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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.2021-5-18-25</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1882</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>Мостовой метод исследования спектров токовых флуктуаций в вольфрамовых нитях накала в диапазоне частот 1,5∙10–5–5∙10–1Гц</article-title><trans-title-group xml:lang="en"><trans-title>Bridge method for studying the spectra of currentf uctuations in tungsten flaments at the frequency range 1,5∙10–5–5∙10–1 Hz</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4445-1693</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захаров</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharov</surname><given-names>Y. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Александрович Захаров</p><p>Уфа</p></bio><bio xml:lang="en"><p>Yuriy A. Zakharov</p><p>Ufa</p></bio><email xlink:type="simple">uriyzakhr2012@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>Гоц</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gots</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Степанович Гоц</p><p>Уфа</p></bio><bio xml:lang="en"><p>Sergey S. Gots</p><p>Ufa</p></bio><email xlink:type="simple">gss.0215@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/0000-0002-2970-3362</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бахтизин</surname><given-names>Р. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Bakhtizin</surname><given-names>R. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рауф Загидович Бахтизин</p><p>Уфа</p></bio><bio xml:lang="en"><p>Rauf Z. Bakhtizin</p><p>Ufa</p></bio><email xlink:type="simple">raouf@bsunet.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Башкирский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bashkir State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>25</day><month>07</month><year>2023</year></pub-date><volume>0</volume><issue>5</issue><fpage>18</fpage><lpage>25</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/1882">https://www.izmt.ru/jour/article/view/1882</self-uri><abstract><p>Рассмотрена проблема отсутствия методов измерений низкочастотных флуктуационных процессов при высоких температурах. Предложен оригинальный мостовой метод измерения спектров низкочастотных флуктуаций тока в вольфрамовых нитях накала электрических ламп в контролируемом диапазоне температур 300–2700 К. В результате применения мостовой схемы измерений на несколько порядков уменьшено влияние на результаты измерений деградационных процессов в нитях накала и собственных шумов источников питания. Спектральный анализ низкочастотных флуктуаций тока осуществлён в диапазоне частот 1,5∙10–5–5∙10−1 Гц с помощью автоматизированной установки на базе персонального компьютера под управлением специально разработанного программного обеспечения.</p></abstract><trans-abstract xml:lang="en"><p>The problem of the absence of methods for measuring low-frequency fluctuation processes at high temperatures is considered. An original bridge method is proposed for measuring the spectra of low-frequency current fluctuations in tungsten filaments of electric lamps in a controlled temperature range of 300–2700 K. Application of the bridge measurement scheme allows us to reduce the influence of degradation processes in the filament and the power source's own noise on the measurement results by several orders of magnitude. Spectral analysis of low frequency current fluctuations is performed at the frequency range 1.5∙10–5–5∙10–1 Hz using an automated setup based on a personal computer under the control of specially developed software.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вольфрамовая проволока</kwd><kwd>нити накала</kwd><kwd>низкочастотные флуктуации</kwd><kwd>фликкер-шум</kwd><kwd>металлический проводник</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tungsten wire</kwd><kwd>filaments</kwd><kwd>low-frequency fluctuations</kwd><kwd>flicker noise</kwd><kwd>metal conductor</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">Ван дер Зил А. Шумы при измерениях. 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