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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.2021-5-61-66</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1889</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>АКУСТИЧЕСКИЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ACOUSTIC MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Применение звукопроводящей полимерной плёнки для калибровки гидрофонов методами оптической интерферометрии</article-title><trans-title-group xml:lang="en"><trans-title>Application of a sound-conducting polymer foil for calibration of hydrophones by optical interferometry</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8183-3861</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Еняков</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Еnyakov</surname><given-names>A. М.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Михайлович Еняков</p><p>г. п. Менделеево, Московская обл.</p></bio><bio xml:lang="en"><p>Аlexander М. Еnyakov</p><p>Mendeleevo, Moscow region</p></bio><email xlink:type="simple">enyakov@vniiftri.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/0000-0002-7674-8010</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецов</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Игоревич Кузнецов</p><p>г. п. Менделеево, Московская обл.</p></bio><bio xml:lang="en"><p>Sergey I. Kuznetsov</p><p>Mendeleevo, Moscow region</p></bio><email xlink:type="simple">sergantex@vniiftri.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/0000-0003-2912-9484</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лукин</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukin</surname><given-names>G. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Георгий Сергеевич Лукин</p><p>г. п. Менделеево, Московская обл.</p></bio><bio xml:lang="en"><p>Georgiy S. Lukin</p><p>Mendeleevo, Moscow region</p></bio><email xlink:type="simple">lukin@vniiftri.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian metrological institute of technical physisl and radio engineering measurements</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>27</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>5</issue><fpage>61</fpage><lpage>66</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/1889">https://www.izmt.ru/jour/article/view/1889</self-uri><abstract><p>Рассмотрена калибровка гидрофонов методом оптической интерферометрии с использованием тонкой звукопрозрачной полимерной плёнки (мембраны). Показано, что основной проблемой при реализации этого метода калибровки является оценка соответствия колебаний металлизированной стороны плёнки колебательным смещениям частиц воды под действием звуковой волны, падающей на плёнку. На основе упрощённой теории прохождения акустических плоских волн через слои разнородных материалов разработаны методы измерения скорости звука в применяемой плёнке и алгоритм расчёта частотной зависимости коэффициента прохождения звуковой волны (по колебательной скорости) из воды через плёнку в воду или воздух. Обосновано введение в результаты калибровки гидрофона поправки, учитывающей коэффициент прохождения звуковой волны, и оценена неопределённость этой поправки.</p></abstract><trans-abstract xml:lang="en"><p>Modern calibration of hydrophones at megahertz frequencies is based on the method of optical interferometry, in which the vibrational velocity of an acoustic wave is measured using a thin sound-transparent polymer foil (membrane), metallized on one side to improve light reflection and installed in an ultrasonic field, followed by its replacement with a hydrophone to be calibrated. The main problem of implementing this calibration method is to assess the adequacy of tracking vibrations of the metallized side of the foil to vibrational displacements of water particles under the action of a sound wave incident on the opposite side of the foil. On the basis of the simplified theory of acoustic plane waves passing through layers of dissimilar materials, methods for measuring the speed of sound in the applied foil and an algorithm for calculating the frequency dependence of the sound wave transmission coefficient (in terms of vibrational velocity) from water through the foil to water or air, introduced as a correction to the results of hydrophone calibration, were developed. The uncertainty of the introduction of this correction is estimated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидрофон</kwd><kwd>коэффициент отражения</kwd><kwd>коэффициент прохождения</kwd><kwd>оптическая интерферометрия</kwd><kwd>полимерная металлизированная пленка</kwd><kwd>скорость звука</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrophone</kwd><kwd>reflection coefficient</kwd><kwd>transmission coefficient</kwd><kwd>optical interferometry</kwd><kwd>polymer metallized foil</kwd><kwd>speed of sound</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">Koukoulas T. et al., Proceedings of the 11th European Conference on Underwater Acoustics, January 2012, Edinburgh, UK. https://doi.org/10.13140/2.1.4367.2005</mixed-citation><mixed-citation xml:lang="en">Koukoulas T. et al., Proceedings of the 11th European Conference on Underwater Acoustics, January 2012, Edinburgh, UK. https://doi.org/10.13140/2.1.4367.2005</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Drain L. 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