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  • Comparative analysis of additive technologies used to form electromechanical structures of functional devices

    The paper provides a comparative analysis of additive technologies in the field of formation of electromechanical designs of functional devices. In particular, the problem of using additive technologies, their relevance in relation to modern needs in different fields of science and technology is put, the essence of additive technological processes for the production of various kinds of products is revealed and a specific design and technological approach for creating a modular product on the basis of these technologies is defined.

    Keywords: additive technologies, printed circuit board, 3D printing, fused deposition modeling , selective laser sintering, stereolithography, digital light processing, direct metal laser sintering, selective laser melting, direct ink writing

  • Universal power supply with digital system for monitoring the parameters of the galvanic environment

    This paper describes the results of modeling thermal processes and air flows occurring in a universal power source (UPS) with a digital control system for output parameters under given operating conditions. The UIP is intended for scientific research in the field of electrochemical copper deposition in order to form through and via holes in printed circuit boards, three-dimensional microassemblies, metallization of epoxy resins, and organic materials. The article discusses the features of the development of a universal power source, presents the key results of the design and study of the thermodynamic characteristics of a prototype sample.

    Keywords: universal power supply, microcontroller, computer aided design, printed circuit board, efficiency factor, computational fluid dynamics, mechanical computer aided design, electrical computer aided design, design rule checking, finite element method

  • Development and design of bimorph thermal actuator and а micromirror based on it

    A design of the actuator, consisting of a thin layers of silicon dioxide and aluminum is proposed. There are calculations made of the response speed and heat dissipation of the actuator. By making the best selection of layer thicknesses and optimization stages of technological process, in particular the deep selective etching of silicon, the best performance on the angle of inclination of the actuator and the speed of the device could be achived. The greater the difference between the initial temperature and the heating temperature, the stronger the beam of the actuator is lowered to the plane of the silicon plate, and, therefore, less angle of elevation above the surface of the silicon plate. It is thus possible to control the angle of the beam by selecting the appropriate heater and voltage, providing the desired temperature. The design of the micromirror device based on the proposed actuator is provided. The developed design is based on the actuator and allows for controling the tilt of the mirror in a wide range.

    Keywords: silicon, termoactuator, micromechanical systems, bimorph structure, micromirrors

  • Abstracts

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