Вісник Київського політехнічного інституту. Серія Приладобудування

Постійне посилання на фонд

https://ela.kpi.ua/handle/123456789/2117

ISSN 2663-3450 (Online), ISSN 0321-2211 (Print) Періодичність: 2 рази на рік
Рік заснування: 1970
Тематика: наукові та практичні дослідження в галузі сучасного приладобудування, зокрема – точного приладобудування, метрології, оптико-електронних систем, автоматизації та інтелектуалізації контрольно-вимірювальних пристроїв, технологій виготовлення деталей прецизійних приладів.
Попередня назва: Вісник Національного технічного університету України «Київський політехнічний інститут». Серія Приладобудування (до 2018 р.)
Офіційний сайт: http://visnykpb.kpi.ua/

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Зараз показуємо 1 - 20 з 965

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3D відеовимірювальна система для контролю виготовлення деталей підвищеної точності обробки
(КПІ ім. Ігоря Сікорського, 2021) Прокопченко, С. В.; Воскресенський, В. Б.
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Analysis of circuit solutions for choosing the converter for a walking hexapod robot
(КПІ ім. Ігоря Сікорського, 2022) Platov, Ilya; Pavlovskyi, Oleksii; Pavlovska, Yuliia
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Analysis Of Strength Criteria In The Design Of Products From Composite Materials
(КПІ ім. Ігоря Сікорського, 2021) Dzierwa, Andrzej; Stelmach, Natalia
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Analysis of the structure of interference coatings for the optimization of the parameters of narrowband optical filters
(КПІ ім. Ігоря Сікорського, 2024) Voronko, Andriy; Novikov, Denys; Verbitskiy, Dmytro; Voloshyn, Oleksandr; Belkevych, Oleksii
To monitor the parameters of semiconductor layers deposited from solid solutions of A3B5 compounds during the epitaxy, optical control methods are used. The choice of optical monitoring methods is determined by the reactor design, which requires non-contact, fast, and precise measuring of wafer surface parameters. During the growth of epitaxial layers, the deposition of semiconductor compounds causes changes in the optical parameters of the wafer surface. To ensure precise measurements, it is essential to monitor these parameters within a narrow spectral range. In electro-optical monitoring systems, narrowband interference filters are used to select the desired spectrum. However, this type of filters is sensitive to several factors, such as environmental conditions, aging of the coating, and the angle of incidence. As a result, the manufacturing of narrowband optical filters with stable and precisely controlled optical characteristics presents a complex challenge. This article analyzes the impact of various factors on the optical characteristics of interference coatings. Quantitative analysis of these shows that shift of the selected spectral band with central wavelength λmax can approach or even exceed the full width at half maximum (FWHM). These changes in the optical characteristics of narrowband filters lead to a decrease in the accuracy required for optical monitoring during epitaxial processes, which leads to inaccuracies in measurements. The results of this analysis will guide the optimization of thin-film structures used in narrowband optical filters. The study of the shift in the selected band also enables, within certain limits, controlled changes to λmax or the compensation of its shift its shift during regular factor variations. Ultimately, it enables to take these changes into account when designing electro-optical systems for monitoring the epitaxial growth of semiconductor heterostructures, which increases the accuracy and stability of optical measurements in the required accuracy range.
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Analysis of wave aberrations of intraocular lenses (IOL), implanted into a physical model of the human eye
(НТУУ «КПІ», 2015) Chizh, I.; Shysha, T.; Чиж, І. Г.; Шиша, Т. О.; Чиж, И. Г.; Шиша, Т. О.
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Analytical models of the initial signs of Parkinson's disease
(КПІ ім. Ігоря Сікорського, 2016) Skytsiouk, Volodymyr I.; Klotchko, Tatiana R.; Kovalenko, Julia A.; Скицюк, Володимир Іванович; Клочко, Тетяна Реджинальдівна; Коваленко, Ю. А.; Скицюк, Владимир Иванович; Клочко, Татьяна Реджинальдовна; Коваленко, Ю. А.
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Automated testing system for implants to regulate intraocular pressure
(КПІ ім. Ігоря Сікорського, 2020) Yanenko, Oleksiy; Tkachuk, Andriy; Tkachuk, Roman
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Basic principles of spatial position of imaginary and real TONTOR step
(КПІ ім. Ігоря Сікорського, 2022) Skytsiouk, V. I.; Klotchko, T. R.
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Comparison of 3d printed parts’quality using printers with “CoreXY” and “DELTA” kinematics
(КПІ ім. Ігоря Сікорського, 2024) Zhuk, Y.; Klotchko, T.
Additive manufacturing, or 3D printing, describes technologies that manufacture parts by depositing thin layers of molten material on top of each other and creating the final part layer by layer. Each layer is built on the basis of geometry designed in CAD systems. Additive manufacturing technology opens up new design approaches: "design manufacturing" versus the traditional "design for manufacturing" approach. Geometric freedom allows you to design products as they are visualized, without manufacturing restrictions. Recently, 3D printers with Delta-type kinematics have gained popularity, which is an alternative to standard, cartesian 3D printers. These models use a more complex control system due to differences in the generation of print paths, but may have some advantages over a cartesian configuration. In order to expand the knowledge of additive manufacturing, a comparative study was conducted with cartesian and Delta printers to evaluate the printing performance of the test part. This article examines 3D printers with CoreXY and Delta kinematics, compares their characteristics, and identifies key differences in printing processes. As an example, for quality comparison, arbitrary parts printed in batches of three units from the same material with the same settings inside the slicer program were considered. Parts from both 3D printers were scanned using a LIDAR scanner, and the resulting scan models were transferred to a CAD environment for comparison. The results of the comparison were obtained by the shape and quality of the surface, the production time of one part and batch of parts, mass and dimensional characteristics. Looking at the results, it can be seen that the parts printed by the 3D printer with Delta kinematics have a better surface quality without post-processing, while the parts printed by the 3D printer with kinematics CoreXY correspond as closely as possible to the dimensions specified in the CAD model.
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Correction schemes for the gyromagnetic compass
(КПІ ім. Ігоря Сікорського, 2022) Meleshko, Vladyslav; Romanov, Valery
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Design cautions for the multilingual data processing in p2p Networks
(НТУУ "КПІ", 2007) Poryev, G. V.; Порєв, Г. В.; Порев, Г. В.
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Detalization of recognition algorithms in diagnosing patients and evaluating their effectiveness
(КПІ ім. Ігоря Сікорського, 2022) Shulyak, O. P.; Mnevets, A. V.
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Determination of diagnostic signs of multiple sclerosis using TONTOR step model
(КПІ ім. Ігоря Сікорського, 2022) Skytsiouk, V. I.; Klotchko, T. R.
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Drone positioning systems that use digital cameras
(КПІ ім. Ігоря Сікорського, 2022) Averin, Dmytro; Borovytsky, Volodymyr; Mykytenko, Volodymyr
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Electromagnetic properties of cements for fixation of orthopedic constructions
(КПІ ім. Ігоря Сікорського, 2023) Yanenko, О. P.; Shevchenko, К. L.; Golovchanska, О. D.; Symonenko, V. S.
Introduction. In practical dentistry, a significant number of various materials are used - for filling teeth, for implant restorative surgery, as well as materials for prosthetics. In this case, metals, dielectrics and their combinations are used. The article is devoted to the results of the study of electromagnetic properties of a group of dental materials - fixing cements, which belong to dielectric materials. Theoretical and experimental studies of EMC materials from the arsenal of maxillofacial reconstructive and restorative surgery were also conducted. Significant EMC deviations were detected in some materials. Scientific results of experimental studies and relevant recommendations are presented in a number of authors publications both in Ukraine and abroad Main purpose of this study. Usually, the orthopedic constructions and the fixation cement are in physical contact with both the patient's hard and soft tissues. Since dielectric materials at a human body temperature of 310K form their own electromagnetic radiation (EMR), it is important to ensure their electromagnetic compatibility - the coincidence of EMR with biological tissues adjacent to the implant to exclude the appearance of complications during their long-term use. A highly sensitive (10-14 W) microwave radiometric system was used for the measurements. In process of research, the five most commonly used cement samples in orthopedics were studied. Therefore, the purpose of this study is to deter-mine the radiative capacity of cement as a material widely used in dental practice and to evaluate their level of electromagnetic compatibility with contacting biological tissues. Conclusions. 1. In the process of experimental and computational studies, the emissivity coefficients M of 5 cement samples were determined, which range from 0.13 to 0.63 units.1. 2. The first three samples (№№ 3-5) have a high level of electromagnetic compatibility (60...98 %), samples (№№ 6, 7) show much less coincidence with the EMR of the human body. 3. The results of the conducted research can be used by orthopedic specialists to select materials with greater electromagnetic compatibility.
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Ellipsoidal tontor step model of sensors for automated mechatronic systems
(КПІ ім. Ігоря Сікорського, 2023) Skytsiouk, V.I.; Klotchko, T.R.
Modern medicine widely uses mechatronic modules in systems of various purposes, such as automated systems of diagnostics, scanning, irradiation. Recently, mechatronic modules in robotic surgical complexes are gaining importance. Thus, with the use of integrated sensors in mechatronic modules, executive manipulators of automated systems, positioning accuracy in defined spatial coordinates can be maintained. This data helps the medical staff to diagnose, monitor the patient's condition and make treatment decisions. The main purpose of sensor support in mechatronic systems is to ensure the accuracy and reliability of the system's functioning. Sensors must be sensitive and stable enough to provide measurements with high accuracy and respond to changes in real time. In addition, similar mechatronic modules are combined with sensors to create bionic limb prostheses, to restore human movement functions in various orthopedic diseases. At the same time, the trajectory of the movement of the executive bodies of the mechatronic medical system, regardless of its purpose, during spatial transformations of searching for the coordinates of a real object, must be determined taking into account possible deformations. Therefore, the accuracy of real-world displacement in space is determined by sensors that measure the parameters of physical objects. Thus, real transformations can be defined by spatial deviations that can be described using an ellipsoidal model. Accuracy, like the strength of the mechatronic module of a robot arm, is a variable value. They depend not only on the number of joints and the mobility of the hinges, but also on the position of the manipulators in space. At one point of coordinates, the module can apply more force than at another. The same is true for positioning accuracy, where the positioning error is greater at some points than at others. Therefore, an important actual problem in the creation of medical robotic systems is to determine the step-by-step movement of such a module in the workspace. Therefore, the purpose of this work is to determine the ellipsoidal TONTOR step model of sensors for automated mechatronic systems, as the motion of the executive manipulators and sensors of the system during transformations from imaginary coordinate space to real space determines trajectory errors. Based on the existing opportunities analyzed in the work application of mechatronic modules in automated medical systems, relevant tasks related to maintaining the positioning accuracy of diagnostic manipulators and sensors are defined. The importance of sensory complexes in measuring various biological parameters that determine the patient's condition is noted. And this involves the application of models of spatial movement of the sensor in the working space of automated equipment, in particular, a robotic mechatronic complex. In the work, it is proposed to use the TONTOR step model to increase the accuracy of the realization of the movement trajectory of the sensors of the mechatronic automated system. The results of creating an ellipsoidal model of the TONTOR step, which most accurately reflects the features of moving an object in space during transformations of the transition to real space, are given.
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Features of the method on reducing complications and increasing the efficiency of transurethral laser resection of the prostate
(КПІ ім. Ігоря Сікорського, 2022) Nikitin, O. D.; Golovko, S. V.; Samchuk, P. O.; Yasynetskyi, M. O.; Nasheda, S. V.
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Flow Transducers Metrological Performances Optimization with Flow Bodies at Flow Asymmetry Conditions
(КПІ ім. Ігоря Сікорського, 2019) Korobko, Ivan; Pysarets, Anna
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Hexapod movement algorithms to avoid interference. Angular movement
(КПІ ім. Ігоря Сікорського, 2021) Platov, Ilya; Pavlovskyi, Oleksii; Pavlovska, Yuliia
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Image information density and lidar object interpretability
(НТУУ "КПІ", 2012) Kamerman, Gary W.; Kaмeрмaн, Гаррі В.; Kaмeрмaн, Гарри В.

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