http://dspace.nbuv.gov.ua:80/handle/123456789/61931 2026-05-04T10:01:17Z http://dspace.nbuv.gov.ua:80/handle/123456789/61976 Повышение точности узкодиапазонных импедансометрических каналов прямого преобразования Мельник, В.Г.; Семенычева, Л.Н. The paper deals with the results of researches of precision measurement channel, which is based on the AC bridge circuit with integral digital to analogy converter and an indicator of balance, which includes high-sensitivity integratingtype analogy to digital converter such as MAX132. Results of researches of the linearity characteristics of the transformation of the channel are given, its specific error are discussed. The ways of significantly reducing the errors caused by the nonlinearity characteristics of the ADC are proposed. 2011-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/61975 Оптимизация разрядноимпульсных технологий на базе применения двухконтурных генераторов импульсных токов Тертилов, Р.В. The approach of double-circuit pulsed current generator synthesis which allows by a given pulse pressure at the working volume by the way of solving inverse problems to carry out the synthesis of circuit parameters and operating modes of double-circuit impulse current generators is developed. The solving algorithm is proposed and the calculation example as well as main results is given. 2011-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/61974 Динамические режимы электромагнитного вибратора Виштак, Т.В.; Кондратенко, И.П.; Ращепкин, А.П. Methods of electromagnetic oscillator dynamic condition analysis depending on voltage, frequency, rigidity spring and friction sizes between billet and a mold are developed. Design of the offered electromagnetic oscillator with permanent magnets is described. Ranges of frequency change and amplitude of oscillator mobile part fluctuations are specified. The analysis of a dynamic status is executed on the basis of Kirchhoff and Dalamber equations system solution. Analytical interlinkage and electromagnetic force dependences on current value and displacement of the oscillator mobile part are established. 2011-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/61973 Методы определения составляющих полной мощности в системах электрической тяги Костин, Н.А.; Петров, А.В. Ways of definition of components of total power in systems of electric propulsion are stated. Using the method of correlation functions, the new approach to determination of these constituents is offered. The numeral calculations of active, inactive and total power are executed, and also coefficient of inactive power has been calculated by three methods. The estimation of relation of non-productive losses of active electric power to the reactive power conditioned flowing in a hauling network, to consumed is resulted also. It is set that this index can exceed 10%. 2011-01-01T00:00:00Z