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Artigos de revistas sobre o tema "Flux coil"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 4 de fevereiro de 2022

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1

Herceg, Dejana, Anamarija Juhas, and Miodrag Milutinov. "A design of a four square coil system for a biomagnetic experiment." Facta universitatis - series: Electronics and Energetics 22, no. 3 (2009): 285–92. http://dx.doi.org/10.2298/fuee0903285h.

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In this paper, a square coil system similar to the Merritt four coil system is investigated. This system is used for a biomagnetic experiment at the laboratory at the Department of Biology, Faculty of Sciences, University of Novi Sad. For the experiment, it is necessary that the magnetic field inside the coils be uniform. Therefore, distribution of the magnetic flux density inside the coil system is considered. For this system, magnetic flux density produced by sinusoidal current through the coils is calculated and then uniformity of the magnetic field inside the coils is investigated. Calcula

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2

Hwang, Young Jin, Jae Young Jang, and SangGap Lee. "A Flux-Controllable NI HTS Flux-Switching Machine for Electric Vehicle Applications." Applied Sciences 10, no. 5 (2020): 1564. http://dx.doi.org/10.3390/app10051564.

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This paper deals with a flux-controllable NI HTS flux-switching machine (FSM) for electric vehicle (EV) applications. In a variable-speed rotating machine for EVs, such as electric buses, electric aircraft and electric ships, an electric motor capable of regulating the flux offers the advantage of constant output operation. In general, conventional HTS rotating machines have excellent flux-regulation performance, because they excite an HTS field coil. However, it is difficult to ensure any flux-regulation capabilities in HTS rotating machines using HTS field coils that apply the no-insulation

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3

Olukotun, Babatunde, Julius Partridge, and Richard Bucknall. "Finite Element Modeling and Analysis of High Power, Low-loss Flux-Pipe Resonant Coils for Static Bidirectional Wireless Power Transfer." Energies 12, no. 18 (2019): 3534. http://dx.doi.org/10.3390/en12183534.

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This paper presents the optimal modeling and finite element analysis of strong-coupled, high-power and low-loss flux-pipe resonant coils for bidirectional wireless power transfer (WPT), applicable to electric vehicles (EVs) using series-series compensation topology. The initial design involves the modeling of strong-coupled flux-pipe coils with a fixed number of wire-turns. The ohmic and core loss reduction for the optimized coil model was implemented by creating two separate coils that are electrically parallel but magnetically coupled in order to achieve maximum flux linkage between the seco

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4

YAMAMOTO, Tatsuya, Yinggang BU, and Tsutomu MIZUNO. "Leakage Flux Recovery Coil for Energy Harvesting Using Magnetoplated Wire." Journal of the Japan Society of Applied Electromagnetics and Mechanics 23, no. 3 (2015): 486–91. http://dx.doi.org/10.14243/jsaem.23.486.

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5

Romlie, Mohd Fakhizan, Kevin Lau, Mohd Zaifulrizal Zainol, Mohd Faris Abdullah, and Ramani Kannan. "Performance of Inductive Coupled Power Transfer Versus the Coil Shape - Investigation using Finite Element Analysis." MATEC Web of Conferences 225 (2018): 01017. http://dx.doi.org/10.1051/matecconf/201822501017.

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The objective of this paper is to investigate the impact of the spiral coil shape of inductive coupled power transfer on its performance. The coil shapes evaluated are: circular, square and pentagon spiral shapes. The coils are modelled in Ansoft Maxwell software. Simulations are carried out to determine the mutual inductance, coupling coefficient and magnetic flux density. The performance in term of magnetic flux density, mutual inductance and coupling coefficient of the three coils shapes are compared. Of the three shapes, the pentagon is shown to have the best performance in term of its mut

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6

Isa, Wan Hasbullah Mohd, and Ismayuzri Ishak. "Analysis on the Optimal Geometrical Parameters of Topology Power Optimized Coil Based on a Cylindrical Magnet for Vibration-Based Electromagnetic Energy Harvester." Advanced Materials Research 903 (February 2014): 332–37. http://dx.doi.org/10.4028/www.scientific.net/amr.903.332.

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This paper presents the analysis on geometrical parameters of the power-optimized coil based on Faradays principle by maximizing the coverage of magnetic flux linkage by the coil using a cylindrical permanent magnet of 6 mm diameter and 6 mm height. Faradays law states that induced voltage is the rate of change of flux linkage, meaning more winding induces more voltage. However it will increase also the resistance of the coil because the length of copper wire will also increase, which will reduce the generated power and power-density by the harvester according to Joules and Ohms laws. Simulati

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7

Iswahyudi, Sigit, and Wandi Arnandi. "Thrust Force of Three Circular Windings of Conductor in Magnetic Field." Applied Mechanics and Materials 836 (June 2016): 20–25. http://dx.doi.org/10.4028/www.scientific.net/amm.836.20.

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An initial study of manipulated electric motor design to produce one axis thrust force without rotation was conducted. A cylindrical electromagnetic propulsion system has a diameter of 75 mm and a height of 90 mm made of ST 60 steel was tested. The system has a coil as conductor carrying current to produce thrust force and a coil to produce magnetic flux in its inner part. There were three windings of coils producing forces have effective diameter of 32 mm that were varied in their loops distance. The coil producing magnetic flux has 148 windings of 1 mm isolated cable on ferrite core. The thr

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8

Hwang, Young Jin, and Jong Myung Kim. "A Double Helix Flux Pipe-Based Inductive Link for Wireless Charging of Electric Vehicles." World Electric Vehicle Journal 11, no. 2 (2020): 33. http://dx.doi.org/10.3390/wevj11020033.

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This paper presents a novel inductive link for wireless power transfer (WPT) system of electric vehicles (EVs). The WPT technology uses an alternating magnetic field to transfer electric power through space. The use of the WPT technology for charging electric vehicle provides an excellent alternative to the existing plug-in charging technology. It has been reported that the inductive link using planar coils such as the circular and rectangular coil are capable of transferring a high power with high efficiency. However, they have a poor tolerance for lateral misalignment, thus their power trans

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9

Kikuchihara, Hiroki, Illiana Marinova, Yoshifuru Saito, Manabu Ohuchi, Hideo Mogi, and Yoshiro Oikawa. "Development of a New High Sensitive Eddy Current Sensor." Materials Science Forum 792 (August 2014): 98–103. http://dx.doi.org/10.4028/www.scientific.net/msf.792.98.

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Eddy current testing (ECT) is one of the most representative nondestructive testing methods for metallic materials, parts, structures and so on. Operating principle of ECT is based on two major properties of the magnetic field. One is that alternating magnetic field induces eddy current in conducting materials. Thereby, an input impedance of the magnetic field source, i.e., electric source, depends on the eddy current path. Second is that the magnetic field distribution depends not only on the exciting but also on the reactive magnetic fields caused by the eddy currents in targets. Former and

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10

Cividjian, G. A., A. Dolan, and N. Pãduraru. "Inductance of cylindrical coil." Serbian Journal of Electrical Engineering 1, no. 2 (2004): 143–51. http://dx.doi.org/10.2298/sjee0402143c.

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The cylindrical coreless and bar core coils are used in instrument transformers and many other electromagnetic devices. In the paper, using the separation of variables an analytical formula for the leakage inductance of thin cylindrical coil with unsaturated core is deduced, assuming a simplified path for the frontal flux. The results are compared with well-known experimental data and data resulting from FEM models.

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11

Koprivica, Branko, Marko Sucurovic, and Alenka Milovanovic. "Calibration of ac induction magnetometer." Facta universitatis - series: Electronics and Energetics 31, no. 4 (2018): 613–26. http://dx.doi.org/10.2298/fuee1804613k.

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The aim of this paper is to describe a procedure and experimental setup for calibration of AC induction magnetometer. The paper presents an overview of the previous research and results of measurement of magnetic flux density inside large diameter multilayer solenoid. This solenoid is magnetising coil of the magnetometer. The paper also describes a system of five smaller coils of the magnetometer which are placed inside the large solenoid. Three small coils are pickup coils, accompanied with two compensation coils, of which one is an empty coil for magnetic field measurement. The experimental

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12

Zakaria, Siti Nur Umira, and Erwan Sulaiman. "Magnetic Flux Analysis of E-Core Hybrid Excited FSM with Various Rotor-Pole Topologies." Applied Mechanics and Materials 695 (November 2014): 774–77. http://dx.doi.org/10.4028/www.scientific.net/amm.695.774.

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This paper presents magnetic flux analysis of E-Core Hybrid Excited FSM with various rotor pole topologies. The stator consists of three active fluxes sources namely armature coil, field excitation coil and permanent magnet, while the rotor consists of only stack of iron which is greatly reliable for high speed operation. Initially, coil arrangement tests are examined to validate the operating principle of the motor and to identify the zero rotor position. Then, performances of 6S-4P, 6S-5P, 6S-7P and 6S-8P E-Core HEFSMs such as flux path, flux linkage, cogging torque and flux distribution are

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13

Wołoszyn, Mirosław, Daniel Kowalak, Kazimierz Jakubiuk, and Mikołaj Nowak. "The flux compression generator load parameters selection." ITM Web of Conferences 28 (2019): 01002. http://dx.doi.org/10.1051/itmconf/20192801002.

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Computer simulation results of the flux compression generator (FCG) loaded with an inductor has been presented in this paper. Simulation research has been performed in order to select the parameters of FCG load coil properly. The influence of the load inductance and resistance on the current gain factor and the magnetic field energy accumulated in a load coil has been investigated.

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14

MIURA, N., Y. H. MATSUDA, K. UCHIDA, S. IKEDA, and F. HERLACH. "ADVANCES IN MEGAGAUSS FIELD GENERATION AND APPLICATION AT ISSP." International Journal of Modern Physics B 16, no. 20n22 (2002): 3379–84. http://dx.doi.org/10.1142/s0217979202014486.

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We report recent progress in the generation and application of megagauss fields at the new Megagauss Laboratory of ISSP in Kashiwa. New facilities for studying physics in ultra-high magnetic fields were built at the new campus of the University of Tokyo at Kashiwa, where pulsed high magnetic fields are produced by three different techniques: electromagnetic flux compression, the single-turn coil technique and non-destructive long pulse magnets. Considerable progress has been made in each of these techniques, as compared with the old facilities at Roppongi. For electromagnetic flux compression,

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15

Wang, Jingang, Chen Shen, Pengcheng Zhao, et al. "A Design Method for Magnetically Coupled Resonant Coils Considering Transmission Objectives and Dimension Constraints." Energies 13, no. 16 (2020): 4144. http://dx.doi.org/10.3390/en13164144.

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This paper proposes a coil design method for the magnetically coupled resonant wireless power transfer (MCR-WPT) system. Based on the Biot–Savart law, the magnetic flux density at the observation point was derived, and the magnetic flux of the observation plane generated by the exciting coil was deduced to build the calculation model of power transfer efficiency (PTE) and power delivered to the load (PDL). The PTE and PDL curves via coil parameters could be fitted in minutes using numerical calculation. The coil was designed according to transmission objectives and dimension constraints. In ad

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16

Miličević, Kruno, Ivan Flegar, and Denis Pelin. "Flux Reflection Model of the Ferroresonant Circuit." Mathematical Problems in Engineering 2009 (2009): 1–13. http://dx.doi.org/10.1155/2009/693081.

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The paper presents a linear model of ferroresonant circuit with flux reflection. The proposed model—flux reflection model—derives from observations of typical flux waveforms of nonlinear coil during ferroresonant steady states. Simulation results of the flux reflection model are compared with simulation results of the usual nonlinear model as well as with measurements carried out on the physical model of the ferroresonant circuit. The flux reflection model enables a novel comprehension of the ferroresonant circuit behavior and simplifies the modeling of the nonlinear coil in the ferroresonant

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17

Liang, Ce, Yanchi Zhang, Zhonggang Li, Feng Yuan, Guang Yang, and Kai Song. "Coil Positioning for Wireless Power Transfer System of Automatic Guided Vehicle Based on Magnetic Sensing." Sensors 20, no. 18 (2020): 5304. http://dx.doi.org/10.3390/s20185304.

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As an auxiliary function of the wireless power transfer (WPT) system, coil positioning can solve the power and efficiency degradation during power transmission caused by misalignment of the magnetic coupler. In this paper, a Hall sensor array is used to measure the change of magnetic flux density. By comparing the multisensor data fusion results with the preset data obtained from the coil alignment, the real-time accurate positioning of the receiving coil can be realized. Firstly, the positioning model of the receiving coil is built and the variation of magnetic flux density with the coil misa

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18

Kwahk, Imjong, Kwang-Yeun Park, Ji-Young Choi, Hungjoo Kwon, and Changbin Joh. "Non-Destructive Evaluation for Sectional Loss of External Tendon of Prestressed Concrete Structures Using Total Flux Leakage." Applied Sciences 10, no. 21 (2020): 7398. http://dx.doi.org/10.3390/app10217398.

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A non-destructive evaluation method is proposed to identify the sectional loss of the external tendon of prestressed concrete structures by detecting the change of the magnetic flux in the external tendon exposed to a magnetic field. The method uses a solenoid-shaped device with two coils: a primary coil for producing magnetic field and secondary coil for damage detection, wrapping the external tendon. A current applied to the primary coil in the device causes the magnetic field. Then, the change in the magnetic flux by the damage in the external tendon is detected by the variation of the volt

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19

Yamamoto, Takahiko, and Kohji Koshiji. "Magnetic-Field Immunity Examination and Evaluation of Transcutaneous Energy-Transmission System for a Totally Implantable Artificial Heart." Advances in Power Electronics 2012 (January 9, 2012): 1–5. http://dx.doi.org/10.1155/2012/421639.

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Transcutaneous energy transmission (TET) is the most promising noninvasive method for supplying driving energy to a totally implantable artificial heart. Induction-heating (IH) cookers generate a magnetic flux, and if a cooker is operated near a transcutaneous transformer, the magnetic flux generated will link with its external and internal coils. This will affect the performance of the TET and the artificial heart system. In this paper, we present the design and development of a coil to be used for a magnetic immunity test, and we detail the investigation of the magnetic immunity of a transcu

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20

Guo, Li, and Zhou. "Study of a Null-Flux Coil Electrodynamic Suspension Structure for Evacuated Tube Transportation." Symmetry 11, no. 10 (2019): 1239. http://dx.doi.org/10.3390/sym11101239.

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This paper focuses on the study of a null-flux coil electrodynamic suspension structure for evacuated tube transportation (ETT). A Maglev system in evacuated tubes is a promising concept for high speed transportation systems, and the design of levitation structure is a critical part among the subsystems. The whole system with functions of levitation, guidance, and propulsion is proposed in this paper, and the utilization of magnetic fields from both sides of magnets makes the system simple. The figure eight shaped null-flux coil suspension structure is adopted to provide a high levitation-drag

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21

Zatonov, Ivan, and Pavel Baranov. "The Numerical Simulation of the Shielded Helmholtz Coils System Magnetic Field." MATEC Web of Conferences 155 (2018): 01038. http://dx.doi.org/10.1051/matecconf/201815501038.

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This article describes the calculation of the magnetic field in the axial direction for the Helmholtz coil. The inhomogeneity of the magnetic field for this coil system is calculated. Authors defined the functional connection of the magnetic flux density in the system center from the antimagnetic shield thickness in two ways: iron and Finemet alloy shield. The dependency graph of the magnetic field inhomogeneity in the center of shielded Helmholtz coils system from the axial coordinate value is estimated

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22

Lund, Daniel, Eric Dietz, Xueli Zou, et al. "Flux Redux: The Spinning Coil Comes Around Again." Physics Teacher 55, no. 1 (2017): 41–43. http://dx.doi.org/10.1119/1.4972498.

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23

Yabukami, S., K. Kikuchi, M. Yamaguchi, and K. I. Arai. "Magnetic flux sensing principle of microstrip pickup coil." IEEE Transactions on Magnetics 33, no. 5 (1997): 4044–46. http://dx.doi.org/10.1109/20.619657.

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24

Sulaiman, Erwan, Hassan Ali, Mubin Aizat, and Zhafir Aizat. "Improved Design of Three Phase Hybrid Excitation Flux Switching Motor with Segmental Rotor." Applied Mechanics and Materials 785 (August 2015): 295–99. http://dx.doi.org/10.4028/www.scientific.net/amm.785.295.

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This paper presents the new design of Hybrid Excitation Flux Switching Motor (HEFSM) using segmental rotor structure. HEFSMs are those that consist all the excitation flux sources at their stator with robust rotor structure. The rotor is designed as segmental due to the reason that segmental rotor has ability to yield the magnetic path for conveying the field flux to nearby stator armature coil with respect to the rotation of the rotor. This design gives the clear advantage of shorter end winding compared to the toothed rotor as there is no overlap winding between field excitation coil (FEC) a

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25

Lu, Ya-Wen, and Mai Lu. "Comparison of Induced Fields in Virtual Human and Rat Heads by Transcranial Magnetic Stimulation." BioMed Research International 2018 (December 31, 2018): 1–8. http://dx.doi.org/10.1155/2018/5270279.

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Transcranial magnetic stimulation (TMS) shows significant values in both brain research and therapeutic applications of cognitive neuroscience, neurophysiology, and psychiatry. Animal studies of TMS provide a potential way for learning the biological mechanisms of actions of TMS. In this paper, we presented the comparison of human TMS and rat TMS by using the conventional figure-of-eight coil for the first time. Three-dimensional distributions of magnetic flux density and induced electric field in both virtual human and rat heads were obtained through the 3D impedance method. The results indic

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26

Salar Elahi, A., and M. Ghoranneviss. "Application of multipole moments and magnetic techniques for determination of tokamak plasma shift." Journal of Plasma Physics 80, no. 1 (2013): 9–25. http://dx.doi.org/10.1017/s0022377813000834.

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AbstractIn this contribution, we presented approaches for the determination of tokamak plasma column shift based on multipole moments and magnetic techniques. First, we presented analytical details for using this technique. Then, the principle of different models based on this technique for the design and fabrication of six coils will be presented: four modified Rogowski coils (two cosine coils and two sine coils) and two saddle coils (saddle sine coil and saddle cosine coil). Also, to compare the results, the flux loops technique is used. Because of continuous measurements of magnetic field d

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27

Wang, Xiufang, Yu Wang, Yilang Liang, et al. "Study on the transmission characteristics of magnetic resonance wireless power transfer system." International Journal of Microwave and Wireless Technologies 9, no. 9 (2017): 1799–807. http://dx.doi.org/10.1017/s1759078717000629.

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Magnetic coupling resonance wireless power transfer technology has attracted worldwide attention in recent years due to its mid-range, non-radiative, and high-efficiency power transfer. However, in regard to its practical applications, there are still some issues that need to be considered and studied with respect to coil design, such as coil structure, and parasitic parameter extraction. This paper investigated the characteristics of magnetic coupling resonance wireless power transfer systems with different coil structures, including circular coils and rectangular coils arranged in parallel.

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28

Lim, Jungyoul, Chang-Young Lee, Jin-Ho Lee, Wonhee You, Kwan-Sup Lee, and Suyong Choi. "Design Model of Null-Flux Coil Electrodynamic Suspension for the Hyperloop." Energies 13, no. 19 (2020): 5075. http://dx.doi.org/10.3390/en13195075.

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The Hyperloop has been developed using various technologies to reach a maximum speed of 1200 km/h. Such technologies include magnetic levitation technologies that are suitable for subsonic driving. In the Hyperloop, the null-flux electrodynamic suspension (EDS) system and superconducting magnets (SCMs) can perform stable levitation without control during high-speed driving. Although an EDS device can be accurately analyzed using numerical analysis methods, such as the 3D finite element method (FEM) or dynamic circuitry theory, its 3D configurations make it difficult to use in various design an

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29

Debray, Quentin, Gerard Meunier, Olivier Chadebec, Jean-Louis Coulomb, and Anthony Carpentier. "A semi-analytical method to compute the magnetic flux linkage of a 2D meshed coil in presence of magnetic materials − application to electrical motor pre-design." European Physical Journal Applied Physics 83, no. 2 (2018): 20902. http://dx.doi.org/10.1051/epjap/2018170420.

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This paper provides a semi-analytical approach for computing the flux linkage of a 2D meshed coil in presence of a non-linear magnetic material. First, a method for flux computation is introduced given the field obtained thanks to a volume integral method. Second, an analytical method for computing the magnetic source field and magnetic vector potential induced by a 2D meshed coil is presented, those quantities being necessary for the flux computation. Comparisons to the finite elements methods are carried out to conclude on the performances of the new method presented.

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30

Kennedy, Mark William, Jon Arne Bakken, and Ragnhild Elizabeth Aune. "Impact of Coil Geometry on Magnetohydrodynamic Flow in Liquid Aluminium and Its Relevance to Inclusion Separation by Electromagnetophoresis." Journal for Manufacturing Science and Production 15, no. 1 (2015): 69–78. http://dx.doi.org/10.1515/jmsp-2014-0048.

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AbstractMagnetohydrodynamic (MHD) flow will be produced in liquid aluminium by gradients in the Lorentz forces created by the interactions of induced currents and the time-varying magnetic field of an induction coil. The magnitude of the velocity field is driven by the curl of the Lorentz forces. Practical coils are “Short” and produce magnetic fields having both lower flux densities and Lorentz forces than very “Long” or infinite coils. Unlike infinite coils, the magnetic fields of “Short” coils contain both axial and radial components, which vary with position and thereby produce powerful MH

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31

Bui, Huy-Tien, and Sheng-Jye Hwang. "Design of an induction heating coil coupled with magnetic flux concentrators for barrel heating of an injection molding machine." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 3 (2014): 518–27. http://dx.doi.org/10.1177/0954406214537806.

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In an injection molding machine, the conventional barrel heating system which uses resistance heating method (RH) has some drawbacks such as low heating rate, long heating time, and energy loss. With induction heating (IH) technique, the barrel can better handle almost all of these disadvantages. However, non-uniform temperature distribution on inside surface of a barrel is the main drawback of induction heaters. A working coil coupled with magnetic flux concentrators via adjustment of magnetic flux concentrator spacing to achieve uniformity of magnetic flux and temperature distribution on the

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32

Chen, Lin, Chang, et al. "Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy." Sensors 19, no. 23 (2019): 5105. http://dx.doi.org/10.3390/s19235105.

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In this paper, we demonstrate an innovative electromagnetic targeting system utilizing a passive magnetic-flux-concentrator for tracking endobronchoscope used in the diagnosis process of lung cancer tumors/lesions. The system consists of a magnetic-flux emitting coil, a magnetic-flux receiving electromagnets-array, and high permeability silicon-steel sheets rolled as a collar (as the passive magnetic-flux-concentrator) fixed in a guide sheath of an endobronchoscope. The emitting coil is used to produce AC magnetic-flux, which is consequently received by the receiving electromagnets-array. Due

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33

Lei, Yi Ming, and Zhi Yu Wen. "Numerical Optimization Approach of the Gap between the Magnet and Coil for Electromagnetic Vibration Energy Harvesters Design." Key Engineering Materials 645-646 (May 2015): 1214–22. http://dx.doi.org/10.4028/www.scientific.net/kem.645-646.1214.

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In the design of the micro electromagnetic vibration harvester, an important goal is maximization of the magnetic flux linkage gradient, which directly determines the induced voltage and output power of the electromagnetic vibration harvester. This paper established a numerical model based on structure of the electromagnetic vibration energy harvester. An analytic expression for the magnetic field of rectangular permanent magnets is used to build up an electromagnetic coupling model. The magnetic field distribution of the rectangular permanent magnet was analyzed. The effects of the gap betwee

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34

Ali, Machrus, Agus Raikhani, Budiman Budiman, and Hendi Sopian. "Algoritma Persaingan Imperialis Sebagai Optimasi Kontroler PID dan ANFIS Pada Mesin Sinkron Magnet Permanen (Imperialist Competitive Algorithm As PID Optimization and ANFIS Controller at Permanent Magnet Synchronous Machine)." JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) 3, no. 1 (2019): 57. http://dx.doi.org/10.21070/jeee-u.v3i1.2023.

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Permanent Magnet Syschronous Machine (PMSM) has low torque, so good control is needed to be stable quickly. PMSM uses the principle of faraday experiments which is rotating a magnet in a coil or vice versa. When a magnet moves in a coil, there is a change in magnetic flux in the coil and penetrates perpendicular to the coil so that there is a potential difference between the ends of the coil, regarding this due to changes in magnetic flux. Magnetic flux can be changed by moving a magnet in a coil or vice versa by utilizing other energy sources. To get a good optimization result, the right cont

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35

Hanreich, G., M. Mündleina, H. Hauser, et al. "Ultra-thin pick-up coil for surface flux detection." Sensors and Actuators A: Physical 91, no. 1-2 (2001): 57–60. http://dx.doi.org/10.1016/s0924-4247(01)00514-3.

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36

Sun, Yu, Youhua Wang, Xiaoguang Yang, and Lingling Pang. "A Novel Coil Distribution for Transverse Flux Induction Heating." Physics Procedia 50 (2013): 32–37. http://dx.doi.org/10.1016/j.phpro.2013.11.007.

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37

Parise, Mauro, Giulio Antonini, and Daniele Romano. "On the Flux Linkage between Pancake Coils in Resonance-Type Wireless Power Transfer Systems." International Journal of Antennas and Propagation 2020 (February 5, 2020): 1–6. http://dx.doi.org/10.1155/2020/8630978.

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This work presents a series representation for the mutual inductance of two coaxial pancake coils which remains accurate in non-quasi-static regime under the hypothesis that the current in the source coil is uniformly distributed. Making use of Gegenbauer’s addition theorem and a term-by-term analytical integration, the mutual inductance between two generic turns belonging to distinct coils is expressed as a sum of spherical Hankel functions with algebraic coefficients. The accuracy and efficiency of the resulting expression is proved through pertinent numerical examples.

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Arokiaraj, Mark Christopher, and Aleksandr Liubimtcev. "Evaluation of Magnetic Parameters and Kinetics of the Magnetic Nanoparticles in High Magnetic Fields and its Potential Applications." Open Access Macedonian Journal of Medical Sciences 8, A (2020): 24–36. http://dx.doi.org/10.3889/oamjms.2020.3256.

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BACKGROUND: Multifunctional nanoparticles are known for their wide range of biomedical applications. Controlling the magnetic properties of these nanoparticles is imperative for various applications, including therapeutic angiogenesis. AIM: The study was performed to evaluate the magnetic properties and their control mechanisms by the external magnetic field. METHODS: A100 nm magnetic nanoparticle was placed in the magnetic field, and parametrically, the magnet field strength and distance were evaluated. Various models of magnetic strength and disposition were evaluated. Magnetic flux de

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Camilleri, Robert, and Malcolm D. McCulloch. "Integrating a Heat Sink into Concentrated Wound Coils to Improve the Current Density of an Axial Flux, Direct Liquid Cooled Electrical Machine with Segmented Stator." Energies 14, no. 12 (2021): 3619. http://dx.doi.org/10.3390/en14123619.

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This paper proposes a new construction with a heat sink integrated into the concentrated wound coils of an axial flux, direct liquid cooled electrical machine. A preliminary assessment of the effectiveness of the heat sink and its position is made using computational fluid dynamics. Lumped-parameter thermal models are also developed, thus allowing accurate comparison of the thermal profile of the two constructions. Following experimental calibration of the model and thermal validation, the temperature profile of the new construction is compared to that from a traditional concentrated wound coi

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Qudsi, Ony Asrarul, and Syechu Dwitya Nugraha. "Desain dan Implementasi Pengaturan Kecepatan Motor BLDC Melalui Pengaturan Fluks." INOVTEK - Seri Elektro 1, no. 1 (2019): 36. http://dx.doi.org/10.35314/ise.v1i1.1231.

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This journal presents the design and implementation of BLDC motor speed control. Speed control of the BLDC motor can be done by controlling the flux produced by the BLDC motor coil. The current reading by the sensor will be processed in the flux estimator to get the flux value in the motor. By using the PI controller, the flux value generated by the coil will be controlled so that it is equal to the setpoint value that has been determined. Flux values that have the same setpoint will be converted to PWM values which will be used as input signals on the six step inverter. The test results by pr

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Qian, Zhongnan, Rui Yan, Zeqian Cheng, Jiande Wu, and Xiangning He. "Magnetic Positioning Technique Integrated with Near-Field Communication for Wireless EV Charging." Energies 13, no. 5 (2020): 1081. http://dx.doi.org/10.3390/en13051081.

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For wireless electric vehicle charging, the relative position of the primary and secondary coils has significant impacts on the transferred power, efficiency and leakage magnetic flux. In this paper, a magnetic positioning method using simultaneous power and data transmission (SWPDT) is proposed for power coil alignment. Four signal coils are installed on the primary coil to detect the secondary coil position. By measuring the positioning signal amplitudes from the four signal coils, the power coil relative position can be obtained. Moreover, all the communication needed in the positioning pro

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Tian, Peng, Xing Juan Wang, Li Guang Zhu, Yue Kai Xue, Wei Chen, and Wei Tian. "Numerical Simulation of High Frequency Electromagnetic Field in Soft Contact Continuous Casting Mold." Advanced Materials Research 482-484 (February 2012): 1534–37. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.1534.

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Based on electromagnetic theory, a billet model electromagnetic continuous casting of physical and mathematical were established. The three-dimensional mold for billet electromagnetic field was calculated by finite element method of ANSYS three-dimensional numerical simulation. Then the distribution of the electromagnetic field inside the crystal was gotten. At the same time, the influence of the power frequency and current strength on the intensity and distribution of the magnetic field were simulated. The result shows that the maximum of the electromagnetic flux density lies in the center of

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Wang, Shu Xiang, Wei Zhang, and Jin Liang Xu. "Experimental Investigation on Flow Characteristics of Supercritical CO₂ in a Helically Coiled Tube." Applied Mechanics and Materials 368-370 (August 2013): 631–35. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.631.

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Under the background of global warming, carbon dioxide among natural refrigerants has attracted considerable attention as an alternative refrigerant. In the present study, experimental investigations of the fluid flow characteristic of supercritical CO2in a helically coiled tube with the inner diameter 9.0 mm, coil diameter 283 mm and coil pitch 32 mm were carried out. Both frictional pressure drop and friction factor were obtained under the pressure of 8.0 MPa, mass flux from 0 to 600 kg/m2s and inner heat flux from 0 to 20 kW/m2. The results indicate that inner wall heat flux and mass flux h

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Schirmer, Clemens M., and Adel M. Malek. "Critical Influence of Framing Coil Orientation on Intra-Aneurysmal and Neck Region Hemodynamics in a Sidewall Aneurysm Model." Neurosurgery 67, no. 6 (2010): 1692–702. http://dx.doi.org/10.1227/neu.0b013e3181f9a93b.

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Abstract BACKGROUND: Although coiling of intracranial aneurysms is thought to rely on obstruction of blood flow into the aneurysm and induction of intra-aneurysmal thrombosis, little data exist regarding the effect of coil deployment on hemodynamics. OBJECTIVE: To evaluate the effects of simulated coiling of a model aneurysm on flow and wall shear stress in the dome and neck regions using computational fluid dynamic analysis. METHODS: A spherical sidewall aneurysm on a curved parent vessel underwent simulated embolization with 1 or more computer-designed helical coils. The coils' axes had para

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Tang, Jian, Rongbiao Wang, Jikai Zhang, and Yihua Kang. "The influence of magnetic head’s pose on magnetic flux leakage detection." International Journal of Applied Electromagnetics and Mechanics 64, no. 1-4 (2020): 493–500. http://dx.doi.org/10.3233/jae-209356.

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As a high-sensitivity magnetic sensor, the magnetic head has been gradually applied to non-destructive testing. Compared with the single coil and the coil with an iron core, the magnetic core can converge the weak leakage magnetic field because it can form a magnetic circuit to transmit the leakage field to the coil wound thereon. So that it has a higher sensitivity. However, in practical applications, it’s found that the pose error of the head affects its sensitivity. Therefore, this paper analyzes the influence of the tilt of the head on the magnetic core’s ability to sense leakage magnetic

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Nya’Ubit, Ilham Rizkia, Gigih Priyandoko, Fitrian Imaduddin, Dimas Adiputra, and Ubaidillah. "Torque Characterization of T-shaped Magnetorheological Brake Featuring Serpentine Magnetic Flux." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 78, no. 2 (2020): 85–97. http://dx.doi.org/10.37934/arfmts.78.2.8597.

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Recently, T-shaped Magnetorheological Brake (MRB) usually utilize more than one wire coil electromagnetic to maximize magnetic flux reaching all Magnetorheological Fluid (MRF) gaps. This research was focused on the usage of a single wire coil on MRB with uniformly magnetic flux distribution. To achieve the goal, the serpentine magnetic flux profile was adopted to maximize all MRF gaps that only use a single coil. Firstly, the magnetic circuit which implementing serpentine magnetic flux was design in a two-dimensional model. It was then followed by magnetostatic simulation using Finite Element

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Agus Nur Hidayat, Suyitno, and Daryanto. "PENGARUH JUMLAH LILITAN KUMPARAN STATOR TERHADAP KINERJA GENERATOR MAGNTE PERMANEN FLUKS AKSIAL SATU FASA." Journal of Electrical Vocational Education and Technology 2, no. 2 (2020): 28–31. http://dx.doi.org/10.21009/jevet.0022.06.

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The purpose of this research is to know to know the influence of stator coil shape to performance (induced voltage and output power) of single phase axial flux permanent magnet generator. The method used is an experimental method. The population in this study is a unit of single phase axial flux permanent magnet generator. The sample in this study is the stator coil. Experiments were carried out by testing the performance of a single-phase axial flux permanent magnet generator in each variation the number of coil windings which had the 90 turns, 120 turns, and 350 turns. Experiments were

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Sapiński, Bogdan. "Magnetic Field and Circuit Parameters in an Electromagnetic Generator Supporting a Rotary MR Damper." Solid State Phenomena 198 (March 2013): 340–47. http://dx.doi.org/10.4028/www.scientific.net/ssp.198.340.

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This paper summarises the results of numerical calculations of magnetic field and circuit parameters in an electromagnetic generator supplying a rotary MR damper. The design and operating principles of the generator are outlined. The distribution of the magnetic flux density vector is obtained, other parameters include its modulus, the magnetic flux from permanent magnets and time patterns of induced voltage and current in the control coil of the damper, power and energy of magnetic field in this coil at different rotational speeds of the induction with respect to the armature.

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Wang, Chengtao, Ershuai Kong, Da Cheng, Yingzhe Wang, Kai Zhang, and Qingjin Xu. "Electromagnetic design of a 12 T twin-aperture dipole magnet." International Journal of Modern Physics A 32, no. 34 (2017): 1746008. http://dx.doi.org/10.1142/s0217751x17460083.

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A 12 T twin-aperture subscale magnet is under development at the Institute of High Energy Physics (IHEP, Beijing, China), as the R&D of high-field accelerator magnet technology for SPPC (Super Proton–Proton Collider) pre-study. Four NbTi coils and two Nb3Sn coils will be fabricated firstly, to provide a 12 T dipole field in two apertures with the load line ratio of 20% at 4.2 K. After that, the HTS (ReBCO and Bi-2212) coils will be inserted between the Nb3Sn coils to realize a higher dipole field. The ReBCO coils with the block-type configuration will be inserted between the Nb3Sn coils wi

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Bui, Huy-Tien, and Sheng-Jye Hwang. "Development of barrel heating system in injection molding machine via induction heating." Rapid Prototyping Journal 21, no. 3 (2015): 244–49. http://dx.doi.org/10.1108/rpj-06-2013-0062.

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Purpose – The purpose of this paper is to develop a barrel heating system using induction heating instead of resistance heating. And, a working coil for the induction heating system was designed so that the barrel has uniform temperature distribution. Design/methodology/approach – A coupling design combining the pitch of turns of working coil with the magnetic flux concentrators in the barrel induction heating system was developed to achieve uniform temperature distribution which was approximately the same as temperature uniformity obtained from that of resistance heating system. Findings – In

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