2019 International Seminar on Electron Devices Design and Production (SED)
Proceedings. - Prague, April 23–24, 2019. IEEE Catalog Number: CFP19P59-CDR. ISBN: 978-1-5386-6524-4.
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Abstract— Applicants often do not choose technical education because of the difficulty of this sphere or the lack of engineering knowledge and real engineering practices that is so important. This issue opens up a new development space for educational software for the beginners and non-professional users. Such problem as the difficulty of choosing and obtaining an engineering education is considered. This paper presents an investigation of the electrical circuits and development of a program module for the schemes’ analysis that could be easily embedded in educational establishments. Existing technics for analyzing electrical schemes were observed and the most effective one was chosen. The main goal was reached by using the WPF technology of .NET Framework. Altogether, the research provides a simple instrument for circuit analysis that gives some helpful information about electricity and the circuitry. It automates verification of practical tasks and exercises made by students and allows to refuse the use of complex electrical stands. Furthermore, the developed application can be integrated into the educational system as a tool for teaching staff and development of popularity for technical specializations.
The methods under the generalized name Foresight have proven to be the most effective tool for selecting long-term priorities in science and technology in various industries, the success of which ultimately effects the socio-economic development of the country. The strategic forecast in the humanitarian and technical areas often relies on statistical modeling (extrapolation to the forecast horizon, correlation, and regression analyzes, etc.). The Foresight Modeling method can most productively effect the development of the following approaches: Delphi, critical technologies, development of scenarios (options), technological roadmaps, relevance trees, analysis of mutual influence, and the formation of expert panels. In this paper, Foresight Modeling is developed in order to solve problems of ensuring high quality and reliability in the early stages of development of space electronic equipment, considering the relationship of electrical and thermal processes in it. It proposes to combine two existing groups of expert specialists in modeling w1ith dissimilar electrical and thermal factors into a single group in accordance with the integration of the mutual influence of the processes.
In this paper, we would like to suggest the algorithm of optoelectronic devices’ thermal working modes providing method. It solves the problem of gaining the projected working accuracy in high heat load including internal heat release on electronic components of printed circuit assemblies and optical part of optoelectronic device – the problem that is often faced by optoelectronic devices’ designers. We focus on implementation of this method in Zeeman-based frequency biasing laser gyroscope also known as Zeeman laser gyroscope. Below was given the example of the electronic assembly/component thermal model testing and Zeeman laser gyroscope thermal model was built. Note that the using method is applicable not only for Zeeman laser gyroscope but also for vast variety of optoelectronic devices. Implementation of this method in optoelectronic devices’ design allows us to get system approach and improve reliability and working accuracy to required levels.
In order to assess the level of electronic means reliability, it is necessary to have a methodology for analyzing the results of calculating its reliability indicators, such as the probability of failure-free operation or mean time between failures, which allows to evaluate which of the parameters most strongly affects the final value of the failure rate of electronic component particular type. As a result of analyzing the reliability of electronic mean all-levels components, the engineer should obtain the values of the reliability indicators, the boundary values of the controlled parameters, and also give recommendations on certain changes necessary to improve the reliability, thereby implementing the reliability management methodology. This technique, in contrast to the already known ones, will allow analyzing the calculated values of the indicators and using the relative sensitivity function to determine the contribution made by specific parameters: temperature, element ratings, their operating voltage, current, power, tolerance level, while previously contribution was estimated by the numerical value of a separate correction factor. Application of the developed methodology for analyzing the results of calculating the reliability of electronic means allows to specify the recommendations for changing parameters in order to improve the reliability of the elements that make up the product in question.
The paper presents the results of air penetration strength experimental studies for a two-electrode system consisting of a small radius and plane hemispheres as the method of technical equipment testing for determining their resistance to electrostatic discharges. The hemisphere radius is much smaller than the distance between the electrodes, so the mathematical expression is used since the 50s of the last for the formal determination of the electric field intensification (gain) coefficient value on the hemisphere radius normally directed to the plane. Because of comparing the experimental data obtained by the magnitude of the electric field gain with the calculated values using the above formulas, it was concluded that these expressions are applicable for solving more complex physical and technical problems related