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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 custom-type="elpub" pub-id-type="custom">izmertech-1000</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>ТЕПЛОФИЗИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THERMOPHYSIC MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Анализ формы частотных зависимостей акустического cигнала при определении термодинамической температуры</article-title><trans-title-group xml:lang="en"><trans-title></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>Кытин</surname><given-names>В. Г.</given-names></name></name-alternatives><email xlink:type="simple">kyt35@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>Кытин</surname><given-names>Г. А.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>Московский государственный университет им. М. В. Ломоносова</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>07</day><month>02</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>43</fpage><lpage>46</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кытин В.Г., Кытин Г.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кытин В.Г., Кытин Г.А.</copyright-holder><copyright-holder xml:lang="en">Кытин В.Г., Кытин Г.А.</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://www.izmt.ru/jour/article/view/1000">https://www.izmt.ru/jour/article/view/1000</self-uri><abstract><p>Измерены частотные зависимости акустического сигнала, выполнены их теоретические расчёты. Проведен сравнительный анализ аппроксимации функцией Лоренца измеренных и теоретически рассчитанных зависимостей. Показано, что отличие формы максимума теоретически рассчитанной частотной зависимости от общепринятой аппроксимирующей функции приводит к сдвигу определяемой термодинамической температуры до 1 мК.</p></abstract><trans-abstract xml:lang="en"><p>Frequency dependences of acoustic signal were measured and theoretically calculated. The conventional approximation of frequency dependence of acoustic signal by Lorentz function was compared with theoretically calculated dependence. The shift of temperature determined from acoustic resonance up to 1 mK was predicted due to the deviation of the shape of acoustic resonance maximum from Lorentz function.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>акустический газовый термометр</kwd><kwd>акустический резонанс</kwd><kwd>термодинамическая температура</kwd><kwd>acoustic gas thermometer</kwd><kwd>acoustic resonance</kwd><kwd>thermodynamic temperature</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">Moldover M. R., Gavioso R. M., Mehl J. B., Pitre L., M. de Podesta, Zhang J. T. Acoustic gas thermometry // Metrologia. 2014. V. 51. P. R1-R19.</mixed-citation><mixed-citation xml:lang="en">Moldover M. R., Gavioso R. M., Mehl J. B., Pitre L., M. de Podesta, Zhang J. T. Acoustic gas thermometry // Metrologia. 2014. V. 51. P. 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