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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">10.25206/1813-8225-2024-192-134-138</article-id><article-id custom-type="edn" pub-id-type="custom">IXAXOD</article-id><article-id custom-type="elpub" pub-id-type="custom">omna-117</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>Преобразователь ток-частота на основе осциллисторного эффекта</article-title><trans-title-group xml:lang="en"><trans-title>Current-to-frequency converter based on oscillistor effect</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>Чередов</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Cheredov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ЧЕРЕДОВ Александр Иванович, кандидат технических наук, доцент (Россия), доцент кафедры «Радиотехнические устройства и системы диагностики»</p><p>г. Омск</p><p>AuthorID (РИНЦ): 471995</p></bio><bio xml:lang="en"><p>CHEREDOV Aleksandr Ivanovich, Candidate of Technical Sciences, Associate Professor, Associate Professor of Radio Engineering Devices and Diagnostic Systems Department</p><p>Omsk</p><p>AuthorID (RSCI): 471995</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1354-8708</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щелканов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchelkanov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ЩЕЛКАНОВ Андрей Владимирович, старший преподаватель кафедры «Радиотехнические устройства и системы диагностики»</p><p>г. Омск</p><p>AuthorID (SCOPUS): 56447045400</p><p>ResearcherID: P-9053-2015</p></bio><bio xml:lang="en"><p>SHCHELKANOV Andrey Vladimirovich, Senior Lecturer of Radio Engineering Devices and Diagnostic Systems Department</p><p>Omsk</p><p>AuthorID (SCOPUS): 56447045400</p><p>ResearcherID: P-9053-2015</p></bio><email xlink:type="simple">shchelkanov@omgtu.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>12</month><year>2024</year></pub-date><volume>0</volume><issue>4</issue><fpage>134</fpage><lpage>138</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чередов А.И., Щелканов А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Чередов А.И., Щелканов А.В.</copyright-holder><copyright-holder xml:lang="en">Cheredov A.I., Shchelkanov A.V.</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/117">https://onv.omgtu.ru/jour/article/view/117</self-uri><abstract><p>Рассматривается возможность построения измерительных преобразователей постоянного тока, осуществляющих прямое преобразование тока в частоту переменного тока. Чувствительный элемент преобразователя представляет собой германиевый осциллистор. Приведены зависимости частоты от тока, полученные в ходе теоретических и экспериментальных исследований. Представлена конструкция преобразователя ток-частота и приведены его характеристики.</p></abstract><trans-abstract xml:lang="en"><p>The article examines the development of a system for monitoring the volumetric supply of liquid in pumping units. The relevance of the research is due to the growing requirements for automation of control of pumping systems. The key element of the system is the observer, which allows evaluating the main parameters of the installation, such as the pump rotation speed and the moment of resistance. The electric drive of the pump uses an asynchronous motor with a squirrel-cage rotor, the rotation speed of which is controlled. The pressure in the discharge pipeline is created by a centrifugal pump. The observer is based on a model of an asynchronous motor in a fixed coordinate system, and the Luenberger observer is used to estimate the rotation speed and torque of the pump. To identify the volume flow, a centrifugal pump model is used, parameterized by a second-degree polynomial. The authors present simulation results showing the high accuracy of the developed observer, with an error of no more than 3% in steady state. The results demonstrate the effectiveness of the proposed approach for constructing a monitoring system for pumping units.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электронно-дырочная плазма</kwd><kwd>преобразователь</kwd><kwd>осциллистор</kwd><kwd>колебания тока</kwd><kwd>частота</kwd><kwd>электрическое поле</kwd><kwd>напряженность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>flow identifier</kwd><kwd>asynchronous electric drive</kwd><kwd>Luenberger observer</kwd><kwd>centrifugal pump</kwd><kwd>double squirrel cage rotor</kwd><kwd>pumping unit</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">Li W., Liu L., Shi R. [et al.]. Acoustoelectric Voltage Sensor Based on S0 Mode Lamb Wave Resonator with Millivolt Resolution // 2023 IEEE International Ultrasonics Symposium (IUS), Montreal, QC, Canada. 2023. P. 1–4. 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