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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">mireabulletin</journal-id><journal-title-group><journal-title xml:lang="ru">Russian Technological Journal</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Technological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-3210</issn><issn pub-type="epub">2500-316X</issn><publisher><publisher-name>RTU MIREA</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2500-316X-2017-5-6-43-54</article-id><article-id custom-type="elpub" pub-id-type="custom">mireabulletin-94</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>АНАЛИТИЧЕСКОЕ ПРИБОРОСТРОЕНИЕ И ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ANALYTICAL INSTRUMENT ENGINEERING AND TECHNOLOGY</subject></subj-group></article-categories><title-group><article-title>МАГНЕТОМЕТР ФАРАДЕЯ С ПОЛЮСНЫМИ НАКОНЕЧНИКАМИ-ПОЛУСФЕРАМИ: ИДЕНТИФИКАЦИЯ ЗОНЫ СТАБИЛЬНОГО СИЛОВОГО ФАКТОРА</article-title><trans-title-group xml:lang="en"><trans-title>FARADAY MAGNETOMETER WITH SHERIC POLE PIECES: IDENTIFICATION ZONE WITH A STABLE FORCE FACTOR</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>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sandulyak</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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><email xlink:type="simple">noemail@neicon.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>M. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Киселев</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kiselev</surname><given-names>D. O.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sandulyak</surname><given-names>D. A.</given-names></name></name-alternatives><email xlink:type="simple">d.sandulyak@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Тechnological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>28</day><month>12</month><year>2017</year></pub-date><volume>5</volume><issue>6</issue><fpage>43</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сандуляк А.В., Сандуляк А.А., Полисмакова М.Н., Киселев Д.О., Сандуляк Д.А., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Сандуляк А.В., Сандуляк А.А., Полисмакова М.Н., Киселев Д.О., Сандуляк Д.А.</copyright-holder><copyright-holder xml:lang="en">Sandulyak A.V., Sandulyak A.A., Polismakova M.N., Kiselev D.O., Sandulyak D.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.rtj-mirea.ru/jour/article/view/94">https://www.rtj-mirea.ru/jour/article/view/94</self-uri><abstract><p>Оценены принципиальные положения и направления в создании устройств для изучения магнитной восприимчивости образцов методом Фарадея. Обращено внимание на существующую проблему идентификации рабочей зоны, ответственной за координацию в ней малообъемных образцов. Сформулированы предпосылки к безусловному проявлению зоны стабильности градиента напряженности (индукции) поля как необходимого, но недостаточного условия наличия зоны стабильности магнитного силового фактора - произведения напряженности или индукции поля на ее градиент. Показано, что наметившаяся тенденция в создании магнетометров Фарадея связана с применением сильного постоянного магнита, обращенного полюсной поверхностью к изучаемому образцу. Однако, по нашему мнению, нецелесообразно рассматривать это направление как перспективное из-за отсутствия предпосылок для проявления зоны стабильности, как градиента, так и силового фактора. Вряд ли приемлемо создание магнетометров Фарадея с применением таких взаимно наклонных катушек, которые формируют поле стабильного градиента, также вследствие отсутствия возможности для проявления зоны стабильности силового фактора. На примере сферических полюсных наконечников, рекомендуемых к использованию в магнетометрах Фарадея, доказано безусловное наличие зон, где индивидуальные значения градиента и магнитного силового фактора являются стабильными, т.е. в окрестности экстремумов этих параметров, установлены и сопоставлены их координаты. Показано, что абсциссы экстремумов остаются практически неизменными для каждого из расстояний между полюсными наконечниками, независимо от токовой нагрузки, причем экстремумы силового фактора располагаются на 30-40% ближе к осевой линии полюсов, чем экстремумы градиента. Обнаружено влияние расстояния между полюсными наконечниками на значения абсцисс экстремумов градиента и силового фактора (логарифмическая связь), а также на значения их ординат (степенная связь).</p></abstract><trans-abstract xml:lang="en"><p>Basic principles and approaches in generation of devices for realization Faraday method are evaluated (for learning magnetic susceptibility of samples). It is noticed that problem exists - it is difficult to identify an operating area to coordinate here samples with a small volume. It was defined a prerequisites for an appearance area with a stable value of magnetic field intensity (induction) gradient of magnetic field. Presence such zone is a necessary but not sufficient condition for presence a zone with a stable value of magnetic forceful factor (as a product of field intensity or pole induction by its gradient). It was shown that developing direction in creating a Faraday magnetometer with a strong permanent magnet which pole surface is faced to sample is impractical because there is no prerequisites for an appearance stable zone both gradient and magnetic forceful factor. A creating Faraday magnetometer with mutually canted coils is hardly practical too. These coils generate magnetic field with a stable gradient but not with a stable magnetic forceful factor. By the example of spheric pole pieces (recommended for using at Faraday magnetometer) presence an areas with stable gradient and magnetic forceful factor is proved (at the range of their extremum values). Range of such areas is defined and compared to each other. It was shown that absciss values of extremum are almost stable (for each distance between pole pieces, regardless of current load), magnetic forceful factor's extremum are close to axis of magnet pole for about 30-40% than gradient's extremum. There were defined the influence of distance between pole pieces on absciss values of extremums of gradient and magnetic forceful factor (a logarithmic dependence) and on their ordinate values (power dependence).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>магнетометр Фарадея</kwd><kwd>индукция</kwd><kwd>градиент</kwd><kwd>магнитный силовой фактор</kwd><kwd>зона в окрестности экстремума</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Faraday magnetometer</kwd><kwd>induction</kwd><kwd>gradient</kwd><kwd>magnetic forceful factor</kwd><kwd>range of extremum values</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">Baskar D., Adler S.B. High temperature Faraday balance for in situ measurement of magnetization in transition metal oxides // Review of Scientific Insruments. 2007. V. 78. P.023908 (1-6).</mixed-citation><mixed-citation xml:lang="en">Baskar D., Adler S.B. 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