Eddy-Current Nondestructive Evaluation
Eddy-Current Nondestructive Evaluation

Author: Nicola Bowler

Publisher: Springer

Published: 2019-08-01

Total Pages: 232

ISBN-13: 1493996290

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This book covers the topic of eddy current nondestructive evaluation, the most commonly practiced method of electromagnetic nondestructive evaluation (NDE). It emphasizes a clear presentation of the concepts, laws and relationships of electricity and magnetism upon which eddy current inspection methods are founded. The chapters include material on signals obtained using many common eddy current probe types in various testing environments. Introductory mathematical and physical concepts in electromagnetism are introduced in sufficient detail and summarized in the Appendices for easy reference. Worked examples and simple calculations that can be done by hand are distributed throughout the text. These and more complex end-of-chapter examples and assignments are designed to impart a working knowledge of the connection between electromagnetic theory and the practical measurements described. The book is intended to equip readers with sufficient knowledge to optimize routine eddy current NDE inspections, or design new ones. It is useful for graduate engineers and scientists seeking a deeper understanding of electromagnetic methods of NDE than can be found in a guide for practitioners.

Eddy Current Approximation of Maxwell Equations
Eddy Current Approximation of Maxwell Equations

Author: Ana Alonso Rodriguez

Publisher: Springer Science & Business Media

Published: 2010-11-22

Total Pages: 355

ISBN-13: 8847015065

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This book deals with the mathematical analysis and the numerical approximation of eddy current problems in the time-harmonic case. It takes into account all the most used formulations, placing the problem in a rigorous functional framework.

Numerical Modelling of Eddy Currents
Numerical Modelling of Eddy Currents

Author: Andrzej Krawczyk

Publisher:

Published: 2023

Total Pages: 0

ISBN-13: 9781383030846

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Eddy currents appear in electromagnetic devices whenever a magnetic field varies through a conductor. They are often undesirable and represent a power loss. This text looks at numerical modelling methods for the prediction of eddy currents.

Finite Element Analyses of Eddy Current Effects in Turbogenerators
Finite Element Analyses of Eddy Current Effects in Turbogenerators

Author: S. C. Bhargava

Publisher: CRC Press

Published: 2017

Total Pages: 0

ISBN-13: 9781138079236

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Book focusses on study of various aspects of eddy currents, from the basic phenomenon to their utilization in various applications, and their detrimental effects, esp. in large Turbogenerators. It gives details of the finite‐element technique(s) to analyse the steady‐state and transient heating of key regions of turbogenerators.

Nonlinear Diffusion of Electromagnetic Fields
Nonlinear Diffusion of Electromagnetic Fields

Author:

Publisher: Elsevier

Published: 1998-04-28

Total Pages: 429

ISBN-13: 0080537693

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Nonlinear Diffusion of Electromagnetic Fields covers applications of the phenomena of non-linear diffusion of electromagnetic fields, such as magnetic recording, electromagnetic shielding and non-destructive testing, development of CAD software, and the design of magnetic components in electrical machinery. The material presented has direct applications to the analysis of eddy currents in magnetically nonlinear and hysteretic conductors and to the study of magnetization processes in electrically nonlinear superconductors. This book will provide very valuable technical and scientific information to a broad audience of engineers and researchers who are involved in these diverse areas. - Contains extensive use of analytical techniques for the solution of nonlinear problems of electromagnetic field diffusion - Simple analytical formulas for surface impedances of nonlinear and hysteretic media - Analysis of nonlinear diffusion for linear, circular and elliptical polarizations of electromagnetic fields - Novel and extensive analysis of eddy current losses in steel laminations for unidirectional and rotating magnetic fields - Preisach approach to the modeling of eddy current hysteresis and superconducting hysteresis - Extensive study of nonlinear diffusion in superconductors with gradual resistive transitions (scalar and vertorial problems)

Eddy Current Analysis in Fusion Devices
Eddy Current Analysis in Fusion Devices

Author:

Publisher:

Published: 1988

Total Pages:

ISBN-13:

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In magnetic fusion devices, particularly tokamaks and reversed field pinch (RFP) experiments, time-varying magnetic fields are in intimate contact with electrically conducting components of the device. Induced currents, fields, forces, and torques result. This note reviews the analysis of eddy current effects in the following systems: Interaction of a tokamak plasma with the eddy currents in the first wall, blanket, and shield (FWBS) systems; Eddy currents in a complex but two-dimensional vacuum vessel, as in TFTR, JET, and JT-60; Eddy currents in the FWBS system of a tokamak reactor, such as NET, FER, or ITER; and Eddy currents in a RFP shell. The cited studies are chosen to be illustrative, rather than exhaustive. 42 refs.