The Highly Effective EMI Shielding Materials for Electric and Magnetic Fields Over the Wide Range of Frequency in Near-Field Region

2019 ◽  
Author(s):  
Yoon-Hyun Kim ◽  
Kisu Joo ◽  
Kyu Jae Lee ◽  
Jung Woo Hwang ◽  
Seung Jae Lee ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Near Field ◽  
Field Region ◽  
Emi Shielding ◽  
Wide Range ◽  
Electric And Magnetic Fields ◽  
Highly Effective

Simultaneous Measurement of Electric and Magnetic Fields With a Dual Probe for Efficient Near-Field Scanning

2019 ◽  
Vol 67 (4) ◽  
pp. 2859-2864 ◽  
Author(s):  
Weiheng Shao ◽  
Wenxiao Fang ◽  
Yun Huang ◽  
Guangwei Li ◽  
Lei Wang ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Simultaneous Measurement ◽  
Near Field ◽  
Electric And Magnetic Fields ◽  
Near Field Scanning ◽  
Dual Probe

THE ELECTRIC AND MAGNETIC FIELDS AT THE SURFACE OF A FLAT CONDUCTING EARTH IN THE NEAR FIELD OF AN OSCILLATING LINE CURRENT

1966 ◽  
Vol 44 (8) ◽  
pp. 1923-1931 ◽  
Author(s):  
H. W. Dosso
Keyword(s):  
Magnetic Fields ◽  
Near Field ◽  
Numerical Calculations ◽  
Line Current ◽  
The Earth ◽  
Electric And Magnetic Fields ◽  
Phase Angles

The electric and magnetic fields at the surface of a flat conducting earth in the near field of an oscillating line current are studied in this work. The equations for the amplitudes and phase angles developed by Law and Fannin (1961) were used for the numerical calculations. The source heights (h = 105 to 4 × 105 meters), the source frequencies (ƒ = 10−3 to 10 sec−1), and the earth conductivities (σ = 10−5 to 10 mho/m) considered are of interest in geophysics.

Symmetry indications of the polarization state of light scattered by fluids in electric and magnetic fields

1980 ◽  
Vol 369 (1739) ◽  
pp. 517-535 ◽  
Keyword(s):  
Magnetic Fields ◽  
Rayleigh Scattering ◽  
Polarization State ◽  
Reciprocity Relations ◽  
Wide Range ◽  
Mueller Matrices ◽  
Electric And Magnetic Fields ◽  
Polarization States ◽  
Symmetry Operations ◽  
Insight Into

Spatial symmetry operations and reciprocity relations are used to estab­lish constraints on the forms of the Mueller matrices describing Rayleigh scattering by fluids, both in the absence or presence of electric and magnetic fields. Deduced forms of the scattering matrices are used to assess the response of a number of different scattering systems to six basic input polarization states; and in each case the analysed intensity components of the output beam transmitted by analysers which select each of the basic polarization states are evaluated in terms of the Mueller matrix elements. Tables of matrix forms and analysed scattered intensities are presented, the use of which provides systematic insight into a wide range of possible differential light-scattering experiments on fluids.

Analogue model measurements of electromagnetic variations in the near field of an oscillating line current

1968 ◽  
Vol 5 (1) ◽  
pp. 23-29 ◽  
Author(s):  
H. W. Dosso ◽  
J. A. Jacobs
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Current Model ◽  
Near Field ◽  
Analogue Model ◽  
Line Current ◽  
Earth’S Mantle ◽  
Electric And Magnetic Fields ◽  
Sheet Current ◽  
Conducting Zone

An analogue model for studying electromagnetic variations for an overhead oscillating line current is described. Measurements of electric and magnetic fields for model earth–sea interfaces are discussed and compared with results reported earlier for an overhead sheet current. A truncated cone representing a circular sea, a graphite wedge representing an ocean coastline, and a graphite wedge underlain by a graphite block representing an upwelling conducting zone in the earth's mantle near a sea coast are considered. In some cases the results for the line current model differ appreciably from those for the sheet current model, indicating that the nature of the source field can be an important factor in determining the behavior of the field components. The model measurements indicate that land–sea interfaces produce no appreciable anomalous magnetic fields at frequencies below 0.01 cps and hence the presence of the sea alone cannot account for coastal magnetic field anomalies. The results obtained for the model coastline structures tend to support the idea put forth by various workers that experimentally observed coastal magnetic field anomalies can in some cases be explained by assuming an upwelling conducting zone within the earth's mantle.

Measurement evaluations of static and low frequency magnetic fields in the near field region

Measurement ◽  
2011 ◽  
Vol 44 (8) ◽  
pp. 1412-1421 ◽  
Author(s):  
Saba A. Hanna ◽  
Yuichi Motai ◽  
Walter Varhue ◽  
Steve Titcomb
Keyword(s):  
Magnetic Fields ◽  
Near Field ◽  
Low Frequency ◽  
Field Region
Sign in / Sign up

Export Citation Format

Share Document