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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">pribor</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Приборостроение</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Instrument Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3454</issn><issn pub-type="epub">2500-0381</issn><publisher><publisher-name>Национальный исследовательский университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/0021-3454-2023-66-7-602-611</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-140</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>ПРИБОРЫ И МЕТОДЫ КОНТРОЛЯ И ДИАГНОСТИКИ МАТЕРИАЛОВ, ИЗДЕЛИЙ, ВЕЩЕСТВ И ПРИРОДНОЙ СРЕДЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METHODS AND INSTRUMENTS FOR ANALYSIS AND MONITORING OF THE NATURAL ENVIRONMENT, SUBSTANCES, MATERIALS AND PRODUCTS</subject></subj-group></article-categories><title-group><article-title>Методика пондеромоторного контроля магнитной восприимчивости дисперсных образцов и частиц железосодержащих сорбентов</article-title><trans-title-group xml:lang="en"><trans-title>Method of ponderomotive control of magnetic susceptibility of disperse samples and particles of ironcontaining sorbents</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><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 - канд. техн. наук; кафедра приборов и информационно-измерительных систем</p><p>Москва</p></bio><bio xml:lang="en"><p>Darya A. Sandulyak - PhD; Department of Instruments and Information Measuring Systems; Associate Professor</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"><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 - д-р техн. наук, профессор; кафедра приборов и информационно-измерительных систем</p><p>Москва</p></bio><bio xml:lang="en"><p>Anna A. Sandulyak - Dr. Sci., Professor; Department of Instruments and Information Measuring Systems</p><p>Moscow</p></bio><email xlink:type="simple">anna.sandulyak@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полисмакова</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Polismakova</surname><given-names>М. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Николаевна Полисмакова - канд. техн. наук, доцент; кафедра приборов и информационно-измерительных систем</p><p>Москва</p></bio><bio xml:lang="en"><p>Maria N. Polismakova - PhD, Associate Professor; Department of Instruments and Information Measuring Systems</p><p>Moscow</p></bio><email xlink:type="simple">m.polismakova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><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 - канд. техн. наук; лаборатория магнитного контроля и разделения материалов; ст. научный сотрудник</p><p>Москва</p></bio><bio xml:lang="en"><p>Vera A. Ershova - PhD; Laboratory of Magnetic Control and Material’s Separation; Senior Researcher</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"><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 - д-р техн. наук, профессор; кафедра приборов и информационно-измерительных систем</p><p>Москва</p></bio><bio xml:lang="en"><p>Alexander V. Sandulyak - Dr. Sci., Professor; Department of Instruments and Information Measuring Systems</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Курмышева</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurmysheva</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александра Юрьевна Курмышева - канд. техн. наук; лаборатория жидкофазных каталитических и электро-каталитических процессов; научный сотрудник; МГТУ СТАНКИН, лаборатория искрового плазменного спекания</p><p>Москва</p></bio><bio xml:lang="en"><p>Alexandra Yu. Kurmysheva — PhD; Laboratory of Liquid-phase Catalytic and Electrocatalytic Processes; Researcher; Moscow State University of Technology “STANKIN”</p><p>Moscow</p></bio><email xlink:type="simple">aukurm@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><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 - аспирант; кафедра приборов и информационно-измерительных систем</p><p>Москва</p></bio><bio xml:lang="en"><p>Igor A. Solovev - Post-Graduate Student; Department of Instruments and Information Measuring Systems</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></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт органической химии им. Н. Д. Зелинского РАН</institution></aff><aff xml:lang="en"><institution>N. D. Zelinsky Institute of Organic Chemistry of the RAS</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>27</day><month>11</month><year>2024</year></pub-date><volume>66</volume><issue>7</issue><fpage>602</fpage><lpage>611</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Национальный исследовательский университет ИТМО</copyright-holder><copyright-holder xml:lang="en">Национальный исследовательский университет ИТМО</copyright-holder><license xlink:href="https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://pribor.ifmo.ru/jour/article/view/140">https://pribor.ifmo.ru/jour/article/view/140</self-uri><abstract><p>Для повышения результативности применения порошковых магнитных сорбентов в технологии очистки сточных вод, когда одной из ключевых стадий этой технологии является оперативное выделение отработанного сорбента магнитной сепарацией, требуется контроль магнитной восприимчивости χ частиц таких сорбентов. Анализируется методология ее определения, основанная на получении экспериментальной зависимости магнитной восприимчивости дисперсного образца  от объемной доли γ в нем контролируемых частиц, где идентифицируемый линейный начальный участок этой зависимости (ограничиваемый критериальным значением γ = [γ]) свидетельствует о практическом отсутствии магнитного взаимодействия частиц. Тогда при γ ≤ [γ] значения χ определяются как χ =  /γ. Пондеромоторным методом с использованием модернизированного магнетометра с полюсами сферической формы для создания требуемой зоны стабильной неоднородности поля получена зависимость  от γ для магнитного сорбента (углеродного, с включениями магнетита и маггемита) и установлено значение [γ]. По величине  из ее линейного участка, до критериального значения [γ], определена магнитная восприимчивость χ частицы в поле напряженностью H = 61кА/м. Представляется возможным также получить развернутую полевую зависимость для χ.  </p></abstract><trans-abstract xml:lang="en"><p>In order to increase the efficiency of using powder magnetic sorbents in water purification technology, when one of the key stages of this technology is the rapid isolation of spent sorbent by magnetic separation, the control of the magnetic susceptibility χ of the individual particles of such sorbents is needed. The analyzed methodology of determining magnetic susceptibility is based on obtaining experimental dependence of the magnetic susceptibility  of the dispersed sample on the volume fraction γ in it of controlled particles and identifying the linear initial section of this dependence (limited by criterion value γ = [γ]), the specified section of this dependence indicates the practical absence of magnetic interaction of the particles. So at γ = [γ], χ -values are determined as χ =  /γ. By ponderomotive method (using modernized magnetometer with spherical pole pieces for creating zone of a stable inhomogeneity field) γ dependence of  is obtained for magnetic sorbent (carbon sorbent with inclusions of magnetite and maggemite), and value of [γ] is found. The magnetic susceptibility χ of the particle in the field of strength H = 61 kA/m is determined from its linear section, up to the criterion value [γ]. It also seems possible to obtain an expanded field dependence for χ.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>железосодержащий сорбент</kwd><kwd>магнитная восприимчивость</kwd><kwd>модернизированный магнетометр пондеромоторного типа</kwd><kwd>критерий объемной доли частиц</kwd></kwd-group><kwd-group xml:lang="en"><kwd>iron-containing sorbent</kwd><kwd>magnetic susceptibility</kwd><kwd>modernized ponderomotive-type magnetometer</kwd><kwd>criterion of volume fraction of particles</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">исследование выполнено при финансовой поддержке Министерства науки и высшего образования РФ в рамках госзадания в сфере науки — проект № 0706-2020-0024.</funding-statement><funding-statement xml:lang="en">the research was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation, project No. 0706-2020-0024.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Фоменкова А.А. 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