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Book Cover
E-book
Author Grudziński, Eugeniusz

Title Electromagnetic field standards and exposure systems / Eugeniusz Grudzinski and Hubert Trzaska
Published Edison, NJ : SciTech Publishing, [2014]
©2014
Table of Contents
 Prefaceix
 Forewordxi
 Acknowledgmentsxii
1.Introduction1
2.EMF of an arbitrary structure7
2.1.The near and the far field7
2.2.EMF of a thin, symmetric, resonant dipole antenna11
2.3.Homogeneity of EMF near a resonant dipole13
2.4.EMF of a small loop antenna17
2.5.Homogeneity of EMF near small loop18
3.Methods of the standard EMF generation25
3.1.Calibration of meters with dipole antennas25
3.1.1.Calibration with the standard field method26
3.1.2.Calibration with the substitution method28
3.1.3.Calibration of meters with whip antennas29
3.2.Calibration of meters with loop antennas32
3.2.1.Calibration with the standard field method33
3.2.2.Calibration with the substitution method35
3.2.3.Calibration of meters with whip antennas37
3.3.Calibration of meters with directional antennas39
3.4.Meter calibration with the use of guided waves41
3.4.1.Calibration in the field of a plate capacitor42
3.4.2.EMF standards with a traveling wave line43
3.4.3.A waveguide as a standard EMF source45
3.5.Secondary standards and exposure systems46
3.5.1.Chamber methods47
3.5.2.Examples of TEM chambers49
3.5.3.Other types of secondary standards54
4.Accuracy analysis of EMF standards with dipole antennas63
4.1.Accuracy analysis63
4.2.Choice of the OATS68
4.3.Measurement of the electrical parameters of the ground72
4.4.Analysis of the accuracy of the SRA standard74
4.4.1.Electromotive force measurement with a thermocouple77
4.4.2.Voltage measurement using a selective voltmeter79
4.4.3.Electromotive force measurement using a diode detector80
4.5.Analysis of the accuracy of the STA method81
4.6.Directional antenna calibration85
4.6.1.E-field averaging along the antenna88
4.6.2.Role of the radiation pattern89
5.Accuracy analysis of EMF standards with loop antennas93
5.1.Accuracy analysis of the SRA standard93
5.1.1.Error in eA measurement94
5.1.2.Error in loop surface area measurement94
5.1.3.Error in frequency measurements95
5.1.4.Other factors limiting the standard's accuracy95
5.2.Accuracy analysis of an STA standard97
5.2.1.Accuracy of the current measurement97
5.2.2.Accuracy of linear size measurement97
5.2.3.Error due to noncentric placement of the antennas98
5.2.4.Other factors limiting the standard's accuracy99
5.3.An EMF standard with Helmholtz coils104
6.Accuracy analysis of EMF standards with a segment of a transmission line111
6.1.EMF in a strip line112
6.2.Wave impedance of a TEM cell113
6.3.Accuracy of the line accomplishment and its role in line accuracy limitation116
6.4.Disturbances of the wave impedance118
6.5.Line excitation measurement accuracy123
6.5.1.Inaccuracy due to input voltage measurement125
6.5.2.Inaccuracy due to simultaneous input and output voltage measurement126
6.5.3.Inaccuracy due to incident voltage measurement127
6.6.Accuracy of the EMF standard with a segment of a transmission line130
6.7.Homogeneity of EMF in a TEM cell131
6.8.An OUT in a TEM cell135
6.8.1.An EMF probe in a TEM cell135
6.8.2.A TEM cell as an exposure system142
6.8.3.Absorption and polarization147
7.Accuracy analysis of the standards with horn antennas151
7.1.Accuracy of determination of the power gain153
7.2.Accuracy of excitation measurement159
7.2.1.Accuracy of power measurements160
7.2.2.Accuracy of transmitting antenna excitation measurement161
7.3.Accuracy of the standard estimation162
7.3.1.Accuracy estimations of the SRA standard162
7.3.2.Accuracy estimations of the STA standard163
7.4.Nonstationary EMF standard164
8.Comparative analysis of the EMF standards169
8.1.Double calibration method169
8.2.Comparison of different type standards171
8.3.International EMF standards comparison173
8.4.Necessity of calibrations178
9.Final comments187
 References193
 Index197

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Description 1 online resource (214 pages) : illustrations
Series SciTech series on electromagnetic compatibility
SciTech series on electromagnetic compatibility.
Contents Preface; Foreword; Acknowledgments; 1. Introduction; 2. EMF of an arbitrary structure; 3. Methods of the standard EMF generation; 4. Accuracy analysis of EMF standards with dipole antennas; 5. Accuracy analysis of EMF standards with loop antennas; 6. Accuracy analysis of EMF standards with a segment of a transmission line; 7. Accuracy analysis of the standards with horn antennas; 8. Comparative analysis of the EMF standards; 9. Final comments; References; Index
Summary The book reviews developments in the following fields: standard EMF generation; accuracy analysis; dipole antennas; loop antennas; transmission line segment; and horn antennas
Bibliography Includes bibliographical references and index
Notes English
Online resource; title from PDF title page (ebrary, viewed February 4, 2014)
Subject Electromagnetic fields -- Mathematics
Electromagnetic fields.
Electromagnetic measurements.
electromagnetism.
SCIENCE -- Energy.
SCIENCE -- Mechanics -- General.
SCIENCE -- Physics -- General.
Electromagnetic fields
Electromagnetic fields -- Mathematics
Electromagnetic measurements
Form Electronic book
Author Trzaska, Hubert
ISBN 9781613531815
1613531818
9781628704310
1628704314