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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">10.21122/2220-9506-2024-15-1-40-49</article-id><article-id custom-type="elpub" pub-id-type="custom">pimi-857</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>Оценка точности метода измерения температуры в процессе микродугового нагрева на основе показателей воспроизводимости и неопределённости</article-title><trans-title-group xml:lang="en"><trans-title>Temperature Measuring Method Accuracy Evaluation in the Microarc Heating Process Based on Reproducibility and Uncertainty Indicators</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>Степанов</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanov</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Адрес для переписки:Степанов М.С.Донской государственный технический университет, пл. Гагарина, 1, г. Ростов-на-Дону 344000, Россияe-mail: stepanovms@yandex.ru</p></bio><bio xml:lang="en"><p>Address for correspondence:Stepanov M.S.Don State Technical University,Gagarin Square, 1, Rostov-on-Don 344000, Russia e-mail: stepanovms@yandex.ru</p></bio><email xlink:type="simple">stepanovms@yandex.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>Кошлякова</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Koshlyakova</surname><given-names>I. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>пл. Гагарина, 1, г. Ростов-на-Дону 344000</p></bio><bio xml:lang="en"><p>Gagarin Square, 1, Rostov-on-Don 344000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Донской государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>12</day><month>04</month><year>2024</year></pub-date><volume>15</volume><issue>1</issue><fpage>40</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Степанов М.С., Кошлякова И.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Степанов М.С., Кошлякова И.Г.</copyright-holder><copyright-holder xml:lang="en">Stepanov M.S., Koshlyakova I.G.</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/857">https://pimi.bntu.by/jour/article/view/857</self-uri><abstract><p>Для поверхностного легирования стальных изделий в условиях микродугового нагрева необходим контроль их температуры с помощью термоэлектрических датчиков. В ранее проведённых исследованиях обоснована возможность применения термопар типа S, установлены основные факторы, влияющие на результаты измерений, определена функциональная зависимость показателя воспроизводимости от измеряемой температуры. Однако при этом не учитывались дополнительные факторы, которые могут оказывать влияние на кинетику процесса нагрева и результаты измерений температуры. Цель работы – обобщённая оценка неопределённости результатов измерений температуры стали при микродуговом нагреве с учётом наиболее полного комплекса влияющих факторов. Определяли влияние факторов: средний размер частиц угольного порошка (X1), диаметр образцов (X2); содержание в стали хрома (X3) на погрешность Y измерения температуры. Получена зависимость: Y = –4,032X1 – 0,095X2 + 0,0058X3 + 3,414. Таким образом, в изученном диапазоне значений увеличение размеров частиц порошка и диаметра образцов приводит к снижению погрешности измерений, а повышение содержания хрома – к её возрастанию. Поэтому погрешность измерений температуры при микродуговом нагреве может уменьшаться при снижении скорости нагрева образцов, а также повышении интенсивности теплопередачи от их поверхности вглубь материала за счет увеличения размеров, и, соответственно, массы обрабатываемых изделий. Выполнена оценка законов распределения значений исследованных факторов. Для X1 и X2 принят нормальный закон распределения, для X3 – равномерный. С учётом коэффициентов влияния каждого фактора выполнена оценка вносимой ими суммарной неопределённости и найдена общая оценка неопределённости: U = 1,1 °С. Детализированная количественная оценка точности метода измерения температуры при микродуговом нагреве позволяет учесть все значимые влияющие факторы и учесть их вклад в суммарную неопределённость измерений. При проведении процесса микродугового легирования полученное значение суммарной неопределённости измерений температуры от трёх исследованных факторов можно использовать в качестве априорной информации как неопредёленность типа В.</p></abstract><trans-abstract xml:lang="en"><p>It is necessary to control temperature using thermoelectric sensors for steel products surface alloying in conditions of microarc heating. The using S-type thermocouples possibility has been substantiated, main factors affecting the measurement results have been established, and the the reproducibility index functional dependence on the measured temperature has been determined, as a result of previous studies. However, additional influencing factors that may affect to the heating process kinetics and the temperature measurements results were not taken into account. The purpose of the work was a steel temperature measurement results uncertainty generalized assessment during microarc heating, taking into account most complete influencing factors set. Influencing factors comprise: average coal powder particle size (X1), sample diameter (X2); chromium content in steel (X3 ). The measurement error was denoted Y. The dependence is obtained: Y = –4.032X1 – 0.095X2 + 0.0058X3 + 3.414. Thus, in the studied range of values, an increase in the powder particle and the samples diameter size leads to a decrease in the measurement error, and the chromium content increase leads to its increase. Therefore, the temperature measurement error during microarc heating can be reduced with decrease the sample heating rate, as well as with increase the heat transfer intensity from its surface to the material depth due to an increase the size, and, accordingly, the processed products mass. Next, the studied factors values distribution laws were evaluated. For X1 and X2, the normal distribution law is adopted, for X3 – uniform. Taking into account each factor's influence coefficients, and the total uncertainty estimate introduced assessment by them, a generalized uncertainty estimate was found: U = 1.1 °C. The microarc heating temperature measurement method quantitative assessment detailed of the accuracy makes it possible to take into account all significant influencing factors and their total measurement uncertainty contribution. The obtained temperature measurement's total uncertainty value from the three studied factors can be used as a priori information as a type B uncertainty during the microarc saturation process.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>измерение температуры</kwd><kwd>оценка неопределённости результатов измерений</kwd><kwd>микродуговой нагрев</kwd><kwd>поверхностное упрочнение стали</kwd></kwd-group><kwd-group xml:lang="en"><kwd>temperature measurement</kwd><kwd>measurement results uncertainty estimation</kwd><kwd>microarc heating</kwd><kwd>steel surface hardening</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">Voroshnin LG, Mendeleeva OL, Smetkin VA. Theory and technology of chemical-thermal treatment. – M.: Novoe znanie Publ. 2010:304 p.</mixed-citation><mixed-citation xml:lang="en">Voroshnin LG, Mendeleeva OL, Smetkin VA. 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