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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">ntv</journal-id><journal-title-group><journal-title xml:lang="ru">Научно-технический вестник информационных технологий, механики и оптики</journal-title><trans-title-group xml:lang="en"><trans-title>Scientific and Technical Journal of Information Technologies, Mechanics and Optics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-1494</issn><issn pub-type="epub">2500-0373</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2226-1494-2024-24-6-913-922</article-id><article-id custom-type="elpub" pub-id-type="custom">ntv-397</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>ОПТИЧЕСКИЕ СИСТЕМЫ И ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OPTICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Исследование метода измерения веса подвижных объектов на основе квазираспределенных волоконных решеток Брэгга с температурной компенсацией</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the method of moving object weight measurement based on quasi-distributed fiber Bragg gratings with temperature compensation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1624-2659</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Моор</surname><given-names>Я. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Moor</surname><given-names>I. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Моор Янина Дмитриевна - инженер, </p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Ianina D. Moor - Engineer,</p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">moorID@itmo.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/0000-0002-1941-6861</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козлова Александра Игоревна - инженер,</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Alexandra I. Kozlova - Engineer,</p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">sashakozlova80@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-2402-0413</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коробкова</surname><given-names>У. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Korobkova</surname><given-names>U. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коробкова Ульяна Руслановна - инженер,</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Uliana R. Korobkova - Engineer,</p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">urkorobkova@itmo.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/0000-0002-3120-8109</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Варжель</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Varzhel</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Варжель Сергей Владимирович - кандидат физико-математических наук, доцент, заведующий лабораторией,</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Sergey V. Varzhel - PhD (Physics &amp; Mathematics), Associate Professor, Head of Laboratory, </p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">svvarzhel@itmo.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/0000-0001-8882-7253</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куликов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulikov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Куликов Андрей Владимирович - кандидат технических наук, доцент, директор института, </p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Andrei V. Kulikov - PhD, Associate Professor, Director of Institute,</p><p>Saint Petersburg, 197101</p></bio><email xlink:type="simple">avkulikov@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO 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>28</day><month>12</month><year>2024</year></pub-date><volume>24</volume><issue>6</issue><fpage>913</fpage><lpage>922</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Моор Я.Д., Козлова А.И., Коробкова У.Р., Варжель С.В., Куликов А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Моор Я.Д., Козлова А.И., Коробкова У.Р., Варжель С.В., Куликов А.В.</copyright-holder><copyright-holder xml:lang="en">Moor I.D., Kozlova A.I., Korobkova U.R., Varzhel S.V., Kulikov A.V.</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://ntv.elpub.ru/jour/article/view/397">https://ntv.elpub.ru/jour/article/view/397</self-uri><abstract><sec><title>Введение</title><p>Введение. В отрасли грузоперевозок активно применяются датчики веса. В системах взвешивания при движении автотранспортных средств в качестве чувствительных элементов используются керамические, полимерные, кварцевые пьезоэлектрические сенсоры, нагрузочные или гидравлические ячейки, тензометрические датчики. Однако большинство электрических датчиков подвержены влиянию электромагнитных помех. В настоящее время наиболее активно развиваются и внедряются в эксплуатацию волоконно-оптические датчики, благодаря их относительно низкой стоимости, малым массогабаритным параметрам, высокой точности измерений и полной пассивности к электромагнитным возмущениям. Волоконно-оптические датчики, как правило, основаны на применении волоконных решеток Брэгга с учетом удобства их мультиплексирования. Механические деформации чувствительного элемента датчика приводят к сдвигу длины волны брэгговского резонанса решетки. При этом проблема применения волоконных решеток связана с их чувствительностью к температуре. Для достижения высокой точности измерений величины деформации, соответственно, и весовых характеристик объекта, требуется устранение или компенсация влияния температуры датчика на его показания. Большинство современных исследований дают описание датчиков, работающих в лабораторных условиях, или используют дополнительный сенсор для измерения температуры.</p></sec><sec><title>Метод</title><p>Метод. В работе предложен метод решения проблемы перекрестной чувствительности волоконной дифракционной структуры к температуре и деформации. Метод основан на применении в чувствительном элементе датчика пары близкорасположенных решеток. Одна из решеток имеет постоянный период по длине, а другая — переменный. Конструкция чувствительного элемента обеспечивает передачу механической нагрузки только на волоконную решетку с постоянным периодом, а изменение температуры одинаково влияет на обе дифракционные структуры.</p></sec><sec><title>Основные результаты</title><p>Основные результаты. Предложено конструктивное решение чувствительного элемента, которое позволило осуществить компенсацию температурного воздействия без использования дополнительных элементов. Приведена математическая модель температурного воздействия, позволяющая оценить зависимость температурного градиента от времени при различных толщинах чувствительного элемента. Моделирование показало, что для образца толщиной 0,95 см температурный градиент внутри подложки незначителен. При резком изменении температуры выравнивание температурного поля в пределах подложки на уровне 90 % происходит не более, чем за 2,5 с. Механическая нагрузка на чувствительный элемент может проходить относительно волоконной решетки под различными углами, в связи с чем детально исследована величина сдвига центральной длины волны брэгговского резонанса в зависимости от точки приложения и направления нагрузки.</p></sec><sec><title>Обсуждение</title><p>Обсуждение. Предлагаемая технология может представлять интерес при разработке и эксплуатации автоматических систем весогабаритного контроля с температурной компенсацией без применения дополнительных датчиков. Предложенная система проста в эксплуатации и обладает невысокой стоимостью.</p></sec></abstract><trans-abstract xml:lang="en"><p>Weight sensors are widely used in the freight transportation industry. In the systems for weighing vehicles while moving, ceramic, polymer, quartz piezoelectric sensors, load or hydraulic cells, strain gauges are used as sensitive elements. However, most electric sensors are susceptible to electromagnetic interference. Currently, fiber-optic sensors are most actively developed and put into operation due to their relatively low cost, small weight and size parameters, high measurement accuracy and complete passivity to electromagnetic disturbances. Fiber-optic sensors are most often implemented using fiber Bragg gratings, taking into account the convenience of their multiplexing. Mechanical deformations lead to a shift in the wavelength of the Bragg resonance of the grating. At the same time, the problem of using fiber gratings is associated with their sensitivity to temperature. To achieve high accuracy in measuring the deformation value, and accordingly, the weight characteristics of the object, it is necessary to eliminate or compensate for the effect of the sensor temperature on its readings. Most modern studies describe sensors that either operate in laboratory conditions or involve the use of an additional sensor that complicates the circuit for measuring temperature. The paper proposes a method for solving the problem of cross-sensitivity of a fiber diffraction structure to temperature and deformation. The method is based on the use of a pair of closely spaced gratings in the sensitive element of the sensor. One of the gratings has a constant period along the length, and the other has a variable one. The design of the sensitive element ensures the transfer of mechanical load only to the fiber grating with a constant period, and the temperature change equally affects both diffraction structures. A design solution for the sensitive element is proposed that allows for temperature effects compensation without using additional elements. A mathematical model of temperature effects is presented, allowing estimating the dependence of the temperature gradient on time for different thicknesses of the sensitive element. Modeling has showed that for a sample 0.95 cm thick, the temperature gradient inside the substrate is insignificant. With a sharp change in temperature, the equalization of the temperature field within the substrate at a level of 90 % occurs in no more than 2.5 s. The mechanical load on the sensitive element can pass relative to the fiber grating at different angles in connection with which the value of the shift of the central wavelength of the Bragg resonance was studied in detail depending on the point of application and direction of the load. The proposed technology may be of interest in the development and operation of automatic weight and size control systems with temperature compensation without the use of additional sensors. The proposed system is easy to operate and it has a low cost.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>температурная компенсация</kwd><kwd>метод измерения веса</kwd><kwd>волоконные брэгговские решетки</kwd><kwd>датчик веса</kwd><kwd>моделирование чувствительного элемента</kwd><kwd>повреждения дорог</kwd><kwd>автомобильный весовой контроль</kwd></kwd-group><kwd-group xml:lang="en"><kwd>temperature compensation</kwd><kwd>weight measurement method</kwd><kwd>fiber Bragg gratings</kwd><kwd>weight sensor</kwd><kwd>sensing element modeling</kwd><kwd>road damage</kwd><kwd>auto weight control</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования Российской Федерации (проект № FSER-2024-0006).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Citir N., Gopisetti P., Ceylan H., Kim S. 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