ISSN 1991-2927
 

ACP № 3 (57) 2019

Keyword: "electroluminescence"

Denis Aleksandrovich Evsevichev, Ulyanovsk Civil Aviation Institute n. a. Marshal of the Air Force B.P. Bugaev, Candidate of Science in Engineering; graduated from the Radioengineering Faculty of Ulyanovsk State Technical University; Associate Professor of the Department of Air Traffic Control and Navigation of the Ulyanovsk Civil Aviation Institute n. a. Marshal of the Air Force B.P. Bugaev; an author of articles in the field of computer-aided design and optoelectronics. [e-mail: denistk_87@mail.ru]D. Evsevichev,

Mikhail Konstantinovich Samokhvalov, Ulyanovsk State Technical University, Doctor of Sciences in Physics and Mathematics, Professor; graduated from the Faculty of Physics of Saratov State University; Professor at the Department of Design and Technology of Electronic Devices of Ulyanovsk State Technical University; an author of articles in the field of optoelectronics.[e-mail: sam@ulstu.ru]M. Samokhvalov

Automated Selection of Designs for Thin-Film Electroluminescent Displays for Avionics 56_13.pdf

The development of methods and means for testing the applicability of thin-film electroluminescent indicator devices as displays for displaying navigation and technical information in aircraft is carried out. Thin-film electroluminescent displays are used in equipment and systems that require high image quality and reliability as well as a long service life of the devices. The result of the performed work is the ExpAT program, which allows to carry out a computational experiment to test of the applicability of the TFEL indicator devices in aeronautical engineering. The algorithm of the program includes iterative calculations of the indicator parameters at user-defined intervals, comparing them with the specified ones and recording the results. As a result of the computational experiment, variants of structures of thin-film emitting structures that meet the operating conditions of indicators in avionics are shown.

Aircraft engineering, electroluminescence, indicator, simulation experiment.

2019_ 2

Sections: Electrical engineering and electronics

Subjects: Electrical engineering and electronics.



Mikhail Konstantinovich Samokhvalov, Ulyanovsk State Technical University, Doctor of Sciences in Physics and Mathematics, Professor; graduated from the Faculty of Physics of Saratov State University; Professor at the Department of Design and Technology of Electronic Devices at Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronics. [e-mail: sam@ulstu.ru]M. Samokhvalov

Thermophysical Characteristics of Thin-film Electroluminescent Capacitors 54_13.pdf

Theoretical analysis and experimental studies of the processes of electric power dissipation and heating in thin-film electroluminescent capacitors in operating modes are carried out. The analysis of heat fluxes in a thin-film structure allowed to develop the thermal scheme of the electroluminescent capacitor. The calculation of numerical values of the thermal scheme elements taking into account features of properties of materials and designs of radiators is carried out. Studies have shown that the electrical power generated in the phosphor film in the form of heat is dissipated mainly through the glass substrate. It is established that the thermal resistance of a thin-film electroluminescent capacitor is 300-350 K/W and the thermal constant is 150-200 s. Heating of a thin-film structure does not exceed 10-15 K and cannot lead to degradation of the emitting indicator element.

Thin film electroluminescent capacitor, temperature resistance, phosphor, electroluminescence, indicator.

2018_ 4

Sections: Electrical engineering and electronics

Subjects: Electrical engineering and electronics.


Mikhail Konstantinovich Samokhvalov, Ulyanovsk State Technical University, Doctor of Sciences in Physics and Mathematics, Professor; graduated from the Faculty of Physics of Saratov State University named after N.G. Chernyshevsky; Professor of the Department of Electronic Instrumentation Design and Technology at Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronics. [e-mail: sam@ulstu.ru]M. Samokhvalov

Modeling the Brightness Dynamics of Thin-film Electroluminescent Capacitors 53_12.pdf

The processes of excitation of luminescence of thin-film electroluminescent capacitors within the model of direct shock excitation of activator centers in the luminophore are analyzed. Mathematical modeling of the dynamics of the brightness of radiation sources is carried out on the basis of the solution of the nonlinear ordinary differential equation describing the kinetics of changes in the density of excited centers of luminescence in the phosphor film. A program for numerical solution of nonlinear equation of luminance dynamics by Runge-Kutt method using a computer is developed. It is shown that the duration of transient processes determined by the brightness waves reaches 8-10 periods of applied alternating voltage. In order to obtain high brightness levels of electroluminescent indicators, it is necessary to excite the indicator elements with suites of alternating voltage pulses, the duration of which must be at least the time of reaching the steady-state operation.

Thin film electroluminescent capacitor, brightness, phosphor, electroluminescence, indicator.

2018_ 3

Sections: Electrical engineering and electronics

Subjects: Electrical engineering and electronics, Mathematical modeling, Information systems.


Oksana Vadimovna Maksimova, Ulyanovsk State Technical University, Associate Professor at the Department of Electronic Instrumentation Design and Technology of Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronic and microwave engineering. [e-mail: first32007@yandex.ru]O. Maksimova,

Sergei Vladimirovich Moiseenko, Peoples’ Friendship University, graduated from Peoples’ Friendship University of Russia; a post-graduate student at the Department of Cybernetics and Mechatronics of Peoples’ Friendship University of Russia; an author of articles in the field of liquid-crystal characteristics measurement . [e-mail: cormorant.xiii@gmail.com]S. Moiseenko,

Sergei Mikhailovich Maksimov, Ulyanovsk State Technical University, graduated from Ulyanovsk State Technical University with the specialty in Design and Technology of Electronic Instrumentation; a post-graduate student at the Department of Design and Technology of Electronic Instrumentation of Ulyanovsk State Technical University; an author of articles in the field of optoelectronics. [e-mail: maximovsm@yandex.ru]S. Maksimov

Measurement Process of Automation of Nanostructured Indicators Lightning Characteristics 39_14.pdf

It is now impossible to imagine an electronic device without the ergonomic display. For the development of modern and advanced display products need to constantly explore new materials and construction of indicators, as well as their parameters. The study of such structures is a complex task and requires significant research and development work. Therefore, the development of automated methods for measuring the parameters of the displays is an important task as it allows to accelerate the search for new materials and structures with the optimal settings. Employees of Ulyanovsk State Technical University together with scientists from the Russian Peoples' Friendship University were investigated methods of measuring devices basic parameters of liquid crystal structures and thin-film electroluminescent emitters. The joint work began forming ideas of conceptual approaches to the development of automated systems for measuring parameters of nanostructured lighting indicator elements.

Thin-film indicator, brightness, luminous efficiency, liquid crystals, automation, formalization, measurements, electroluminescence.

2015_ 1

Sections: Computer-aided engineering

Subjects: Computer-aided engineering.


Sergei Mikhailovich Maksimov, Ulyanovsk State Technical University, graduated from the Ulyanovsk State Technical University (UlSTU) with the specialty of Design and Technology of Electronic Instrumentation; a post-graduate student of the ‘Design and Technology of Electronic Instrumentation’ Department at UlSTU; an author of articles in the field of optoelectronics. [e-mail: maximovsm@yandex.ru]S. Maksimov,

Oksana Vadimovna Maksimova, Ulyanovsk State Technical University, Candidate of Engineering, Associate Professor at the Department of Electronic Instrumentation Design and Technology of Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronic and microwave engineering. [e-mail: first32007@yandex.ru]O. Maksimova,

Mikhail Konstantinovich Samokhvalov, Ulyanovsk State Technical University, Doctor of Physics and Mathematics, Professor; head of the Department of Electronic Instrumentation Design and Technology at Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronics. [e-mail: sam@ulstu.ru]M. Samokhvalov

Tasks of Modeling Automation of Brightness and Luminous Efficiency of Thin-film Electroluminscent Condensators 36_14.pdf

The modern means of information representation intended for professional use must meet certain requirements which depend on their field of application and maintenance conditions. The selection of constructive decisions is made according to the visualization system requirements. Certain of the computer-aided design (CAD) system simplifies the procedure of the design choice with necessary characteristics. The presented of investigations and calculations of the lighting characteristics of thin-film electroluminescent indicators. The main characteristics of indicator devices are explained by means impact excitation activator centers with the following light relaxation. These equations have been adapted for the development of CAD system of thin-film electroluminescent indicators. The presented of conspicuous lighting parameters dependence on the structural factors. Physical processes determined the thin-film light emitters work are sufficiently studied, that permits elaboration and production of different indicators and displays.

Thin film electroluminescence indicator, brightness, luminous efficiency, phosphor, activator centers, electroluminescence.

2014_ 2

Sections: Computer-aided engineering

Subjects: Computer-aided engineering.


Denis Aleksandrovich Evsevichev, Ulyanovsk State Technical University, Post-graduate Student at Ulyanovsk State Technical University; graduated from Ulyanovsk State Technical University with the speciality in Electronic Instrumentation Design and Technology; an author of articles in the field of optoelectronic and circuitry engineering; has certificate of registration of software in the same field of research. [e-mail: denistk_87@mail.ru]D. Evsevichev,

Oksana Vadimovna Maksimova, Ulyanovsk State Technical University, Candidate of Engineering, graduated from Ulyanovsk State Technical University with the speciality in Electronic Instrumentation Design and Technology; Associate Professor at the Department of Electronic Instrumentation Design and Technology of Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronic and microwave engineering. [e-mail: first32007@yandex.ru]O. Maksimova,

Mikhail Konstantinovich Samokhvalov, Ulyanovsk State Technical University, Doctor of Physics and Mathematics, Professor; graduated from Saratov State University with the speciality in Semiconductors and Dielectrics; a head of the Department of Electronic Instrumentation Design and Technology at Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronics. [e-mail: sam@ulstu.ru]M. Samokhvalov

A Solution of Computer-aided Design of the Thin-film Electroluminescent Indicators 33_10.pdf

A development and a solution of designing problems of the advanced thin-film electroluminescent (TFEL) display devices is an important undertaking in the engineering field. The development and optimization of the TFEL display design is a complex task and requires a considerable work of the engineer. The solution of this problem can be accomplished by the use of automation means. Therefore, the development of the TFEL indicator design algorithm and calculation program is essential.

Thin films, electroluminescence, display, design.

2013_ 3

Sections: Computer-aided design system

Subjects: Computer-aided engineering, Electrical engineering and electronics.


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