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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">10.21122/2220-9506-2020-11-1-22-32</article-id><article-id custom-type="elpub" pub-id-type="custom">pimi-636</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>Средства измерений</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Measuring instruments</subject></subj-group></article-categories><title-group><article-title>Математическая модель сенсора с открытой областью пространства</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical Model of an Open Area of Space Sensor</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>Джежора</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Jezhora</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Адрес для переписки:  А.А. Джежора – Витебский государственный технологический университет, Московский пр-т, 72, г. Витебск 210038, Беларусь.     e-mail: jezhora@mail.ru</p></bio><bio xml:lang="en"><p>Address for correspondence: A.A. Jezhora – Vitebsk State Technological University, Moskovsky Ave., 72, Vitebsk 210038, Belarus.    e-mail: jezhora@mail.ru</p></bio><email xlink:type="simple">jezhora@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>Завацкий</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavatski</surname><given-names>Y. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Московский пр-т, 72, г. Витебск 210038</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коваленко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Московский пр-т, 72, г. Витебск 210038</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Науменко</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Naumenko</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Московский пр-т, 72, г. Витебск 210038</p></bio><bio xml:lang="en"/><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Витебский государственный технологический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Vitebsk State Technological University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>17</day><month>03</month><year>2020</year></pub-date><volume>11</volume><issue>1</issue><fpage>22</fpage><lpage>32</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Джежора А.А., Завацкий Ю.А., Коваленко А.В., Науменко А.М., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Джежора А.А., Завацкий Ю.А., Коваленко А.В., Науменко А.М.</copyright-holder><copyright-holder xml:lang="en">Jezhora A.A., Zavatski Y.A., Kovalenko A.V., Naumenko A.M.</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/636">https://pimi.bntu.by/jour/article/view/636</self-uri><abstract><p>Для эффективного применения диэлектрометрических сенсоров большое значение имеет оптимизация конструктивных параметров сенсоров, таких как глубина проникновения электромагнитного поля, величина сигнала сенсора. Цель работы заключалась в построении математической модели сенсора с открытой областью пространства и расчёте его параметров.</p><p>Представлены результаты расчёта основных параметров сенсора открытого пространства. Для численного 2D моделирования использованы методы интегральных уравнений и зеркальных отображений. Поверхность каждого электрода рассматривалась в виде двух параллельных ламелей. Такой подход упростил процедуру численного решения двухмерной задачи. Он позволяет выполнять расчёт электрических полей плоских слоистых сред с меньшими временными затратами, с использованием менее мощных компьютеров. Программа численных расчётов реализована в MAPLE.</p><p>Проверка адекватности программы осуществлялась для сенсора, выполненного на одностороннем фольгированном тефлоне (ε1 = 2,3) толщиной b = 1,0 мм. Для сенсора выполнен расчёт электрического поля в трёхслойной среде. Расчётная картина поля показала неоднородность распределения силовых линий. Установлено, что глубина зоны контроля не зависит от металлизации поверхности сенсоров. Глубина зоны контроля для сенсора открытого типа лежит в том же диапазоне, что и глубина зоны контроля для плоских накладных измерительных конденсаторов – аналог fringing electric field (FEF) sensors (сенсоров окаймляющего электрического поля).</p><p>Созданная модель позволяет проводить обоснованный выбор конструкции и параметров электроёмкостного сенсора открытого типа, определять метрологические характеристики измерительного устройства, решать вопрос технической осуществимости поставленной задачи.</p></abstract><trans-abstract xml:lang="en"><p>For the effective use of dielectric sensors, optimization of the design parameters of the sensors, such as the depth of penetration of the electromagnetic fi and the magnitude of the sensor signal, is of great importance. The purpose of the work was to build a mathematical model of a sensor with an open area of space and calculate its parameters.Results of main parameters calculations of the open space sensor are presented. Methods of integral equations and mirror images are used for numerical 2D modeling. The surface of each electrode was considered as two parallel lamellae. This approach simplifi the procedure for numerically solving a two-dimensional problem. It allows you to calculate the electric fi of fl layered media with less time, using less powerful computers. The numerical calculation program is implemented in MAPLE.The program adequacy was checked for a sensor made on one-sided foil Tefl (ε1 = 2,3) with a thickness of b = 1.0 mm. The electric fi was calculated for the sensor in a three-layer medium. The calculated picture of the fi showed that the distribution of force lines is not uniform. It was found that the depth of the control zone does not depend on the metallization of the sensor surface. The depth of the control zone for an open-type sensor is in the same range as the depth of the control zone for fl overhead measuring capacitorsan analog of fringing electric fi d (FEF) sensors.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сенсор</kwd><kwd>модель</kwd><kwd>диэлектрическая жидкость</kwd><kwd>точность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sensor</kwd><kwd>model</kwd><kwd>dielectric fluid</kwd><kwd>accuracy</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">Hu, X. Planar capacitive sensors–designs and applications / X. Hu, W. Yang // Sensor Review. – 2010. – Vol. 30, no. 1. – P. 24–39. DOI: 10.1108/02602281011010772</mixed-citation><mixed-citation xml:lang="en">Hu X., Yang W. Planar capacitive sensors–designs and applications. 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