Department of Design and Production of Radio Electronic Equipment

National Technical University of Ukraine
"Igor Sikorsky Kyiv Polytechnic Institute"

Software and hardware method radiometric studies

Author: Shpilin Oleg

Group: РБ-31м

Supervisor: Peregudov Sergii

ELK: Master

Speciality: 8.05090204 Biotechnical and Medical Equipment and Systems

Summary: Master's thesis, 111 p., 32 fig., 13 tab., 1 appendix, 29 sources. Background. Measurement of low radiation of biological objects is a difficult process because the input level in most cases comparable with its own noise radio-metric system. Known methods and means have certain drawbacks, including low accuracy and lack of visibility of research results. The creation of software and hard-ware tools processing method for radiometric measurement of own radiation of bio-logical objects is the actual task. The purpose of the study. The aim of the thesis is to improve the research process radiometric electromagnetic properties of biological objects in the millimeter range. Object is electromagnetic radiation of biological objects in the millimeter wavelength range. The subject of research is the processing of electromagnetic signals in bio-logical objects radiometric system of mm range. Research methods, techniques and theory circles computer design – a model when developing and processing signals in radiometric studies of biological objects; methods of the theory of differential calculus and mathematical statistics – for the processing of measurement results; radiometry methods – to study the electromagnet-ic properties of biological objects. Theoretical and practical significance of the results: 1) A simulation model of the hardware and software signal processing in the low block radiometric system software using LabVIEW. 2) The method of evaluation of basic parameters of the transmission line that connects the output radiometric system computer. 3) Improved radiometric method studies of biological objects of low natural radiation in the microwave range.

Keywords: radiometric system, biological objects, error measurement

The work consists of:  111 pages of explanatory note and 1 appendix

Explanatory note: Full text

Measuring the speed of sound in liquids

Author: Fedorenko Igor Vyacheslavovich

Group: РБ-31м

Supervisor: Movchanyuk Andriy Valerіyovich

ELK: Master

Speciality: 8.05090204 Biotechnical and Medical Equipment and Systems

Summary: Subject matter of the study – liquids. Scope of the study – the speed of sound in liquids. Objective of the study – to modify pulse method with the ability to obtain data on the speed of sound in terms of strong acoustic interference. The first chapter of master’s degree work covers the importance of a priori knowledge of the speed of sound in liquids, as well as the basic methods of measurement. The multifrequency pulse method for measurement of the speed of sound in liquids was proposed. The objective and tasks of the study were formulated. The possibility of using piezoelectric circular ring transducers for both thickness and flexural vibration forms was shown based on the results of mathematical modeling in the second chapter of the work. Mathematical modeling of the distribution of sound pressure in the measuring chamber showed that adequate measurement results may be obtained only in case of flat wave front. As a result of mathematical modeling, the expression for calculation of the critical radius of measuring chamber was acquired. The requirements for individual functional units of the measurer of the speed of sound were presented in the third chapter of master’s degree work. The modeling and design of the measurer units were performed. The model sample of measurer of the speed of sound in liquids that implements the multi-pulse method was manufactured. The measured values of the speed of sound in liquids, which match the reference values with sufficient accuracy, were shown in the fourth chapter of the work. The expediency of the measurements using frequencies below the critical frequency of thickness resonance of the piezoelectric transducer was proved. The potentiality of the proposed method of measurement of the speed of sound in terms of interference concentrated in spectrum was shown.

Keywords: speed of sound, multifrequency, pulse, ultrasound, piezoelectric transducers

The work consists of:  147 pages of explanatory note and 3 appendix

Explanatory note: Full text

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Презентація

Modulation radiometric measuring assembly of absorbed energy dose during phototherapy

Author: Lisnichyk Anatoliy Sergiyovuch

Group: РБ-31м

Supervisor: Yanenko Oleksii

ELK: Master

Speciality: 8.05090204 Biotechnical and Medical Equipment and Systems

Summary: Magister’s dissertation: 105 p., 30 Fig., 3 table., 26 sources. Object of research – methods of measuring the dose absorbed energy in light therapy. Purpose – to improve the accuracy of the luminous intensity along with the simplification of the scheme and increased sensitivity. Research methods – used in the computer modeling of propagation of optical radiation, the electronic package "Mathcad 15" using the Monte Carlo method. Methods of Mathematical Statistics processing results, the laws optical distribution visible light. Under the influence of light on the human optical range appear certain effects depending on the wavelength. In medicine uses the whole range of optical radiation for phototherapy. The essential task is to analyze modern equipment for measuring optical radiation in phototherapy, identify gaps and develop tasks to eliminate them. Holding modeling of light radiation and experimental study of light penetration in biological tissues. Developing a model channel modulation of light passing through biological tissues for combined impact. Master's thesis on materials published 2 abstracts at scientific and technical conferences, articles in professional journals and received one patent for utility model.

Keywords: modulation radiometr, light, intensyvnivst waves.

The work consists of:  106 pages of explanatory note and 1 appendix

Explanatory note: Full text

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Презентація

Suprasonic diagnosis of the frontal and millixary sinuses

Author: Yevtushok Vadym Viktorovich

Group: РБ-31м

Supervisor: Demianenko Petro

ELK: Master

Speciality: 8.05090204 Biotechnical and Medical Equipment and Systems

Summary: Master's thesis: 85 p., 28 fig. 6 Table. 1 Additionally, 27 sources. Object of research – methods of ultrasonic diagnosis of diseases of the frontal and maxillary sinuses. Subject of research – more informative ehozobrazhen obtained in A-mode operation. Purpose – is to improve the quality of ultrasound diagnostics conducted by the Assisted synuskopa in the A-mode, parameters pyezoperetvoryuvacha by improving and increasing the depth of penetration of ultrasound. Research methods – computer modeling in software package MATHCAD. The obtained results give an opportunity to increase the information content ehozobrazhen. As a result of analysis of the ultrasonic device, the theoretical analysis of possible structures Piezoelectric transducer may develop a broadband transducer echo.

Keywords: suprasonic, sinusitis, piezoelectric transducer, echoimage.

The work consists of:  90 pages of explanatory note and 1 appendix

Explanatory note: Full text