26, no. 6 (1993): 325–26. http://dx.doi.org/10.1016/0963-8695(93)90144-j.

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23

Institut Dr Förster. "Compact eddy current transmitter." NDT & E International 26, no. 6 (1993): 330. http://dx.doi.org/10.1016/0963-8695(93)90153-l.

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24

Institut Dr Förster. "Eddy current testing system." NDT & E International 27, no. 3 (1994): 175. http://dx.doi.org/10.1016/0963-8695(94)90755-2.

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25

Holt, Chris. "Eddy current testing instruments." Physics Bulletin 39, no. 3 (1988): 99–100. http://dx.doi.org/10.1088/0031-9112/39/3/017.

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26

Marinova, I., S. Hayano, N. Ishida, Y. Saito, Y. Hirama, and M. Yamamoto. "Polyphase eddy current testing." Journal of Applied Physics 75, no. 10 (1994): 5904–6. http://dx.doi.org/10.1063/1.355557.

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27

Wells Krautkramer. "Eddy current component tester." NDT International 23, no. 4 (1990): 247–48. http://dx.doi.org/10.1016/0308-9126(90)91730-h.

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28

Hocking NDT Ltd. "Compact eddy current instruments." NDT International 23, no. 2 (1990): 123–24. http://dx.doi.org/10.1016/0308-9126(90)91988-6.

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29

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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30

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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31

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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32

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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33

Chen, De Yang, and Feng Yan Yi. "3D Design on Eddy Current Retarder." Advanced Materials Research 291-294 (July 2011): 2421–24. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.2421.

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This paper introduces the structure and working principle of the eddy current retarder , the design method of the eddy current retarder is proposed: the design of structure parameters including of the rotor windings and the excitation of eddy current retarder are completed, and on this basis 3D design of the eddy current retarder is completed by using UG software.

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34

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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35

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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36

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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37

Nguyen, Phuc, Van Thuy Nguyen, Binh Duong Vuong, et al. "Study, design and manufacture eddy current probes for industry applications." Nuclear Science and Technology 6, no. 2 (2021): 52–64. http://dx.doi.org/10.53747/jnst.v6i2.157.

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This study is based on the studying, designing and manufacturing of eddy current probes for industry applications. The main tasks of this study include: + Describes the overview and classification of eddy current probes (which can be classified into three categories based on the mode of operation: absolute eddy current probe, differential eddy current probe and reflect eddy current probe). + Describes the three methods of probe designing and manufacturing (including experimental, analytical and numerical designs). + Describes the designing and manufacturing of eddy current pr

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38

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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39

Seo, Hyodae, Arthur J. Miller, and Joel R. Norris. "Eddy–Wind Interaction in the California Current System: Dynamics and Impacts." Journal of Physical Oceanography 46, no. 2 (2016): 439–59. http://dx.doi.org/10.1175/jpo-d-15-0086.1.

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AbstractThe summertime California Current System (CCS) is characterized by energetic mesoscale eddies, whose sea surface temperature (SST) and surface current can significantly modify the wind stress and Ekman pumping. Relative importance of the eddy–wind interactions via SST and surface current in the CCS is examined using a high-resolution (7 km) regional coupled model with a novel coupling approach to isolate the small-scale air–sea coupling by SST and surface current. Results show that when the eddy-induced surface current is allowed to modify the wind stress, the spatially averaged surfac

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40

Hashimoto, Mitsuo, Daigo Kosaka, Kenichi Ooshima, and Yasutaka Nagata. "Numerical analysis of eddy current testing for tubes using uniform eddy current distribution." International Journal of Applied Electromagnetics and Mechanics 15, no. 1-4 (2002): 27–32. http://dx.doi.org/10.3233/jae-2002-511.

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41

Sun, Hu, Yibing Shi, Wei Zhang, and Yanjun Li. "Transient eddy current response to pulsed eddy current testing inside a ferromagnetic casing." NDT & E International 126 (March 2022): 102587. http://dx.doi.org/10.1016/j.ndteint.2021.102587.

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42

Tsuboi, H., N. Seshima, I. Sebestyen, J. Pavo, S. Gyimothy, and A. Gasparics. "Transient Eddy Current Analysis of Pulsed Eddy Current Testing by Finite Element Method." IEEE Transactions on Magnetics 40, no. 2 (2004): 1330–33. http://dx.doi.org/10.1109/tmag.2004.825009.

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43

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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44

Otterbach, Jan Marc, Reinhard Schmidt, Hartmut Brauer, Marek Ziolkowski, and Hannes Töpfer. "Comparison of defect detection limits in Lorentz force eddy current testing and classical eddy current testing." Journal of Sensors and Sensor Systems 7, no. 2 (2018): 453–59. http://dx.doi.org/10.5194/jsss-7-453-2018.

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Abstract. Lorentz force eddy current testing (LET) is a motion-induced eddy current testing method in the framework of nondestructive testing. In this study, we address the question of how this method is classified in comparison with a commercial eddy current testing (ECT) measurement device ELOTEST N300 in combination with the probe PKA48 from Rohmann GmbH. Therefore, measurements using both methods are performed and evaluated. Based on the measurement results, the corresponding defect detection limits, i.e., up to which depth the defect can be detected, are determined and discussed. For that

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45

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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46

AbdAlla, Ahmed N., Moneer A. Faraj, Fahmi Samsuri, Damhuji Rifai, Kharudin Ali, and Y. Al-Douri. "Challenges in improving the performance of eddy current testing: Review." Measurement and Control 52, no. 1-2 (2018): 46–64. http://dx.doi.org/10.1177/0020294018801382.

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Eddy current testing plays an important role in numerous industries, particularly in material coating, nuclear and oil and gas. However, the eddy current testing technique still needs to focus on the details of probe structure and its application. This paper presents an overview of eddy current testing technique and the probe structure design factors that affect the accuracy of crack detection. The first part focuses on the development of different types of eddy current testing probes and their advantages and disadvantages. A review of previous studies that examined testing samples, eddy curre

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47

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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48

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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49

Yang, Sui Xian, Chun Hu Leng, Jin Jing Zeng, Xiang Xiang Yi, and Dan Wu. "Eddy Current Stimulated Thermography and its Applications." Applied Mechanics and Materials 330 (June 2013): 250–56. http://dx.doi.org/10.4028/www.scientific.net/amm.330.250.

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Eddy current stimulated thermography is one of the advanced nondestructive testing (NDT) methods, which integrates eddy current and thermography together to take advantages of two typical NDT techniques. The theoretical basis of eddy current stimulated thermography was discussed first. After that, the experiment system was introduced in detail, including the system structure, coil design and selection of test parameters. Experiment and simulation results were presented. The infra-red (IR) images obtained by experiment and the temperature distribution images captured with simulation study were

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50

Mohd, Firdaus Mohd Ab Halim, Sulaiman Erwan, Jenal Mahyuzie, Nor Firdaus Kashfi Raja Othman Raja, and Muhammad Naufal Syed Othman Syed. "Preliminary analysis of eddy current and iron loss in magnetic gear in electric vehicle." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 2 (2022): 1161–67. https://doi.org/10.11591/ijece.v12i2.pp1161-1167.

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The inclusion of a high energy density permanent magnet into magnetic gear improves the machine's torque density. However, it also contributes to eddy current loss, especially in a high-speed application such in electric vehicle. In this paper, the losses from eddy current and iron loss are investigated on concentric magnetic gear (CMG). Torque multiplier CMG is designed with 8/3 gear ratio for this study. Iron loss and eddy current loss are compared and discussed. Based on this study, eddy current loss contributes to almost 96% of the total loss. This finding is hoped to direct the resear

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