Baraban M. Unijunction generalized immittance converters for sensors of physical quantities and components of computing devices

Object of research - the process of converting information signals in specialized devices of data processing with frequency representation; objective of work is improving the technical characteristics of sensors of physical quantities (SPQ) and components of computing devices by using unijunction generalized immittance converters (GIC); methods of research are based on the using theories: matrix, a conform displaying of immittance converters, analysis of electrical circuits, planning of experiment and computer simulation; theoretical results: first obtained a mathematical model of the physical processes occurring in the unijunction transistor at high frequencies, which allowed us to obtain analytical expressions immitance parameters of GIC that based on it, GIC are used for developing basic units of SPQ with high quality factor and temperature stability; method of circuit-functional building SPQ components and computing devices is improved, which, unlike existing, is used unijunction GIC, which provides simplified technical implementation and improves noise immunity of SPQ and components of computing devices; a mathematical model of evaluating the effectiveness of combined controlled elements using unijunction GIC has received further development, which unlike existing, considers options of GIC and two electrode managed element, which allows a comparative evaluation and determine the best option of combined managed element. Practical results - practical data that confirms the reliability of analytical expressions transformed immittance two-parameter GIC based on unijunction transistor structure are obtained; methods for calculating parameters of SPQ, reactive elements and resonance circuits are proposed; electrical schematic diagrams and topology SPQ components and computing devices are designed and implemented; SPQ, which, unlike existing, hasn't built power source that would reduce energy consumption by 1.5-2 times, are developed and investigated; software for calculation efficiency of combined managed elements is developed. Degree of application - main results are introduced on the Scientific Research Institute "Helium" and in the learning process of Vinnytsia National Technical University. Scope (branch) of use - information measuring and specialized computer systems.