2022
Recent Submissions
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Оценка состояния электрических машин на основе математического моделирования дефектообразования в обмотках
(БНТУ, 2022)Максимально качественная и своевременная диагностика состояния обмоток электрических машин различного типа, в том числе и обмоток асинхронных двигателей, область применения которых с каждым годом увеличивается, является актуальной проблемой. Среди существующих методов диагностики в настоящее время наиболее перспективными являются способы, основанные на методах анализа резонансных ...2022-12-29 -
Зарядочувствительный метод исследования деформационных процессов
(БНТУ, 2022)В качестве информационного параметра об изменении состояния материала под действием механических напряжений может быть использован поверхностный электростатический потенциал (заряд). Целью работы являлась отработка методик исследования деформационных процессов в металлических и полимерных материалах с использованием зарядочувствительного метода. Проведены экспериментальные ...2022-12-29 -
Concept of Vector Multicomponent Physical Quantities, Models and Measurement Method
(БНТУ, 2022)The paper presents a new view of vector physical quantities as multicomponent quantities. Each of the components of the mentioned multicomponent quantities can carry important and even unique information about the sources and causes of their occurrence. Looking at the vector quantity as the multicomponent quantity led to the need to form the corresponding conception. There are ...2022-12-29 -
Monte Carlo Simulation of Flash Memory Elements’ Electrophysical Parameters
(БНТУ, 2022)Operation of modern flash memory elements is based on electron transport processes in the channel of silicon MOSFETs with floating gate. The aim of this work was calculation of electron mobility and study of the influence of phonon and ionized impurity scattering mechanisms on the mobility, as well as calculation of parasitic tunneling current and channel current in the conductive ...2022-12-29 -
Формирование доменной структуры в проектировании открытых информационно-измерительных систем
(БНТУ, 2022)Возможности использования и значение открытых систем при проектировании и создании средств измерения постоянно возрастают. Применение существенно нелинейных моделей, для решения которых методы теории возмущений оказываются недостаточными, находит всё более широкое распространение в задачах математического моделирования такого рода разработок. Используемые при этом модели, а значит ...2022-12-29 -
High-Frequency Capacitor with Working Substance "Insulator–Undoped Silicon–Insulator"
(БНТУ, 2022)The study of the parameters of capacitors with various working substances is of interest for the design and creation of electronic elements, in particular for the development of high-frequency phase-shifting circuits. The purpose of the work is to calculate the high-frequency capacitance of a capacitor with the working substance insulator undoped silicon insulator at different ...2022-12-29 -
Possibilities of Using of Surface and Subsurface Waves’ Amplitude-Angle Characteristics for Control of Materials with Surface-Hardened Inhomogeneous Layer
(БНТУ, 2022)Improving the efficiency of ultrasonic control of hardened surface layers of metal products with a heterogeneous structure obtained using different technologies is a pressing problem of industrial production. The purpose of this work was to investigate the possibilities of measuring the depth of the surface inhomogeneous layer of steel objects on the basis of the use of amplitude ...2022-12-29 -
Неразрушающий контроль качества термообработки стальных образцов, полученных аддитивной технологией, магнитошумовым методом
(БНТУ, 2022)Производство изделий по аддитивным технологиям, как правило, сопровождается несанкционированным появлением и ростом неоднородности свойств, анизотропии, остаточных напряжений, пористости и других дефектов. Поэтому резко возросла актуальность неразрушающего контроля качества изделий, полученных с помощью аддитивных технологий. Цель работы – экспериментально исследовать возможность ...2022-11-11 -
Tensor Calculus in Digital Colorimetry
(БНТУ, 2022)Any object can have many implementations in the form of digital images and any digital image can be processed many times increasing or decreasing accuracy and reliability. Digital colorimetry faces the need to work out issues of ensuring accuracy, metrological traceability and reliability. The purpose of this work was to generalize approaches to the description of multidimensional ...2022-11-11 -
Non-Additive Quantity Measurement Model
(БНТУ, 2022)This work considers a model for measuring non-additive quantities, in particular a model for subjective measurement. The purpose of this work was to develop the measurement theory and form of a measurement model that uses the corrected S. Stevens measurement model. A generalized structure was considered that included an empirical system, a mathematical system, and a homomorphism ...2022-11-11 -
Spectral Ellipsometry as a Method of Investigation of Influence of Rapid Thermal Processing of Silicon Wafers on their Optical Characteristics
(БНТУ, 2022)One of the possible ways of improvement of the surface properties of silicon is the solid phase recrystallization of the surface silicon layer after the chemical-mechanical polishing with application of the rapid thermal treatment with the pulses of second duration. The purpose of the given paper is investigation of influence of the rapid thermal treatment of the initial silicon ...2022-11-11 -
Calculation of Correction Factors for Vickers Hardness Measurements on a Non-Planar Surface
(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 -
Correction of the Contribution of Scattered Photon Radiation to the Ionization Chamber Readings During X-Ray Radiation Quality Assessment
(БНТУ, 2022)Reduction of the systematic error when determining the characteristics of the reference X-ray radiation fields is an essential task according to the ISO 4037-1:2019 standard. This task is especially important in dosimetry laboratories when establishing the qualities of reference photon fields. The aim of the study was to develop a method that allows taking into account the ...2022-11-11 -
Development of Engineering Models of Nanosatellites for Student Training
(БНТУ, 2022)The work purpose is the development of BSUIM-1 and BSUIM-2 complexes for training specialists in the aerospace industry with the used engineering test beds and experimental facilities. Two sets of nanosatellite engineering models and ground stations had developed. They allow testing hardware and software of the onboard equipment and payload, simulating operation modes, and flight ...2022-11-11 -
Stand Equipment and Test Methods of Modern Optical Sights
(БНТУ, 2022)Manufacture of sights with high output characteristics is a prerequisite for achieving the necessary accuracy when shooting. The aim of the work was to analyze the influence of pancratic optical sights’ main parameters on their output performance characteristics. It is shown that in order to achieve the quality level of the world’s best samples, high image quality – no drop in ...2022-11-11 -
Структуроскопия витков пружин после высокотемпературной механической обработки на основе измерения скорости рэлеевских волн
(БНТУ, 2022)Для изготовления рессорных пружин подвижного состава (вагонов, локомотивов, автомобилей) применяют прутки из пружинных сталей. При высокотемпературной механической обработке при навивке пружин и их закалке возникает различие в скоростях охлаждения внутренней и наружной сторон витков пружины, что приводит к различию в структурном состоянии и сказывается на долговечности пружин. ...2022-07-06 -
Probability of Erroneous Data Registration in a Single Photon Erasure-Type Communication Channel with a Receiver Based on a Photon Counter
(БНТУ, 2022)When measuring low-power optical signals, it is necessary to ensure the highest reliability of the received data, which is especially important for single-photon communication channels. This determines the expediency of using photon counters as receiving modules for such channels. They are highly sensitive, but are characterized by data recording errors. Therefore, the purpose ...2022-07-06 -
Dynamic Features of Spectra of Single and Quasi-Periodic Measuring Signals
(БНТУ, 2022)Solving the problems of spectral processing of single and quasi-periodic signals in measurement and diagnostic systems is directly related to their isolation against the background of external interference or noise. The purpose of this work was to study single and quasi-periodic signals, i. e. signals limited in time, presented as separate components; development of a mathematical ...2022-07-06 -
An Approach to Monitoring of Magnetic Parameters of Cores of a Chain of Spheres. Diagnostics of Different Chain’s Length and Core’s Radius
(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 -
Influence of Cylindrical Shield Dimensions on Shielding Effectiveness
(БНТУ, 2022)Study of dimensional parametersʼ influence on shielding properties of cylindrical shields will allow to optimise the fusion process, as well as to reduce production costs by reducing the material used. The purpose of this work was to compare results of theoretical calculation of shielding effectiveness of an infinite cylindrical shield with the data obtained in real conditions. ...2022-07-06
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