ntvНаучно-технический вестник информационных технологий, механики и оптикиScientific and Technical Journal of Information Technologies, Mechanics and Optics2226-14942500-0373Университет ИТМО10.17586/2226-1494-2023-23-1-62-67ntv-329Research ArticleНОВЫЕ МАТЕРИАЛЫ И НАНОТЕХНОЛОГИИMATERIAL SCIENCE AND NANOTECHNOLOGIESУлучшение процесса автоматической стабилизации температуры в криовакуумной установкеImprovement of the automatic temperature stabilisation process in the cryovacuum unithttps://orcid.org/0000-0002-6691-8346ГоликовО. Ю.GolikovO. Yu.

Голиков Олег Юрьевич — младший научный сотрудник, докторант

Алматы, 050040

Oleg Yu. Golikov - Junior Researcher, Doctoral Student

Almaty, 050040

golikov@physics.kzhttps://orcid.org/0000-0002-2232-2911ЕрежепД.YerezhepD.

Ережеп Дархан Есейұлы - PhD, старший научный сотрудник

Алматы, 050040

Darkhan Yerezhep - PhD, Senior Researcher

Almaty, 050040

darhan_13@physics.kzhttps://orcid.org/0000-0001-7966-1140СоколовД. Ю.SokolovD. Yu.

Соколов Дмитрий Юрьевич - PhD, ассоциированный профессор

Алматы, 050040

Dmitriy Yu. Sokolov - PhD, Associate Professor

Almaty, 050040

yasnyisokol@gmail.comКазахский национальный университет им. аль-ФарабиКазахстанAl-Farabi Kazakh National UniversityKazakhstan2023181220242316267Copyright © Голиков О.Ю., Ережеп Д., Соколов Д.Ю., 20242024Голиков О.Ю., Ережеп Д., Соколов Д.Ю.Golikov O.Y., Yerezhep D., Sokolov D.Y.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ntv.elpub.ru/jour/article/view/329

Предмет исследования. Рассмотрены вопросы температурной стабилизации в установках, предназначенных для выполнения исследований свойств молекул при низких и сверхнизких температурах. Актуальность работы обусловлена необходимостью повышения скорости и точности получаемых данных, на которые в основном оказывает влияние температура исследования.Метод. С помощью инструментов программирования графической среды LabView создана управляющая программа для термоконтроллера LakeShore 325, реагирующая на приближение (рабочей) температуры к температуре (заданной) контрольной точки. Добавление элементов управления мощностью нагревательного элемента и временем включения PID-регулятора позволяет использовать их более гибко. Проведена верификация метода стабилизации для контрольных точек температуры 40, 100, 150 и 200 К.Основные результаты. Сравнение предложенной программы стабилизации температуры со стандартным решением в виде PID-регулятора показало его преимущество. Получено увеличение скорости достижения контрольных точек до двух порядков. Цифровизация термоконтроллера LakeShore 325 дала возможность выполнять дальнейшие работы по совершенствованию температурной стабилизации.Практическая значимость. Полученное увеличение соотношения точность–время при стабилизации позволило в разы улучшить качество проводимых измерений в области низких температур. Внедрение цифровой версии терморегулирующего прибора открывает возможности для дальнейшей автоматизации криовакуумных установок с помощью объединения программы термоконтроля с другими программами, регистрирующими, например, спектры при определенных значениях температуры.

This study concerns the issues of temperature stabilization in units used to research the properties of molecules at low and ultra-low temperatures. This research is relevant due to the need to increase the speed and accuracy of the data obtained. Using the LabView graphical programming environment tools, a control program was created for the LakeShore 325 thermocontroller which reacts when the current temperature is close to the control point temperature set by the researcher. By adding controls for the heating element power and PID controller boot times, it is possible to use them more flexibly. The method was verified for the temperature control points of 40 K, 100 K, 150 K and 200 K. A comparison of the proposed temperature stabilization program with the standard PID controller solution demonstrates the advantages of the former. The speed of reaching the control points was doubled. The digitalization of the LakeShore 325 thermocontroller makes it possible to work further on improving temperature stabilization. The resulting increase in the accuracy–time stabilization ratio makes it possible for those who conduct low-temperature experiments to improve the quality of their measurements dramatically. The introduction of a digital version of the temperature control device opens up possibilities for further automation of cryovacuum units by linking the thermal control program with other programs, for example, recording the spectra at specific temperature values.

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The authors declare that there are no conflicts of interest present.