2021: Recent submissions

Now showing items 21-38 of 38

    • Измерение вероятности стирания двоичного символа «0» в однофотонном асинхронном канале связи с приёмником на основе счётчика фотонов 

      Тимофеев, А. М. (БНТУ, 2021)
      При измерении маломощных оптических сигналов приёмные модули каналов однофотонной связи должны обеспечивать наименьшие потери передаваемой информации. В этой связи целесообразно использовать счётчики фотонов, которые являются высокочувствительными, однако характеризуются ошибками регистрации данных. Поэтому цель работы – исследовать влияние интенсивности регистрируемого оптического ...
      2021-07-08

    • Структурные решения, обеспечивающие увеличение динамической точности волнового твердотельного гироскопа 

      Малютин, Д. М. (БНТУ, 2021)
      Разработка волновых твердотельных гироскопов (ВТГ) является одним из перспективных направлений развития гироскопических датчиков угловой скорости. ВТГ с позиций технологии изготовления, системы настройки и управления, а также точностных характеристик имеет ряд преимуществ по сравнению с другими видами гироскопов. При разработке ВТГ стремятся уменьшить собственный уход гироскопа, ...
      2021-07-08

    • Improving of Surface Quality of Metal Reflector Mirrors Machined by Single Point Diamond Turning 

      Gusakov, G. A.; Sharonov, G. V. (БНТУ, 2021)
      Improving the technology of diamond turning of aluminum alloys is of great importance for expanding the application areas of metal-optical products based on aluminum in aerospace technology. The aim of this work was to study the effect of surface inhomogeneities of the initial aluminum alloy substrates on their optical and mechanical characteristics and to determine ways of ...
      2021-07-08

    • Nonlinear Pulse-Time Conversion in Radioisotope Devices: Analysis and Application Possibilities 

      Vodovozov, A. М. (БНТУ, 2021)
      The paper considers the operation of radioisotope measuring devices under dynamic conditions, when the Poisson pulse flux at the output of the radiation detector becomes unsteady and the nonlinearity of the calibration curve of the device, the stochasticity of the radiation signal and the inertia of the meter significantly complicate the task of estimating the measured physical ...
      2021-07-08

    • Influence of Geometry and Boundary Conditions in Area of Cohesion between Materials on the Reflection of an Ultrasonic Beam. Part 1. Theoretical Research 

      Bayev, A. R.; Mayorov, A. L.; Levkovich, N. V.; Shavlovskiy, D. V.; Asadchaya, M. V. (БНТУ, 2021)
      The improvement of efficiency, reliability and productivity of ultrasonic testing of objects with cohesion between materials connected by welding, soldering, gluing, etc. is 'an important problem of the modern production technologies. The purpose of the paper is to determine in 3D space the conditions for increasing the sensitivity and reliability of the flaw detection in the ...
      2021-07-07

    • Designing a Planar Fluxgate Using the PCB Technology 

      Kolomeitsev, A. A.; Zatonov, I. A.; Pischanskaya, M. I.; Baranov, P. F.; Ilyaschenko, D. P.; Verkhoturova, E. V. (БНТУ, 2021)
      The development of novel methods, scientific devices and means for measuring magnetic fields generated by ultra-low current is among promising directions in the development of medical equipment and instruments for geodetic surveys and space exploration. The present work is to develop a small sensor capable of detecting weak magnetic fields, which sources are biocurrents, radiation ...
      2021-07-07

    • Series of Photovoltaic Converters Based on Semiconductors with Intrinsic Photoconductivity 

      Vorobey, R. I.; Gusev, O. K.; Zharin, A. L.; Pantsialeyeu, K. U.; Svistun, A. I.; Tyavlovsky, A. K.; Tyavlovsky, K. L.; Shadurskaya, L. I. (БНТУ, 2021)
      One of the ways to solve multiple problems of optical diagnostics is to use photovoltaic converters based on semiconductors with intrinsic photoconductivity slightly doped with deep impurities which form several energy levels with different charge states within the semiconductor′s bandgap. Peculiarities of physical processes of recharging these levels make it possible to construct ...
      2021-07-07

    • Deep Learning Automated System for Thermal Defectometry of Multilayer Materials 

      Momot, A. S.; Galagan, R. M.; Gluhovskii, V. Yu. (БНТУ, 2021)
      Currently, along with growth in industrial production, the requirements for product quality testing are also increasing. In the tasks of defectoscopy and defectometry of multilayer materials, the use of thermal nondestructive testing method is promising. At the same time, interpretation of thermal testing data is complicated by a number of factors, which makes the use of traditional ...
      2021-07-07

    • High Power Diode-Pumped Erbium Laser Emitting at Near 1.5 μm 

      Gorbachenya, K. N.; Kisel, V. E.; Yasukevich, A. S.; Koporulina, E. V.; Volkova, E. A.; Maltsev, V. V.; Leonyuk, N. I.; Kuleshov, N. V. (БНТУ, 2021)
      Solid-state lasers emitting in the 1.5–1.6 μm spectral range are very promising for eye-safe laser range finding, ophthalmology, fiber-optic communication systems, and optical location. The aim of this work is the investigation of spectrosposcopic and laser properties of gain medium based on borate crystal for abovementioned lasers. Spectroscopic and laser properties of ...
      2021-07-06

    • Variables Selection in the Ultraviolet, Visible and Near Infrared Range for Calibration of a Mixture of Vegetable Oils by Absorbance Spectra 

      Khodasevich, М. А.; Borisevich, D. A. (БНТУ, 2021)
      The aim of the work was a multivariate calibration of the concentration of unrefined sunflower oil, considered as adulteration, in a mixture with flaxseed oil. The relevance of the study is due to the need to develop a simple and effective method for detecting the falsification of flaxseed oil which is superior in the content of essential polyunsaturated fatty acids to olive oil. ...
      2021-03-18

    • Development and Testing of a Methodology for Assessing of the Correlation Velocity Measurements’ Accuracy for the Hydrodynamic Investigations of the Turbulent Coolant Flow in Nuclear Reactor Elements 

      Konovalov, I. A.; Chesnokov, A. A.; Barinov, A. A.; Dmitriev, S. M.; Khrobostov, A. E.; Legchanov, M. A.; Borodin, S. S.; Makarov, M. A. (БНТУ, 2021)
      The correlation method of the coolant flow measuring is widely used in research practice including for studying of turbulent coolant flows in scale models of elements of nuclear power plants. The aim of this work was to develop a technique for assessing the effect of noise recorded by a measuring system on the flow rate readings obtained using the correlation method. A technique ...
      2021-03-18

    • Evaluation of Nonuniformity of Elastic Properties of Sheets Made from Closed-Сell Polyolefin Foams by Acoustic Method 

      Bogdan, O. P.; Zlobin, D. V.; Muraveva, O. V.; Molin, S. M.; Platunov, A. V. (БНТУ, 2021)
      The widespread use of polyolefin foams in strategically important industries is due to their high thermal, sound and vibration insulation properties. The aim of the work was to evaluate the non-uniformity of elastic properties over the area of sheets of polyolefin foams of various types using the acoustic non-contact shadow amplitude method of testing and confirmation by the ...
      2021-03-18

    • Algorithm for Control of Unmanned Aerial Vehicles in the Process of Visual Tracking of Objects with a Variable Movement’s Trajectory 

      Adnastarontsau, A. A.; Adnastarontsava, D. A.; Fiodоrtsev, R. V.; Katser, D. V.; Liavonau, A. Y.; Romanov, D. V.; Tcherniakovski, D. N.; Mikhailau, А. О. (БНТУ, 2021)
      The purpose of the research was to create an algorithm for determining and correcting the output parameters of the navigation module and the flight-navigation complex of unmanned aerial vehicles which provides control of an aviation gyro-stabilized platform with a multispectral optoelectronic system during flight and tracking various objects of observation. Principles of control ...
      2021-03-18

    • Development of Executive Equipment Design for Implementing the Process of Generating of Drops of Micro- and Nanoscale Range 

      Kuznetsov, M. A.; Ilyaschenko, D. P.; Kryukov, A. V.; Solodsky, S. A.; Lavrova, E. V.; Verkhoturova, E. V. (БНТУ, 2021)
      Modeling of velocities and temperatures processes distribution in the plasma-forming channel determining the design features and optimal parameters of the plasma torch nozzle is one of promising directions in development of plasma technologies. The aim of this work was to simulate the processes of velocities and temperature distribution in the plasma-forming channel and to determine ...
      2021-03-18

    • Optimization of the Emitting Coil of a Hardware-Software Complex for Study of Low-Frequency Electromagnetic Radiation’s Shielding Effectiveness 

      Kanafyev, O. D.; Trukhanov, A. V.; Zubar, T. I.; Chizhik, S. A.; Grabchikov, S. S. (БНТУ, 2021)
      Optimization of the radiation coil of the hardware-software complex for studying the effectiveness of shielding of low-frequency electromagnetic radiation will make it possible to assess the effectiveness of shielding coatings at a higher level. This fact will make it possible to develop coatings with improved characteristics. The purpose of this work was to determine the optimal ...
      2021-03-18

    • Фемтосекундная лазерная система с импульсной накачкой генератора и усилителя при использовании одного силового блока 

      Тихомиров, С. А. (БНТУ, 2021)
      Уже на протяжении нескольких десятилетий развитие методов генерации сверхкоротких импульсов является самостоятельной актуальной научно-технической задачей. Идёт постоянное совершенствование как способов получения импульсов, так и методов их использования. Целью данной работы являлось исследование возможности реализации согласованной работы двух принципиально разных типов лазеров ...
      2021-03-18

    • Design of Peltier Element Based on Semiconductors with Hopping Electron Transfer via Defects 

      Poklonski, N. A.; Vyrko, S. A.; Kovalev, A. I.; Anikeev, I. I.; Gorbachuk, N. I. (БНТУ, 2021)
      The study of thermoelectric properties of crystalline semiconductors with structural defects is of practical interest in the development of radiation-resistant Peltier elements. In this case, the spectrum of energy levels of hydrogen-like impurities and intrinsic point defects in the band gap (energy gap) of crystal plays an important role. The purpose of this work is to analyze ...
      2021-03-18

    • Experimental Installation for Determination of Attenuation Coefficient of Permanent Magnetic Field by Protective Materials 

      Fedosyuk, V. M. (БНТУ, 2021)
      The permanent magnetic field in addition to electromagnetic radiation has a significant effect on performance of devices. This is particularly true for highly sensitive precision measuring equipment, such as, for example, magnetometers or photomultiplier tubes. In this regard a new high-performance materials for protection against permanent fields and electromagnetic radiation ...
      2021-03-18