scholarly journals Kalibracja małej anteny pętlowej

2020 ◽  
pp. 109-116
Author(s):  
Paweł Szczupak ◽  
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Anechoic Chamber ◽  
Helmholtz Coil ◽  
Loop Antenna ◽  
Magnetic Component ◽  
Small Loop

The article presents examples of calibration of a small loop antenna, witch can be used to measure the magnetic component of the electromagnetic field. The source of such a field may be, for example, lightning. There are many methods of calibration a loop antenna. Two of them are presented below – using test antenna with is calibrated and with known parameters, and using a homogenous magnetic field generated inside Helmholtz coil. Measurements using the first method were carried out in the anechoic chamber of the EMC laboratory.

scholarly journals Effect of Shielded Room on Magnetic-Field Measurement using Small Loop Antenna

1981 ◽  
Vol 101 (11) ◽  
pp. 590-590
Author(s):  
Hiroshi Nakane ◽  
Shunichi Omori ◽  
Hitoshi Maruyama ◽  
Ichiro Yokoshima
Keyword(s):  
Magnetic Field ◽  
Field Measurement ◽  
Loop Antenna ◽  
Magnetic Field Measurement ◽  
Small Loop

THE ELECTROMAGNETIC FIELD WITHIN A DISCONTINUOUS CONDUCTOR WITH REFERENCE TO GEOMAGNETIC MICROPULSATIONS NEAR A COASTLINE

1963 ◽  
Vol 41 (3) ◽  
pp. 484-495 ◽  
Author(s):  
J. T. Weaver
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Plane Surface ◽  
Low Frequency ◽  
Magnetic Component ◽  
Two Dimensional ◽  
Dimensional Problem ◽  
Magnetic Vector ◽  
Plane Normal ◽  
Frequency Approximation

The two-dimensional problem of a low-frequency, plane-polarized electromagnetic wave incident on a semi-infinite conducting medium with a plane surface is treated for the case when the medium has a discontinuity, the regions on either side of a plane normal to its surface being of different conductivities. Arguments are given to show that it is reasonable to assume, as a low-frequency approximation, that the tangential magnetic field is constant on the surface of the conductor. With the aid of this approximation, solutions are obtained for the two cases when (i) the magnetic vector (H polarization) and (ii) the electric vector (E polarization) is always parallel to the trace of the discontinuity.The model is discussed with reference to the behavior of geomagnetic micropulsations near a coastline, particular attention being paid to the E-polarization solution which contains a magnetic component normal to the surface of the conductor. The amplitude of this component at the surface is shown to increase sharply as the region of the discontinuity is approached, thus providing an explanation of the enhanced Z magnetic component in the micropulsation field observed at coastal stations.

Investigating flexible textile-based coils for wireless charging wearable electronics

2019 ◽  
Vol 50 (3) ◽  
pp. 333-345 ◽  
Author(s):  
Danmei Sun ◽  
Meixuan Chen ◽  
Symon Podilchak ◽  
Apostolos Georgiadis ◽  
Qassim S Abdullahi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electrical Conductivity ◽  
Electromagnetic Field ◽  
Electric Field ◽  
Dimensional Stability ◽  
Screen Printing ◽  
Wearable Electronics ◽  
Wireless Charging ◽  
The Magnetic Field ◽  
Screen Printed

Smart and interactive textiles have been attracted great attention in recent years. This research explored three different techniques and processes in developing textile-based conductive coils that are able to embed in a garment layer. Coils made through embroidery and screen printing have good dimensional stability, although the resistance of screen printed coil is too high due to the low conductivity of the print ink. Laser cut coil provided the best electrical conductivity; however, the disadvantage of this method is that it is very difficult to keep the completed coil to the predetermined shape and dimension. The tested results show that an electromagnetic field has been generated between the textile-based conductive coil and an external coil that is directly powered by electricity. The magnetic field and electric field worked simultaneously to complete the wireless charging process.

scholarly journals Neutrino Charge in a Magnetized Media

Galaxies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 22
Author(s):  
Avijit K. Ganguly ◽  
Venktesh Singh ◽  
Damini Singh ◽  
Ankur Chaubey
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Electro Magnetic Field ◽  
Thermal Medium ◽  
Charged Leptons ◽  
Electro Magnetic

In the presence of a thermal medium or an external electro-magnetic field, neutrinos can interact with photon, mediated by the corresponding charged leptons (real or virtual). The effect of a medium or an electromagnetic field is two-fold—to induce an effective [...]

Increasing the effective affect of the magnetic field on the weld pool

2021 ◽  
pp. 29-33
Author(s):  
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Magnetic Fields ◽  
Weld Pool ◽  
Electromagnetic Effects ◽  
Weld Pools ◽  
The Magnetic Field

Variants of weld pools obtained by verification with the influence of magnetic fields are considered. Methods for increasing the effectiveness of electromagnetic effects during welding are proposed. Keywords: welding, electromagnetic field, weld pool, induction, coating. [email protected], [email protected]

Electromagnetic interaction with the Klein–Gordon equation in the framework of GUP

2021 ◽  
Vol 18 (12) ◽  
Author(s):  
B. Khosropour
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Uncertainty Principle ◽  
Electric Potential ◽  
Uniform Magnetic Field ◽  
Gordon Equation ◽  
Electromagnetic Interaction ◽  
Generalized Uncertainty Principle ◽  
Klein Gordon ◽  
Klein Gordon Equation

In this work, according to the generalized uncertainty principle, we study the Klein–Gordon equation interacting with the electromagnetic field. The generalized Klein–Gordon equation is obtained in the presence of a scalar electric potential and a uniform magnetic field. Furthermore, we find the relation of the generalized energy–momentum in the presence of a scalar electric potential and a uniform magnetic field separately.

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