Browsing by Type: Приборы и методы измерений "Article"

Now showing items 1-20 of 506

    • A Morphological Approach to Development of a Process for Measurement Uncertainty Estimation 

      Serenkov, P. S.; Romanchak, V. M.; Hrybkouski, A. V. (БНТУ, 2024)
      The problem of increasing the reliability of uncertainty estimation of measurement results is considered. The purpose of this work was to justify the application of the process approach to the formation of the algorithm of uncertainty estimation on the basis of morphological analysis. It is theoretically substantiated that from the standpoint of the system approach to achieving ...
      2024-07-16

    • About Possibility of Remote Diagnostics of the Respiratory System by Auscultation 

      Zaitseva, E. G.; Chernetsky, M. V.; Shevel, N. A. (БНТУ, 2020)
      Development of technical base, software, accumulated information on the diagnosis of the respiratory system provided the prerequisites for creating remote diagnostics of the human respiratory system through auscultation. The known methods do not solve the problem of determining auscultation points at patent´s housing without a diagnostic specialist. The purpose of this study is ...
      2020-06-30

    • Afocal Mirror Systems with Small Axial Dimensions 

      Artioukhina, N. K.; Peroza, L. (БНТУ, 2020)
      The searching and designing new solutions for mirror systems, including afocal ones, has been studied for decades. In the design, it has always been difficult to combine optimization and cost. Nowadays, the problem remains relevant. The widespread use of mirror systems is due to some aspects: thermal stability, high resolution in a wide spectral range, and the absence of image ...
      2020-03-16

    • Algorithm and mathematical model for geometric positioning of segments on aspherical composite mirror 

      Conquet, B.; Zambrano, L. F.; Artyukhina, N. K.; Fiodоrtsev, R. V.; Silie, A. R. (БНТУ, 2018)
      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 ...
      2018-09-18

    • 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

    • An Approach to Monitoring of Magnetic Parameters of Cores of a Chain of Spheres. Diagnostics of Different Chain’s Length and Core’s Radius 

      Sandulyak, A. A.; Sandulyak, D. A.; Gorpinenko, Y. O.; Sandulyak, A. V.; Ershova, V. A. (БНТУ, 2022)
      The basic structural elements of the magnetized granular medium (effectively used, in particular, in apparatus of thin magnetic separation) are granule chains (according to channel-by-channel model), in connection with which there is a need to detail the features of their magnetization. The purpose of the work is to develop and implement an approach to measuring magnetic (micro)flows ...
      2022-07-06

    • Analysis of Illumination Generated by LED Matrices Distribution 

      Bogdan, P. S.; Zaytseva, E. G.; Baranov, P. O.; Stepanenko, A. I. (БНТУ, 2022)
      Сreation of indoor lighting systems with the possibility of changing its parameters in space and time is a promising direction within the framework of the intellectual environment system. The aim of this work was to create a methodology for calculating the illumination created by LED matrices which does not require the use of specialized software products and is adapted to the ...
      2022-04-06

    • Analysis of Requirements and the Feasible Limit for Error Reduction in Two-Parameter Magnetic Determination of Steels’ Hardness 

      Sandomirski, S. G. (БНТУ, 2020)
      All measurements of mechanical properties of materials in the magnetic structural analysis are indirect and relationships between the measured parameters are correlated. An important physical parameter of steel is hardness. An increase in the correlation coefficient R and a reduction in the standard deviation (SD) are achieved when controlling the hardness of steels with two-parameter ...
      2020-09-18

    • Angular Photometry of Biological Tissue by Ellipsoidal Reflector Method 

      Bezuglyi, M. A.; Bezuglaya, N. V.; Ventsuryk, A. V.; Vonsevych, K. P. (БНТУ, 2019)
      Angular measurements in optics of biological tissues are used for different applied spectroscopic task for roughness surface control, define of refractive index and for research of optical properties. Purpose of the research is investigation of the reflectance of biologic tissues by the ellipsoidal reflector method under the variable angle of the incident radiation. The research ...
      2019-06-27

    • Anthropometric measurement based on structure from motion imaging technique 

      Paśko, S.; Sutkowski, M. (БНТУ, 2016)
      The aim of this work was to estimate limitations related of the actual resolution of images taken into the object reconstruction procedure (using Structure from Motion method) applied for anthropometric measurements. This is necessary to define technical parameters of equipment used for this application. A series of 42 images of the sample static object were taken with use of ...
      2016-12-12

    • Application of Electrical Impedance Measurements’ Method for Studies of Bubble Flows 

      Konovalov, I. A.; Chesnokov, A. A.; Barinov, A. A.; Dmitriev, S. M.; Khrobostov, A. E.; Makarov, M. A. (БНТУ, 2021)
      One of the important tasks in carrying out a computational justification of the reliability and safety of equipment that is part of the projected nuclear power plants today is the modeling of the bubbly regime of the coolant flow. In this regard the aim of this work is the use of extended methods of using matrix conductometric systems which are widespread in research practice for ...
      2021-10-14

    • Application of Satellite Image Processing Methods for Hydrocarbon Field Search 

      Fiodоrtsev, R. V.; Silie Cuenca, A. R.; Kozhevnikov, D. A.; Medina, V. M.; Delgado, R. (БНТУ, 2019)
      The object of the study is software methods of the Earth surface images processing obtained from the VRSS-2 satellite to determine the spectral composition of the vegetation cover to detect the presence of carotenoids during prolonged exposure to hydrocarbons. The photosynthetic pigments of higher plants (chlorophylls, carotenoids and phytobiliproteins) were analyzed. In the ...
      2020-01-08

    • Application of Solutions of Uncorrected Tasksʼ Theory for Managing of Production Processesʼ Robustness 

      Serenkov, P. S.; Romanchak, V. M.; Pesliak, I. E. (БНТУ, 2021)
      The industrial revolution of “Industry 4.0” is currently underway at an active pace. Individualization of provided products and services, transition to single production, the issues of acceptability of production processes at the stage of development and design have became urgent. The aim of this work was to develop a strategy for a fundamental solution to the task of guaranteed ...
      2021-12-22

    • Application of the Correlation Measurement Method for Reconstructing of the Velocity Profile with Spatial and Temporal Discretization in Studies of the Hydrodynamics of Turbulent Flows Based on the Matrix Conductometry Method 

      Dmitriev, S. M.; Khrobostov, A. E.; Solncev, D. N.; Barinov, A. A.; Chesnokov, A. A.; Konovalov, I. A.; Makarov, M. A.; Zyryanova, T. K. (БНТУ, 2021)
      The correlation method for measuring of the coolant flow rate is used in the operation of nuclear power plants and is widespread in research practice including study of turbulent flows hydrodynamics. However the question of its applicability and possibilities in studies using the matrix conductometry method remains open. Earlier the algorithm for determining of the correlation ...
      2021-12-22

    • Application of the Correlation Velocity Measurements for Hydrodynamic Investigations of Turbulent Coolant Flow in Nuclear Reactor Elements 

      Konovalov, I. A.; Khrobostov, A. E.; Legchanov, M. A.; Solncev, D. N.; Barinov, A. A.; Ryazanov, A. V.; Chesnokov, A. A.; Makarov, M. A. (БНТУ, 2020)
      The method of correlation measurement of the coolant flow rate, widely used for operational diagnostics of nuclear power plants, can be extensively used in research practice. The aim of this work was to apply a correlation method based on the conductometric measurement system with wire-mesh sensors for measuring a coolant flow rate. Insignificant concentration of a salt solution ...
      2020-09-18

    • Application of the Hough Transform to Dispersion Control of Overlapping Particles and Their Agglomerates 

      Гуляев, П. В. (БНТУ, 2023)
      The dispersion control of micro- and nanoparticles by their images is of great importance for ensuring the specified properties of the particles themselves and materials based on them. The aim of this article was to consider the possibilities of using the Hough transform for dispersion control of overlapping particles and their agglomerates. Analysis of the application of the ...
      2023-10-18

    • Application of the Thermal Diffusivity Standard for the Heat Transfer Parameter Control in Absorbing Materials 

      Ivakin, E. V. (БНТУ, 2023)
      Metrological support creation and use of heat transfer etalons are important stages in the development of modern materials science. This is especially concerned to the emergence of new materials in the world with previously unattainable thermophysical parameters. The purpose of this work was to develop and experimentally verify the idea of joint application of the transient ...
      2023-10-17

    • Application of Two-Channel Principle in Measuring Devices to Compensate for Disturbing Influences of Unknown Physical Nature 

      Nesterov, V. N.; Li, A. R. (БНТУ, 2020)
      The article notes the advantages of the method of constructing absolutely invariant measuring transducers for working in conditions with disturbing influences. However, this method is not universal. Its limitations are due to the impossibility of "symmetric" transmission of all disturbing influences into parallel measuring channels. A broader interpretation of the two-channel ...
      2020-09-18

    • Assessing of a Radiation Therapy Sessionʼs Duration at the Stage of Pre-Radiation Preparation 

      Piatkevich, M. N.; Titovich, E. V. (БНТУ, 2022)
      The treatment planning process includes a review of the radiation treatment plan which leads to a decision on the patientʼs treatment technique. The scope of this study was to create a mathematical model for calculating of a radiation therapy session duration during the pre-radiation planning stage. For dosimetric planning of radiation treatment the authors provided a formula and ...
      2022-04-06

    • Assessment of Temperature Effects in Interior Orientation Parameters Calibration of Optoelectronic Devices 

      Starasotnikau, M. A. (БНТУ, 2020)
      A digital micromirror device (DMD) micromirrors periodic spatial structure is a measuring scale in interior orientation parameters calibration of optoelectronic devices problems, when using a DMD as a testobject. It is important that DMD micromirrors periodic spatial structure remains constant. Change in a DMD micromirrors spatial structure may occur due to heating. In addition ...
      2020-06-30