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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.2023-6-40-45</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1874</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>МЕХАНИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MECHANICAL MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Повышение устойчивости работы преобразователей вихревых колебаний контактно-кондуктометрических вихревых расходомеров сточных вод целлюлозно-бумажного производства</article-title><trans-title-group xml:lang="en"><trans-title>Increasing the stability of the operation of vortex oscillations of contact- conductometric vortex flowmeters for wastewater from pulp and paper production</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-8756-9437</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лурье</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lur'e</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Семенович Лурье</p><p>Красноярск</p><p> </p></bio><bio xml:lang="en"><p>Mikhail S. Lur'e</p><p>Krasnoyarsk</p></bio><email xlink:type="simple">m-o-lur@yandex.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/0009-0007-1474-5934</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лурье</surname><given-names>О. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Lur'e</surname><given-names>O. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Михайловна Лурье</p><p>Красноярск</p></bio><bio xml:lang="en"><p>Olga M. Lur'e</p><p>Krasnoyarsk</p></bio><email xlink:type="simple">m_o_l@rambler.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/0009-0004-3502-4085</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фролов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Frolov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Сергеевич Фролов</p><p>Красноярск</p></bio><bio xml:lang="en"><p>Alexander S. Frolov</p><p>Krasnoyarsk</p></bio><email xlink:type="simple">sibgtu-frolov@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный университет науки и технологий им. академика М. Ф. Решетнёва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Reshetnev Siberian State University of Science and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>21</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>40</fpage><lpage>45</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/1874">https://www.izmt.ru/jour/article/view/1874</self-uri><abstract><p>Рассмотрены вопросы повышения устойчивости работы преобразователей вихревых колебаний погружных контактно-кондуктометрических вихревых расходомеров сточных вод целлюлозно-бумажного производства. В силу конструкции преобразователи такого типа подвержены периодическим срывам колебаний чувствительного элемента при некотором критическом расходе. Устойчивость работы указанных преобразователей проанализирована с использованием теории нелинейных импульсных систем. Установлено, что погрешность измерения расхода увеличивается вследствие пропадания выходного сигнала расходомера при критическом расходе. Показано, что критический расход обусловлен присоединённой массой жидкости, колеблющейся вместе с чувствительным элементом преобразователя вихревых колебаний расходомеров. Присоединённая масса жидкости определена через частотные характеристики чувствительных элементов преобразователя вихревых колебаний с помощью численного моделирования и экспериментальных исследований на специальном стенде. По результатам исследования получены амплитудно-частотные характеристики чувствительных элементов. Проведён сравнительный анализ модельных и экспериментальных характеристик и установлены дополнительные потери энергии при колебаниях чувствительного элемента. По итогам исследований сформулированы требования к проектированию преобразователей вихревых колебаний, касающиеся выбора механических параметров гибкого электрода, исключающие погрешности измерения и обеспечивающие устойчивую работу прибора во всём диапазоне измерений расхода. Результаты актуальны для организаций, занимающихся разработкой и внедрением расходоизмерительного оборудования и мониторингом сточных вод.</p></abstract><trans-abstract xml:lang="en"><p>The problem of studying the stable operation of contact-conductometric transducers of vortex oscillations of submersible vortex flowmeters for measuring wastewater in pulp and paper production is considered. By design, this type of transducer is subject to periodic disruption of the sensitive element oscillations at a certain critical flow rate. The stability analysis was carried out on the basis of the theory of nonlinear impulse systems, which showed the presence of a critical flow rate, at which the loss of the output signal of the flow meter is observed, which subsequently increases the measurement error. The value of the critical flow rate is associated with the presence of an attached mass of liquid oscillating together with the sensitive element of the flow transducer of vortex flow meters. A technique for conducting a study of finding the added mass of liquid through the frequency characteristics of the sensitive elements of flow transducers using numerical simulation, as well as experimental studies on a special stand, is described. Based on the results of the study, the amplitude-frequency characteristics of the sensitive elements were obtained. Carrying out a comparative analysis of the obtained characteristics with the help of numerical and experimental studies made it possible to judge additional energy losses during the oscillation of the sensitive element. </p><p>The results obtained made it possible to formulate requirements for the design of flow transducers that exclude these errors and ensure stable operation of the device over the entire measurement range. The results are relevant for organizations involved in the development and implementation of flow measuring equipment and monitoring wastewater.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вихревой расходомер</kwd><kwd>сточные воды</kwd><kwd>погрешность</kwd><kwd>моделирование</kwd><kwd>устойчивость работы</kwd><kwd>присоединённая масса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>vortex flowmeter</kwd><kwd>wastewater</kwd><kwd>error</kwd><kwd>modeling</kwd><kwd>stability of work</kwd><kwd>annexed mass</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">Личутина Т. Ф., Мискевич И. В., Бровко О. С., Гусакова М. А. Оптимизация нормирования сброса стоков предприятий ЦБП в водотоки. Екатеринбург: РАН УО ИЭПС, 2005. 212 с. https://elibrary.ru/qnebov</mixed-citation><mixed-citation xml:lang="en">Lichutina T. F., Miskevich I. V., Brovko O. S., Gusakova M. A. 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