2018
DOI: 10.15587/1729-4061.2018.123622
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Design and study of protective properties of electromagnetic screens based on iron ore dust

Abstract: Обґрунтовано використання залізорудного пилу для виготовлення електромагнітних екранів. Розроблено технологію виготовлення екранів. Збільшення дисперсності частинок до 20 разів підвищує коефіцієнт екранування поля надвисокої частоти у 8 разів. Коефіцієнт відбиття знижується до 0,10. Коефіцієнт екранування магнітного поля промислової частоти за вмісту екрануючої субстанції 12 % становить 2,2. Визначені електрофізичні властивості екрана Ключові слова: електромагнітний екран, залізорудний пил, коефіцієнт екранува… Show more

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Cited by 13 publications
(15 citation statements)
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“…In addition to the impact on people, this can affect the stability of operation of electronic equipment (electromagnetic compatibility). In order to determine a possibility of avoiding the effect of such radiation on staff, we investigated reflection coefficients K r for the obtained composite material depending on the content of a metallic substance ρ in line with a procedure given in [6] (Table 3). Table 3 Dependence of reflection coefficients of electromagnetic fields of ultra-high frequencies on the content of a metallic substance ρ, % 5 10 15 20 K r 0.06 0.11 0.28 0.32…”
Section: Results Of Studying the Protective Properties Of Electromagnmentioning
confidence: 99%
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“…In addition to the impact on people, this can affect the stability of operation of electronic equipment (electromagnetic compatibility). In order to determine a possibility of avoiding the effect of such radiation on staff, we investigated reflection coefficients K r for the obtained composite material depending on the content of a metallic substance ρ in line with a procedure given in [6] (Table 3). Table 3 Dependence of reflection coefficients of electromagnetic fields of ultra-high frequencies on the content of a metallic substance ρ, % 5 10 15 20 K r 0.06 0.11 0.28 0.32…”
Section: Results Of Studying the Protective Properties Of Electromagnmentioning
confidence: 99%
“…The most difficult task is determining the effective magnetic permeability of a material to estimate the required thickness of a screen. With the experimental data regarding the shielding of a magnetic field of industrial frequency for a cylindrical solid screen, it becomes possible to precisely calculate the value for effective magnetic permeability m [6]:…”
Section: Discussion Of Results Of Studying the Protective Properties mentioning
confidence: 99%
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