On the nature of sources of audio-frequency electromagnetic interferences

Authors

DOI:

https://doi.org/10.3103/S073527271610006X

Keywords:

electromagnetic compatibility, EMC, electromagnetic interference, magnetic field, mechanical vibrations, non-ferromagnetic metal element

Abstract

It has been shown that metal elements of electronic equipment executing mechanical vibrations under exposure to the dc or low-frequency magnetic field could be sources of low-frequency electromagnetic interferences. The general solution of a boundary problem of electrodynamics was obtained that dealt with the electromagnetic field emission by a rod with circular cross-section made of metal of the non-ferromagnetic group under harmonic elastic oscillations in the dc magnetic field. A model example was considered for the situation where a source of low-frequency electromagnetic field was the rod with circular cross-section that executed longitudinal harmonic oscillations of compression–tension at the transverse dc magnetic field. An estimation of numerical values of the intensity of low-frequency magnetic field and the induced voltage of interference were also provided.

Author Biography

Oleg N. Petrischev, Kyiv Scientific Research Institute of Hydrodevices

(2016) National Technical University of Ukraine "Kyiv Polytechnic Institute"

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Published

2016-10-18

Issue

Section

Research Articles