Magnetic Fields
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Periodicals related to Magnetic Fields
Back to TopApplied Superconductivity, IEEE Transactions on
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
Biomedical Engineering, IEEE Transactions on
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Magnetics, IEEE Transactions on
Science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage. The Transactions publishes scholarly articles of archival value as well as tutorial expositions and critical reviews of classical subjects and topics of current interest.
Mechatronics, IEEE/ASME Transactions on
Synergetic integration of mechanical engineering with electronic and intelligent computer control in the design and manufacture of industrial products and processes. (4) (IEEE Guide for Authors) A primary purpose is to have an aarchival publication which will encompass both theory and practice. Papers will be published which disclose significant new knowledge needed to implement intelligent mechatronics systems, from analysis and ...
Xplore Articles related to Magnetic Fields
Back to TopCalculation of stray magnetic field effects on the operation of the ITER electron cyclotron system
F. Li; S. Alberti; J. Ph. Hogge; I. Gr. Pagonakis 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
In a multigyrotron system such as the one presently designed for the ITER ECH & ECCD system, stray magnetic fields can significantly alter the operational capabilities of the global system. A numerical study was carried out within the European Gyrotron Consortium (EGYC) to assess the importance of the different effects and their impact on the gyrotron operation. Using the Ariadne++ ...
Options for shielding Tokamak Cooling Water electrical components against high magnetic fields
Kofi Korsah; Michael Smith; Seokho Kim; Charles Neumeyer 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
The Tokamak Cooling Water System (TCWS) Instrumentation and Control (I&C) components of ITER will be located in areas of relatively high magnetic fields. Previous tests on electrical and I&C components have indicated that shielding will be required to protect these components from such magnetic fields. To accomplish this, studies were performed by AREVA Federal Services (AFS) in support of the ...
Influence of plasma operation on the PF circulator of KSTAR HRS System during 2010 campaign
H. J. Lee; D. S. Park; Y. M. Park; K. M. Moon; J. J. Joo; H. L. Yang; M. Kwon 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
The Helium Refrigerator System (HRS) of the Korea Superconducting Tokamak Advanced Research (KSTAR) which was designed to provide an energetic equivalent cooling power of 9 kW at 4.5 K, has been operated successfully during last three years since 2008. For the operation of the KSTAR, the all of the cold components, such as the superconducting (SC) magnets, magnet structure, thermal ...
M. Yoshishige; M. Kyousuke Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on, 2001
The levitation of bulk high Tc superconductor (HTSC) has been, hitherto, analyzed as a distributed system by computer using the finite element method. The essence of the levitation is, however, the energy conversion between the mechanical energy to move the HTSC, which is converted to magnetic field energy due to the circulating current in the HTSC. To clarify this idea, ...
To the problem of electromagnetic waves propagation in turbulent magnetized plasma slab
G. V. Jandieri; A. Ishimaru; K. Yasumoto; V. G. Jandieri; N. N. Zhukova 2011 XXXth URSI General Assembly and Scientific Symposium, 2011
Second order statistical moment of the ordinary and extraordinary waves scattered by turbulent magnetized plasma slab with electron density and magnetic field fluctuations is analytically calculated applying the perturbation method. Numerical calculations are carried out for the anisotropic Gaussian fluctuation spectrum at different anisotropy factor and the angle of inclination of prolate irregularities with respect to the external magnetic field. ...
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Educational Resources on Magnetic Fields
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Calculation of stray magnetic field effects on the operation of the ITER electron cyclotron system
F. Li; S. Alberti; J. Ph. Hogge; I. Gr. Pagonakis 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
In a multigyrotron system such as the one presently designed for the ITER ECH & ECCD system, stray magnetic fields can significantly alter the operational capabilities of the global system. A numerical study was carried out within the European Gyrotron Consortium (EGYC) to assess the importance of the different effects and their impact on the gyrotron operation. Using the Ariadne++ ...
Options for shielding Tokamak Cooling Water electrical components against high magnetic fields
Kofi Korsah; Michael Smith; Seokho Kim; Charles Neumeyer 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
The Tokamak Cooling Water System (TCWS) Instrumentation and Control (I&C) components of ITER will be located in areas of relatively high magnetic fields. Previous tests on electrical and I&C components have indicated that shielding will be required to protect these components from such magnetic fields. To accomplish this, studies were performed by AREVA Federal Services (AFS) in support of the ...
Influence of plasma operation on the PF circulator of KSTAR HRS System during 2010 campaign
H. J. Lee; D. S. Park; Y. M. Park; K. M. Moon; J. J. Joo; H. L. Yang; M. Kwon 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011
The Helium Refrigerator System (HRS) of the Korea Superconducting Tokamak Advanced Research (KSTAR) which was designed to provide an energetic equivalent cooling power of 9 kW at 4.5 K, has been operated successfully during last three years since 2008. For the operation of the KSTAR, the all of the cold components, such as the superconducting (SC) magnets, magnet structure, thermal ...
M. Yoshishige; M. Kyousuke Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on, 2001
The levitation of bulk high Tc superconductor (HTSC) has been, hitherto, analyzed as a distributed system by computer using the finite element method. The essence of the levitation is, however, the energy conversion between the mechanical energy to move the HTSC, which is converted to magnetic field energy due to the circulating current in the HTSC. To clarify this idea, ...
To the problem of electromagnetic waves propagation in turbulent magnetized plasma slab
G. V. Jandieri; A. Ishimaru; K. Yasumoto; V. G. Jandieri; N. N. Zhukova 2011 XXXth URSI General Assembly and Scientific Symposium, 2011
Second order statistical moment of the ordinary and extraordinary waves scattered by turbulent magnetized plasma slab with electron density and magnetic field fluctuations is analytically calculated applying the perturbation method. Numerical calculations are carried out for the anisotropic Gaussian fluctuation spectrum at different anisotropy factor and the angle of inclination of prolate irregularities with respect to the external magnetic field. ...
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35 Years of Magnetic Heterostructures
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IEEE Magnetics 2014 Distinguished Lectures  Tim St Pierre
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Superconductors for the Future from the Perspective of the Past
IEEEUSA EBooks

An Assessment of the Bioeffects Induced by PowerLine Frequency Electromagnetic Fields
This chapter contains sections titled: Introduction Electric and Magnetic Fields and Their Sources Epidemiological Studies Related to Cancer Electromagnetic Field Exposure and Cancer in Experimental Animals Electromagnetic Field Exposure and Tumor Promotion in Experimental Animals Epidemiological Studies Related to Neurodegenerative Diseases Bioeffects of EMF Exposures in Animals which may Relate to Cancer and Neurodegenerative Diseases Concluding Remarks References

Medical Applications of Static and LowFrequency Pulsed Magnetic Fields
This chapter contains sections titled: Introduction Transcranial magnetic stimulation (TMS) of the human brain Repetitive transcranial magnetic stimulation Magnetic orientation of biological macromolecules Possible medical applications of gradient magnetic force Biochemical reactions under static magnetic fields References

Induction and Fractional Horsepower Motors
This chapter contains sections titled: Introduction ThreePhase Induction Motors Torque Relations Classification of Induction Motors Rotating Magnetic Fields in SinglePhase Induction Motors Equivalent Circuits for SinglePhase Induction Motors Power and Torque Relations Starting SinglePhase Induction Motors SinglePhase Induction Motor Types Problems

The 2D Scattering Equations for Magnetic Targets
This chapter first considers two dimensional (2D) scattering equations for magnetic targets with only magnetic anomalies. Due to the linearity of the relationships between the magnetic fields and the Fitzgerald vector, the Xcomponent and the Zcomponent, of the Fitzgerald vector, are considered as two separated potentials. Each of them is associated with an electromagnetic field, and the final solution is given by the sum of these two electromagnetic fields. The chapter then considers the joined contribution of both the X and Zcomponents of the Fitzgerald vector. It presents the comprehensive scattered field due to the buried magnetic anomalies. Finally, the chapter presents the internal and external scattering equations in the case of both dielectric and magnetic anomalies, or (which is the same) in the presence of targets with both dielectric and magnetic properties different from those of the embedding soil.

Harmonic Balance Methods Used in Computational Electromagnetics
The harmonic balance method is a powerful numerical technique for the analysis of highfrequency nonlinear circuits, and has been used to solve nonlinear microwave circuit problems. It is wellsuited for simulating analog RF and microwave circuits, since these are most naturally handled in the frequency domain. The method is commonly used to simulate circuits which include nonlinear elements. The harmonic balance technique was first introduced to analyze lowfrequency electromagnetics (EM) field problems. Harmonic balance techniques were combined with finite element method (FEM) to accurately solve the problems arising from timeperiodic steadystate nonlinear magnetic fields. The harmonic balance FEM (HBFEM) uses a linear combination of sinusoids to build the solution, and represents waveforms using the sinusoid; coefficients are combined with the finite element method. Harmonic balance can also be applied to EM field analysis, as the fields that contain the harmonics also satisfy Maxwell's equations.

fMRICompatible Robotic Interfaces with Fluidic Actuation
Actuation is a major challenge in the development of robotic systems intended to work in functional Magnetic Resonance Imaging (fMRI) procedures, due to the high magnetic fields and limited space in the scanner. Fluidic actuators can be made fMRIcompatible and are, thus, promising solutions. In this work we developed two robotic interface devices, one with hydraulic and another with pneumatic actuation, to control one degreeoffreedom translational movements of a user that performs fMRI tasks. Due to the fMRIcompatibility restrictions, special materials were used for the endeffector which works in the scanner bore, and active components such as the control valves and pressure sensors, had to be placed far away from the endeffector with long transmission lines in between. Therefore, the two fMRIcompatible setups differed from conventional fluidic actuation systems and brought control difficulties. Both systems have been proved to be fMRIcompatible and yield no image artifacts in a 3T scanner. Passive as well as active subject movements were realized by classical position and impedance controllers. With the hydraulic system we achieved smoother movements, higher position control accuracy and improved robustness against force disturbances than with the pneumatic system. In contrast, the pneumatic system was backdrivable, showed faster dynamics with relatively low pressure, and allowed force control. Furthermore, it is easier to maintain and does not cause hygienic problems after leakages. In general, pneumatic actuation is favorable for fast or forcecontrolled applications, whereas hydraulic actuation is recommended for applications that require high position accuracy, or slow and smooth movements.

Design Considerations of Biomedical Telemetry Devices
The specifications for an implantable medical device (IMD) are provided by the application but share a common set of constraints in size, power, and functionality. This chapter provides a brief overview of the design of biomedical telemetry devices and in particular IMDs using inductive links. The basic system architecture and inductive link fundamentals are discussed, as well as methods and circuits for power transfer and data communication. Safety issues relating to overheating of body tissue as a result of increase of temperature are also examined. There are several methods of harvesting energy for IMDs such as kinetic, thermoelectric, fuel cells, infrared radiation, low frequency magnetic fields, and inductive links. Data communication is called the downlink from the transmitter to the implant, and the uplink from the implant to the transmitter. Due to dual data and power transfer, the carrier amplitude is greater than or equal to the supply voltages.

This chapter considers discontinuity modeling based mostly on equivalent capacitor and inductor networks. Some discontinuities, however, especially an open¿¿¿circuited line, can also incorporate a short length of line. All practical distributed circuits must inherently contain discontinuities. The chapter shows the calculation of the reactive effects due to most discontinuities. Several forms of discontinuity emerge from circuit requirements such as, foreshortened open circuits, series coupling gaps, short circuits through to the ground plane, right¿¿¿angled corners or bends, step width changes, transverse slit, T junction and cross junctions. Discontinuities result in changes in current flow on the strip and ground plane of microstrip and force changes in the balance of the electric and magnetic fields. This can result in additional energy storage in the electric field and if this is the case the effect of the discontinuity is accounted for by a capacitance in the lumped¿¿¿element model of the discontinuity.

Twodimensional Electromagnetic Fields
This chapter contains sections titled: Transverse Magnetic Fields Conducting Cylinders, TM Case Various Approximations Transverse Electric Fields Conducting Cylinders, TE Case Alternative Formulation Dielectric Cylinders This chapter contains sections titled: References

Electromagnetics in Free Space
This chapter contains sections titled: Historical Survey The Transformation Equations for Electric and Magnetic Fields The Transformation Equations for the Source Densities Maxwell's Equations Integral Solutions of Maxwell's Equations in Terms of the Sources Conditions at Infinity The Potential Functions Magnetic Stored Energy Poynting's Theorem Solutions to the Wave Equation in Rectangular CoordinatesUnguided Waves Rectilinear Guided Waves Solutions to the Wave Equation in Cylindrical Coordinates Solutions to the Wave Equation in Spherical Coordinates Inductance Transformation of the Integral Solutions to Forms Suitable for Waveguide Problems A Minkowskian Formulation of the Field Equations This chapter contains sections titled: References Problems
Standards related to Magnetic Fields
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This standard provides methods for determining antenna factors of antennas used for radiated emission measurements of electromagnetic interference (EMI) from 9 kHz to 40 GHz. Antennas included are linearly polarized antennas, such as loops, rods (monopoles), tuned dipoles, biconical dipoles, logperiodic dipole arrays, hybrid linearly polarized arrays, broadband horns, etc., that are used in measurements governed by ANSI C63.42003.1 The ...
IEEE Guide for Measurement of Environmental Sensitivities of Standard Frequency Generators
This project is a revision of the existing guide for measurements of environmental sensitivities of standard frequency generators. It includes effects and metrology of acceleration; temperature, humidity, and pressure; electrical and magnetic fields; ionizing and particle radiation; and aging, warmup time and retrace.
IEEE Guide for the Measurement of QuasiStatic Magnetic and Electric Fields
This project describes measurement goals associated with characterizing quasistatic magnetic and electric fields, e.g. power frequency and other extremely low frequency fields, and available methods for accomplishing them. The guide should be used in conjunction with IEEE Std 13081994 (IEEE Recommended Practice for Instrumentation: Specifications for Magnetic Flux Density Meters  10 Hz to 3 kHz), which defines terminology and ...
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