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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">pimi</journal-id><journal-title-group><journal-title xml:lang="ru">Приборы и методы измерений</journal-title><trans-title-group xml:lang="en"><trans-title>Devices and Methods of Measurements</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-9506</issn><issn pub-type="epub">2414-0473</issn><publisher><publisher-name>BNTU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/2220-9506-2018-9-4-314-324</article-id><article-id custom-type="elpub" pub-id-type="custom">pimi-405</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>Методы измерений, контроля, диагностики</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Methods of measurements, monitoring, diagnostics</subject></subj-group></article-categories><title-group><article-title>Методика обоснования представительности измерений при помощи пространственных кондуктометрических датчиков для исследования гидродинамики однофазных потоков теплоносителя</article-title><trans-title-group xml:lang="en"><trans-title>Method of Measurement Representativeness Assessment for Spatial Conductometric Sensors as Applied to Investigation of Hydrodynamics in Single Phase Flows</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>Баринов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Barinov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Адрес для переписки: Баринов А.А. – Нижегородский государственный технический университет им. Р.Е. Алексеева, ул. Минина, 24, г. Нижний Новгород 603950, Россия.     e-mail: lxbarinov92@mail.ru</p></bio><bio xml:lang="en"><p>Address for correspondence: Barinov A.A. – Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Minin str., 24, Nizhny Novgorod 603950, Russia.    E-mail: lxbarinov92@mail.ru</p></bio><email xlink:type="simple">lxbarinov92@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>Главный</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Glavny</surname><given-names>V. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дмитриев</surname><given-names>С. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>S. M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Легчанов</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Legchanov</surname><given-names>M. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рязанов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryazanov</surname><given-names>A. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хробостов</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Khrobostov</surname><given-names>A. E.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Нижегородский государственный технический университет им. Р.Е. Алексеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Nizhny Novgorod State Technical Univercity n.a. R.E. Alekseev</institution><country>Russian Federation</country></aff></aff-alternatives><aff xml:lang="ru" id="aff-2"><institution>Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>17</day><month>12</month><year>2018</year></pub-date><volume>9</volume><issue>4</issue><fpage>314</fpage><lpage>324</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Баринов А.А., Главный В.Г., Дмитриев С.М., Легчанов М.А., Рязанов А.В., Хробостов А.Е., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Баринов А.А., Главный В.Г., Дмитриев С.М., Легчанов М.А., Рязанов А.В., Хробостов А.Е.</copyright-holder><copyright-holder xml:lang="en">Barinov A.A., Glavny V.G., Dmitriev S.M., Legchanov M.A., Ryazanov A.V., Khrobostov A.E.</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://pimi.bntu.by/jour/article/view/405">https://pimi.bntu.by/jour/article/view/405</self-uri><abstract><p>Метод исследований гидродинамики при помощи пространственных кондуктометров активно используется в международной практике проведения эталонных верификационных экспериментов. Целью данной работы являлось создание методики обоснования представительности измерений при помощи пространственных кондуктометрических датчиков для измерений в однофазных потоках.</p><p>В статье рассмотрены аспекты работы пространственных кондуктометрических датчиков в полях неравномерной проводимости при исследовании гидродинамики однофазных потоков теплоносителя. Приводятся методы эквивалентных замещений выделенной ячейки и всей измерительной области датчика. Предложены методы оценки приемлемости упрощений для пересчета измеряемой проводимости в поле удельной электропроводности среды. Проведена декомпозиция источников неопределенности результатов измерений.</p><p>Выполнены эксперименты и численное моделирование сетчатого датчика для выяснения интенсивности межъячеечного влияния и погрешности тарировки. Результаты расчетов показали существенную зависимость показаний датчика от контрастности измеряемого поля и геометрического размера возмущений. Предложенная методика оценки неопределенности апробирована на конкретных датчиках и измерительной системе. Полученные результаты актуальны для постановки валидационных экспериментов с применением трассеров и метода кондуктометрии.</p></abstract><trans-abstract xml:lang="en"><p>The well-known method of spatial conductometry is widely used for hydrodynamical investigations in the frame of validation benchmarks. The aim of the work was to develop the method of representativeness substantiation for use of the conductometric sensors in single-phase applications.</p><p>The paper presents aspects of wire-mesh sensors (WMS) applications in non-uniform conductivity fields. The equivalent electrical circuits for the measurement cell and WMS are proposed and investigated. The methods of translation from measured conductance to conductivity of the water are discussed. Decomposition of the uncertainty sources and their propagation through measurements are investigated.</p><p>To obtain the «cross-talk» effect of the measurements the fi model of WMS fl domain was created. The results of calculations showed the dependence of the measurement results on the conductivity contrast in the cells as well as on the size of the contrast domain. The proposed method of the measurement uncertainty estimate was applied to the real WMS and it’s measurement system. The obtained results are topical for validation tests with the use of tracer methods and WMS.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>измерительная система</kwd><kwd>пространственная кондуктометрия</kwd><kwd>неопределенность результатов измерений</kwd><kwd>валидация</kwd><kwd>точность измерений</kwd></kwd-group><kwd-group xml:lang="en"><kwd>measurement system</kwd><kwd>spatial conductometry</kwd><kwd>experiment uncertainty</kwd><kwd>validation</kwd><kwd>measurement accuracy</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">Prasser, H.M. A new electrode-mesh tomograph for gas-liquid flows / H.M. Prasser, A. Bottger, J. Zschau // Flow Meas. Instrum. – 1998. – No. 9. – P. 111–119. DOI: 10.1016/S0955-5986(98)00015-6</mixed-citation><mixed-citation xml:lang="en">Prasser H.M., Bottger A., Zschau J. A new electrode-mesh tomograph for gas-liquid flows. 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