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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">omna</journal-id><journal-title-group><journal-title xml:lang="ru">Омский научный вестник</journal-title><trans-title-group xml:lang="en"><trans-title>Omsk Scientific Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-8225</issn><issn pub-type="epub">2541-7541</issn><publisher><publisher-name>Омский государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25206/1813-8225-2024-191-133-141</article-id><article-id custom-type="edn" pub-id-type="custom">TQIHST</article-id><article-id custom-type="elpub" pub-id-type="custom">omna-183</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>ЭЛЕКТРОНИКА, ФОТОНИКА, ПРИБОРОСТРОЕНИЕ И СВЯЗЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, PHOTONICS, APPLIANCE AND COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Импеданс проточной измерительной электрохимической ячейки с системой планарных встречно-штыревых микроэлектродов</article-title><trans-title-group xml:lang="en"><trans-title>Impedance of a flow-through measuring electrochemical cell with a system of planar interdigitated microelectrodes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3359-790X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козлов Александр Геннадьевич - доктор технических наук, доцент (Россия), профессор кафедры «Радиотехнические устройства и системы диагностики» ОмГТУ), SPIN-код: 5602-8275. AuthorID (РИНЦ) 28476. AuthorID (SCOPUS) 35616609300. ResearcherID: A-5997-2014.</p><p>Омск</p></bio><bio xml:lang="en"><p>Kozlov Aleksandr Gennadyevich - Doctor of Technical Sciences, Associate Professor, Professor of Radio Devices and Diagnostic Systems Department, OmSTU, SPIN-code: 5602-8275. AuthorID (RSCI): 28476. AuthorID (SCOPUS) 35616609300. ResearcherID: A-5997-2014.</p><p>Omsk</p></bio><email xlink:type="simple">agk252@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/0000-0001-9811-7511</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фадина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fadina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фадина Елена Александровна, старший преподаватель кафедры «Радиотехнические устройства и системы диагностики» ОмГТУ, SPIN-код: 7360-5447. AuthorID (РИНЦ): 685278. AuthorID (SCOPUS) 57193408354. ResearcherID: HKW-4525-2023.</p><p>Омск</p></bio><bio xml:lang="en"><p>Fadina Elena Aleksandrovna -Senior Lecturer of Radio Devices and Diagnostic Systems Department, OmSTU, SPIN-code: 7360-5447. AuthorID (RSCI): 685278. AuthorID (SCOPUS) 57193408354. ResearcherID: HKW-4525-2023.</p><p>Omsk</p></bio><email xlink:type="simple">fea1977@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Омский государственный технический университет<country>Россия</country></aff><aff xml:lang="en">Omsk State Technical University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>09</month><year>2024</year></pub-date><volume>0</volume><issue>3</issue><fpage>133</fpage><lpage>141</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козлов А.Г., Фадина Е.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Козлов А.Г., Фадина Е.А.</copyright-holder><copyright-holder xml:lang="en">Kozlov A.G., Fadina E.A.</copyright-holder><license 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://onv.omgtu.ru/jour/article/view/183">https://onv.omgtu.ru/jour/article/view/183</self-uri><abstract><p>В статье рассмотрена проточная электрохимическая ячейка с планарными встречно-штыревыми микроэлектродами, предназначенная для импедансных исследований жидких веществ. Для оценки влияния высоты ячейки и геометрических параметров встречно-штыревых микроэлектродов на импеданс ячейки предложен аналитический подход, в котором используется несколько уровней моделирования электрохимических процессов в ячейке. Вначале в структуре ячейки выделяется элементарная двумерная подобласть, для которой определяется распределение потенциала путем решения дифференциального уравнения электропроводности. Используя полученное распределение потенциала, определяются линейные параметры элементарной подобласти, ее линейное сопротивления и линейная емкость, на основе которых находятся сопротивление и емкость системы встречно-штыревых микроэлектродов. Импеданс электрохимической ячейки с встречно-штыревыми микроэлектродами определяется с помощью ее эквивалентной электрической схемы, которая включает сопротивление и емкость системы встречно-штыревых микроэлектродов, емкость двойного электрического слоя на поверхности каждого микроэлектрода и сопротивление выводов встречно-штыревых микроэлектродов. Используя выражение для импеданса электрохимической ячейки, определяются ее диаграммы Найквиста и Боде для различных значений высоты ячейки и геометрических параметров системы встречно-штыревых микроэлектродов (ширины штырей и расстояния между ними). Представленный аналитический подход может найти применение при анализе процессов в проточной электрохимической ячейке с встречно-штыревыми микроэлектродами, ее проектировании и разработке методического обеспечения для импедансных исследований жидких веществ с ее помощью.</p></abstract><trans-abstract xml:lang="en"><p>The article considers a flow-through electrochemical cell with planar interdigitated microelectrodes intended for impedance studies of liquids. To assess the influence of the cell height and geometric parameters of the interdigitated microelectrodes on the cell impedance, an analytical approach is proposed that uses several levels of modeling electrochemical processes in the cell. At first, an elementary two-dimensional subdomain is distinguished in the cell structure, for which the potential distribution is determined by solving the differential equation of electrical conductivity. Using the obtained potential distribution, the linear parameters of the elementary subdomain, its linear resistance and linear capacitance are determined, on the basis of which the resistance and capacitance of the interdigitated microelectrode system are found. The impedance of an electrochemical cell with interdigitated microelectrodes is determined using its equivalent electrical circuit, which includes the resistance and capacitance of the interdigitated microelectrode system, the capacitance of the double electric layer on the surface of each microelectrode, and the resistances of the interdigitated microelectrode leads. Using the expression for the impedance of the electrochemical cell, its Nyquist and Bode diagrams are determined for different values of the cell height and geometric parameters of the interdigitated microelectrode system. The presented approach can be used to analyze processes in a flow-through electrochemical cell with interdigitated microelectrodes, its design, and the development of methodological support for impedance studies of liquid substances with help of it.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электрохимическая ячейка</kwd><kwd>система встречно-штыревых микроэлектродов</kwd><kwd>импеданс</kwd><kwd>эквивалентная электрическая схема</kwd><kwd>диаграмма Найквиста</kwd><kwd>диаграмма Боде</kwd><kwd>модуль импеданса</kwd><kwd>аргумент импеданса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electrochemical cell</kwd><kwd>interdigitated microelectrode system</kwd><kwd>impedance</kwd><kwd>equivalent electrical circuit</kwd><kwd>Nyquist diagram</kwd><kwd>Bode diagram</kwd><kwd>impedance modulus</kwd><kwd>impedance argument</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена при финансовой поддержке Министерства образования и науки Российской Федерации в рамках федерального проекта «Подготовка кадров и научного фундамента для электронной промышленности» государственной программы Российской Федерации «Научно-технологическое развитие Российской Федерации». Соглашение о предоставлении субсидии № 075-02-2024-1533</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The work is carried out with financial support from the Ministry of Education and Science of the Russian Federation within the framework of the federal project «Training of personnel and scientific foundation for the electronics industry» of the state program of the Russian Federation «Scientific and technological development of the Russian Federation». Subsidy agreement No. 075-02-2024-1533</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">Lvovich V. F. Impedance spectroscopy: applications to electrochemical and dielectric phenomena. New Jersey: John Wiley &amp; Sons, 2012. 356 p. ISBN 978-0-470-62778-5.</mixed-citation><mixed-citation xml:lang="en">Lvovich V. F. 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