Browsing Приборы и методы измерений by Title

Now showing items 8-27 of 497

    • 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

    • Automatic Measurement in Metallography 

      Anisovich, A.; Markevich, M.; Vanchinkhuu, Jigmeddorj (БНТУ, 2023)
      Quantitative analysis of the structure of metals and alloys is an important part of modern metal science. To obtain quantitative data and build dependencies, metallographic image processing programs are used, oriented both for scientific research and for use in industry. Programs capable of automatically performing metallographic analysis are of great interest to consumers. When ...
      2023-10-18

    • Autonomous Streaming Space Objects Detection Based on a Remote Optical System 

      Baranova, V. S.; Saetchnikov, V. A.; Spiridonov, A. A. (БНТУ, 2021)
      Traditional image processing techniques provide sustainable efficiency in the astrometry of deep space objects and in applied problems of determining the parameters of artificial satellite orbits. But the speed of the computing architecture and the functions of small optical systems are rapidly developing thus contribute to the use of a dynamic video stream for detecting and ...
      2021-12-22

    • Backscattering of Ultrasonic Waves as the Basis of the Method of Control of Structure and Physicо-Mechanical Properties of Cast Irons 

      Baev, A. R.; Levkovich, N. V.; Babuk, E. P.; Asadchaya, M. V. (БНТУ, 2023)
      Increasing the reliability of control of cast iron structure and its physical and mechanical characteristics is an important scientific and technical task of the machine-building industry. The paper studies the possibilities of controlling the structure of cast irons using structural noise created by ultrasonic scattering on graphite inclusions of different shapes. The subject ...
      2023-10-17

    • Broadband method for group velocity dispersion measurements in the mid-infrared 

      Klimentov, D. S.; Tolstik, N. A.; Dvoyrin, V. V.; Sorokina, I. T. (БНТУ, 2011)
      A setup for broadband measurements of dispersion parameter in optical fibers based on the Mach–Zehnder interferometer is developed. Tm-doped fiber pumped at 1.61 μm was used as a source of broadband emission, that allowed to achieve the measurement spectral range of 1700 to 2000 nm. The method is applicable for comparatively short pieces of optical fiber with lengths of less than ...
      2012-03-28

    • Calculation of Correction Factors for Vickers Hardness Measurements on a Non-Planar Surface 

      Sandomirski, S. G.; Val’ko, A. L.; Rudenko, S. P. (БНТУ, 2022)
      The exact determination of Vickers HV hardness is important for determining of the product material mechanical properties. An important aspect of measuring HV is to obtain its values on a non-planar surface. Regulatory documents contain table values of correction factors K which depend on the surface shape (convex or concave, spherical or cylindrical), its curvature (diameter D) ...
      2022-11-11

    • Calculation of the Effective Energy Release Centerʼs Position of Inorganic Scintillation Detectors for Calibration at Small “Source–Detector” Distances 

      Lukashevich, R.; Fokov, G. (БНТУ, 2021)
      Inorganic scintillation detectors are widely used to measure of dose rate in the environment due to their high sensitivity to photon radiation. A distinctive feature when using such detectors is the need to take into account of the position of the effective energy release center. This peculiarity is actual when using measuring instruments with inorganic scintillation detectors ...
      2021-10-15

    • Calculation of the Effective Energy Release Centerʼs Position of Inorganic Scintillation Detectors for Calibration at Small “Source–Detector” Distances 

      Lukashevich, R.; Fokov, G. (БНТУ, 2021)
      Inorganic scintillation detectors are widely used to measure of dose rate in the environment due to their high sensitivity to photon radiation. A distinctive feature when using such detectors is the need to take into account of the position of the effective energy release center. This peculiarity is actual when using measuring instruments with inorganic scintillation detectors ...
      2021-10-18