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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">10.21122/2220-9506-2018-9-3-234-242</article-id><article-id custom-type="elpub" pub-id-type="custom">pimi-388</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>Методы измерений, контроля, диагностики</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Methods of measurements, monitoring, diagnostics</subject></subj-group></article-categories><title-group><article-title>Алгоритм и математическая модель геометрического позиционирования асферического составного зеркала</article-title><trans-title-group xml:lang="en"><trans-title>Algorithm and mathematical model for geometric positioning of segments on aspherical composite mirror</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>Конкет</surname><given-names>Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Conquet</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Адрес для переписки: Конкет Б. – Национальный центр оптических технологий, пр-т Лос Процерес, сектор Ла Педрегоса, корпус 4, г. Мерида 5101, Венесуэла.    e-mail: conquetber@gmail.com</p></bio><bio xml:lang="en"><p>Address for correspondence: Conquet B. – National Center of Optical Technologies, Los Proceres Ave, sector La Pedregosa, housing 4, Merida 5101, Venezuela.     e-mail: conquetber@gmail.com</p></bio><email xlink:type="simple">conquetber@gmail.com</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>Самбрано</surname><given-names>Л. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Zambrano</surname><given-names>L. F.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Артюхина</surname><given-names>Н. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Artyukhina</surname><given-names>N. K.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фёдорцев</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Fiodоrtsev</surname><given-names>R. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Силие</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Silie</surname><given-names>A. R.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный центр оптических технологий</institution><country>Венесуэла</country></aff><aff xml:lang="en"><institution>National Center of Optical Technologies</institution><country>Venezuela, Bolivarian Republic of</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный центр оптических технологий; &#13;
Белорусский национальный технический университет</institution><country>Венесуэла</country></aff><aff xml:lang="en"><institution>National Center of Optical Technologies; &#13;
Belarusian National Technical University</institution><country>Venezuela, Bolivarian Republic of</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>17</day><month>09</month><year>2018</year></pub-date><volume>9</volume><issue>3</issue><fpage>234</fpage><lpage>242</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Конкет Б., Самбрано Л.Ф., Артюхина Н.К., Фёдорцев Р.В., Силие А.Р., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Конкет Б., Самбрано Л.Ф., Артюхина Н.К., Фёдорцев Р.В., Силие А.Р.</copyright-holder><copyright-holder xml:lang="en">Conquet B., Zambrano L.F., Artyukhina N.K., Fiodоrtsev R.V., Silie A.R.</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/388">https://pimi.bntu.by/jour/article/view/388</self-uri><abstract><p>В последние годы крупнейшие наземные и орбитальные телескопы, работающие в широком спектральном диапазоне длин волн, при формировании главного зеркала используют технологию сегментированных составных элементов. Такой подход позволяет: расширить спектральный рабочий диапазон от 0,2 до 11,0 мкм и увеличить диаметр входного зрачка приемной оптической системы, при сохранении оптимального значения показателя mS – масса на единицу площади. Цель исследований заключалась в разработке алгоритма для решения задачи геометрического позиционирования гексагональных сегментов зеркального телескопа, построения оптимальной схемы «обхода» элементов при юстировке на ближайший радиус к асферической поверхности, а также программной апробации выходных расчетных параметров с целью проверки адекватности полученных результатов.</p><p>Рассмотрены два варианта юстировки положения зеркальных сегментов при формировании асферической поверхности второго порядка, относительно базовой поверхности ближайшей сферы, включающие геометрическое и оптотехническое позиционирование.</p><p>Рассмотрены различные методики формирования массивов из регулярных шестиугольных сегментов с равными воздушными промежутками между ними. Предложен вариант построения массивов через концентрические кольца равного шага.</p><p>Представлена последовательная трехступенчатая методика распределения сегментов мозаики при выполнении расчетов по юстировке асферической поверхности: многолучевая линейная; многолучевая точечная; блочная трапецеидальная.</p><p>В ходе проведения математического моделирования разработан алгоритм для решения задачи геометрического позиционирования плоских гексагональных сегментов зеркального телескопа. На языке программирования Python составлены циклы программы для формирования массива данных необходимых для построения зеркальной отражающей поверхности заданной апертуры. В программном пакете Zemax выполнена проверка сходимости оптических лучей от плоских гексагональных элементов в центральную область асферической поверхности.</p></abstract><trans-abstract xml:lang="en"><p>In recent years, the largest terrestrial and orbital telescopes operating in a wide spectral range of wavelengths use the technology of segmented composite elements to form the main mirror. This approach allows: to expand the spectral operating range from 0.2 to 11.0 μm and to increase the diameter of the entrance pupil of the receiving optical system, while maintaining the optimal value of the exponent mS– mass per unit area.</p><p>Two variants of adjusting the position of mirror segments are considered when forming an aspherical surface of the second order, with respect to the base surface of the nearest sphere, including geometrical and opto-technical positioning.</p><p>The purpose of the research was to develop an algorithm for solving the problem of geometric positioning of hexagonal segments of a mirror telescope, constructing an optimal circuit for traversing elements when aligning to the nearest radius to an aspherical surface, and also to program the output calculation parameters to verify the adequacy of the results obtained.</p><p>Various methods for forming arrays from regular hexagonal segments with equal air gaps between them are considered. The variant of construction of arrays through concentric rings of an equal step is offered.</p><p>A sequential three-step method for distributing mosaic segments is presented when performing calculations for aligning the aspherical surface: multipath linear; multipath point; block trapezoidal.</p><p>In the course of mathematical modeling an algorithm was developed to solve the problem of geometric positioning of flat hexagonal segments of a mirror telescope. In the Python programming language, program loops are designed to form the data array necessary to construct a specular reflective surface of a given aperture. In the software package Zemax, the convergence of optical beams from flat hexagonal elements to the central region of the aspherical surface is verified.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>гексагональный</kwd><kwd>шестиугольный сегмент</kwd><kwd>геометрическое и оптотехническое позиционирование</kwd><kwd>составное зеркало</kwd><kwd>алгоритм</kwd><kwd>модель</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">Sabelhaus P.A., Decker J.E. An overview of the James Webb Space Telescope (JWST) project. Proceeding of SPIE, 2004, vol. 5487. doi: 10.1117/12.549895</mixed-citation><mixed-citation xml:lang="en">Sabelhaus P.A., Decker J.E. An overview of the James Webb Space Telescope (JWST) project. 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