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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2023-3-49-54</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1520</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЭЛЕКТРОМАГНИТНЫЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTROMAGNETIC MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Магнитные свойства трубок-слоёв намагниченной цепочки шаров: контроль по измеренным магнитным параметрам сердцевин</article-title><trans-title-group xml:lang="en"><trans-title>Magnetic properties of pipe-layers of magnetized chain of spheres: a control based on measured magnetic properties of its cores</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5111-6092</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сандуляк</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sandulyak</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анна Александровна Сандуляк</p><p>Москва</p></bio><bio xml:lang="en"><p>Anna A. Sandulyak</p><p>Moscow</p></bio><email xlink:type="simple">sandulyak_d@mirea.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4269-6133</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сандуляк</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sandulyak</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дарья Александровна Сандуляк</p><p>Москва</p></bio><bio xml:lang="en"><p>Daria A. Sandulyak</p><p>Moscow</p></bio><email xlink:type="simple">d.sandulyak@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3852-6182</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горпиненко</surname><given-names>Ю. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorpinenko</surname><given-names>Y. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Олегович Горпиненко</p><p>Москва</p></bio><bio xml:lang="en"><p>Yurij O. Gorpinenko</p><p>Moscow</p></bio><email xlink:type="simple">linnetdar@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7605-2702</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сандуляк</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sandulyak</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Васильевич Сандуляк</p><p>Москва</p></bio><bio xml:lang="en"><p>Alexander V. Sandulyak</p><p>Moscow</p></bio><email xlink:type="simple">a.sandulyak@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8210-4721</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ершова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ershova</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вера Александровна Ершова</p><p>Москва</p></bio><bio xml:lang="en"><p>Vera A. Ershova</p><p>Moscow</p></bio><email xlink:type="simple">v.ershova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8144-6124</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Solovev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Анатольевич Соловьев</p><p>Москва</p></bio><bio xml:lang="en"><p>Igor A. Solovev</p><p>Moscow</p></bio><email xlink:type="simple">sia8811@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МИРЭА – Российский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>14</day><month>04</month><year>2023</year></pub-date><volume>0</volume><issue>3</issue><fpage>49</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/1520">https://www.izmt.ru/jour/article/view/1520</self-uri><abstract><p>Для решения научных и практических задач в области электромагнитных измерений необходима детализированная магнитная характеристика используемых в различных устройствах неоднородных сред. Характеристика получена на примере намагничивания базового элемента среды – цепочки гранул, шаров. Для измерения магнитных потоков в цепочке по её сердцевинам разного радиуса предложено применять круговые датчики-контуры на печатных платах. Размещение круговых датчиков между контактирующими шарами намагничиваемой цепочки позволило определить магнитные свойства не только сердцевин цепочки, но и её квазисплошных трубок-слоёв, ограниченных смежными датчиками. По экспериментально измеренным датчиками-контурами значениям магнитного потока в восьми сердцевинах цепочки с относительными радиусами 0,2–0,9 при напряжённости намагничивающего поля в диапазоне 10–55 кА/м установлены значения магнитного потока в семи трубках-слоях с относительными радиусами 0,25–0,85. Найдены значения магнитной восприимчивости трубок-слоёв, которые уменьшаются согласно обратной степенной зависимости с показателем степени 2,4 с увеличением относительного радиуса. В сравнительно коротких цепочках с числом шаров 2–8 установлены и функционально аппроксимированы значения размагничивающего фактора трубок-слоёв. Полученные результаты можно использовать для изучения условий формирования зон, ответственных за магнитный захват магнитоактивных частиц между гранулами рабочих органов (матричного типа) полиградиентных магнитных сепараторов и анализаторов.</p></abstract><trans-abstract xml:lang="en"><p>The use of circular contour sensors on printed circuit boards placed between contacting spheres with radius R in the magnetized chain of balls makes it possible to measure magnetic microflows in the chain along its cores of different radius rc. Thus, it becomes possible to obtain information about the magnetic properties of not only the cores of the chain themselves, but also its pipe quasi-functional layers limited by adjacent sensors. It is the purpose of the work. According to the magnetic flux measured with the help of well-recommended contour sensors (eight: from rc/R from 0.2 to 0.9) at magnetizing fi eld intensity in the range of 10–55 kA/m, magnetic flux is established along seven pipe-layers of relative radius rp/R (from 0.25 to 0.85). The values χp of their magnetic susceptibility were found, as the rp/R values increase χp-values decrease according to the inverse power dependence with a power degree equals 2.4. The values of the demagnetizing factor are set and functionally approximated for pipe-layers in relatively short chains of different lengths (with a number of spheres from 2 to 8). The obtained information expands idea about magnetization a chain of granules as the basic element of the granular medium. This information is useful in detailing the characteristics of such heterogeneous media used to solve scientific and practical problems, in particular, to clarify the conditions for building zones that are responsible for the magnetic capture of magnetoactive particles between granules of working elements (matrix type) of polygradient magnetic separators and analyzers.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>датчик на печатной плате</kwd><kwd>цепочка шаров</kwd><kwd>сердцевина цепочки</kwd><kwd>трубки-слои</kwd><kwd>магнитный поток</kwd><kwd>восприимчивость</kwd><kwd>размагничивающий фактор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sensors on printed board</kwd><kwd>chain of spheres</kwd><kwd>cores and pipe layers</kwd><kwd>magnetic flux</kwd><kwd>susceptibility</kwd><kwd>demagnetizing factor</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Birčáková Z., Kollár P., Weidenfeller B., Füzer J., Fáberová M., Bureš R. 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