Перегляд за автором "Sychova, O."
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Публікація Development and study of the operation of the module for determining the orientation of the manipulator joint(ХНУРЕ, 2022) Nevlyudov, І.; Novoselov, S.; Sychova, O.In the field of mechatronic systems, manipulators are often used for automated assembly of products, welding, painting parts and more. An important task is to optimize the travel time along a given trajectory of the manipulator. To solve this problem, it is necessary not only to accurately estimate the speed of the manipulator nodes, but also to provide a linear characteristic of the assessment of the position of the mechanism in a wide range of speeds. The matter of the article are methods for determining the orientation of the joint of the manipulator. The goal of the work is to develop a module for determining the orientation of the joint of the manipulator and study its operation in order to determine the suitability subject of the structure for practical use. The following tasks are solved in the article: to investigate the principles of determining the orientation of the joints of industrial robots; choose the design of the orientation determination module; develop an algorithm for determining the position of the joint at any time; perform experimental studies of the position determination module in order to confirm the suitability of the structure for practical use. The following methods used are: experimental research was conducted on a real object - a model of the manipulator joint, created using methods and tools of 3D prototyping; to determine the position of the joint of the manipulator used methods of processing signals received from sensors; processing of experimental results and calculation of values of errors of positioning of a joint of the manipulator is based on methods of the statistical analysis of random sizes. The following results were obtained: the principles of determining the orientation of the joints of industrial robots were studied; the design is developed and the module of definition of orientation of a joint of the manipulator is created; developed an algorithm for determining the position of the joint at any time; the suitability of the design for practical use has been experimentally confirmed. Conclusions: in this paper, two variants of the sensor design are proposed to determine the absolute angle of rotation of the manipulator joint: resistive and magnetic. The proposed design of the resistive sensor was non-technological and much larger than the design of the magnetic sensor. The data obtained in the process of conducting experimental studies of the proposed method of measuring the angle of rotation of the mechanical gearbox of the manipulator joint indicate a fairly accurate determination of the angle using a magnetic sensor. The calculated measurement error was less than 1.4 degrees. The results of the experiment also showed that in addition to the radial direction of movement of the gearbox of the manipulator joint there is a significant displacement along the working plane, and in some cases, such displacements are chaotic. This is due to some defects and imperfections of the surface of the manufactured parts of the joint model used in research.Публікація Impact of technological operations parameters on moems components formation(2019) Filipenko, O.; Chala, O.; Bortnikova, V.; Sychova, O.; Botsman, I.In the paper the modeling results for the process of MOEMS functional surfaces shaping are presented. The significance and magnitude of factors that directly affect the shaping process of MOEMS functional surfaces were determined.Публікація Methods of Organizing Communication Between Microcontrollers in the System of Monitoring Energy Consumption(2020) Novoselov, S.; Sychova, O.This paper discusses the principles of building networks based on modern LoRaWAN modems. The basics of implementation of data exchange in these networks are given. Experimental studies have been carried out which showed that in the case of “floating window” it is possible to increase the capacity of the network up to 10…15 packets per second without loss of data transmission speed.Публікація Monitoring of Photonic-Crystal Fibers Positioning in the Connection Process(ХНУРЭ, 2008) Filipenko, A.; Sychova, O.In this report the monitoring method of PCF positioning at the connection process is offered. It is based on the matched filtration principle in the form of autoconvolution. Equations which connected PCF core axis coordinates with the maximum value of optical field intensity autoconvolution was obtained. It is shown that optical fiber displacement relatively base coordinates corresponds to half coordinates of autoconvolution maximum. Researches have shown that the offered method possesses high noiseproof factor and much higher accuracy in comparison with an integrated method.Публікація The analysis of creation perspectives of photonic crystal fiber components(Kharkiv National University of Radio Electronics, 2006) Filipenko, A.; Sychova, O.The creation perspectives of components on fibers of new type - photonic crystal fibers, possible areas of their application are considered. Comparative analysis PCF and standard quartz fibers are carried out. Advantages and limitations of PCF use in electronic techniques are selected. The further direction of researches is determined.Публікація The analysis of photonic crystal fibers opticalgeometrical properties and their impact on transfer parameters(Технологический центр, 2012) Filipenko, A.; Donskov, A.; Sychova, O.In microstructured optical fibers some defects are inherent to the fabrication process. One can mention, for example, the inhomogeneity of the initial preform: diameter, position of the inclusions (when the hexagonal stack is assembled before drawing) and refractive index that evolves along its axis. These defects will lead to transverse disorders in the final fiber. Therefore, the analysis of photonic crystal fibers optical-geometric properties and their impact on transfer parameters is very important. We note that in our investigation we use finite-element method. The obtained results show that at any of considered defect types the mode field will have two pronounced maximums. The results presented in this work show that total mode field power increases with decreasing the mean diameter of air holes. Another important result is that random variations of diameter of inclusions (air holes) can lead to an increase of total mode field power. We also have shown that random variations of inclusions diameter can increase the total mode field power. In the part 2 the signal losses caused by the difference of mode fields effective areas of connected fibers are determined. Further research in this sphere is directed to the study of influence of other optical-geometric PCF parameters, as well as their connection to the signal transmission. All presented results will be helpful for tolerance of fabrication processes and for better understanding the role of random variation of geometrical behaviors (arising at fabrication processes) on operation parameters of microstructured optical fibers.Публікація The Identification Method of the Photonic-Crystal Fiber Mode Field Diameter Maximum Position: Experimental Researches(Odessa I. I. Mechnikov National University, 2016) Filipenko, O.; Sychova, O.The research results of the determine method of the position of the mode field diameter maximum of photonic- crystal fiber are represented in this article. Using of this method will lead to decrease of the optical losses in connection of two identical PCF due to their precise positioning on mutual rotation angle. Image of mode field is analyzed by the near-field technique.