Abstract:
На певних смугах частот спостерігається зниження захисних властивостей екранів, особливо з прямокутними отворами, які часто зустрічаються у реальних виробничих
умовах. Були проведені дослідження для різних співвідношень довжин (l) і висот (h)
прямокутних отворів
Description:
Objective. Normalization of electromagnetic fields and radiation during the operation of electronic and electrical
equipment in production, considering the electromagnetic compatibility of technics in work environment in transition to the
"International Electromagnetic Compatibility Standards"; Generalization of developing the screening for electromagnetic
fields and radiation, which are aimed at improving their manufacturability, efficiency and practical significance.
Technique. Screening coefficients of electromagnetic fields and radiation of modern metallic shielding materials and
metal-polymer protective shields at various frequency ranges are analyzed. The protective properties of the electromagnetic
screen depending on the wavelength and parameters of the shielding grid are considered. The advantages and disadvantages
of defining the characteristics of shielding materials, which are regulated by national and international standards, are
identified.
Results. The most effective way to obtain sources of electromagnetic effects on workers and technics has been
determined. Methods are proposed for the application of electromagnetic screens, depending on the frequency characteristics
of most common sources of electromagnetic fields and radiation.
Scientific novelty. Recommendations are made on the shielding of electromagnetic fields and radiation of civil aviation
equipment and wireless communication equipment, considering the technical requirements and norms of international
standards for electromagnetic compatibility. Work has been improven to ensure electromagnetic safety and electromagnetic
compatibility of technical equipment in context of transition to the international standards of electromagnetic compatibility.
Practical significance. The proposed approach for determining the electromagnetic medium in the working
environment allows us to determine the sources of electromagnetic fields and effects of radiation on workers, electrical and
electronic devices and sensitive technical equipment.
