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Electromagnetic interference and pacemakers
Kulík, Jindřich ; Richter, Miloslav (referee) ; Havlíková, Marie (advisor)
This thesis deals with electromagnetic compatibility of implantable electro-medical devices using in cardiology. The main aim of this thesis is detection of the resistance of implantable pacemakers (PM) and implantable cardioverter defibrillators (ICD) to the electromagnetic interference. In the first part of this thesis, a function of the heart, which is necessary for understanding of PM and ICD operation, is described. The function and construction of PM and ICD is detailed in the theoretical part as well. The next part is focused on the electromagnetic compatibility. The next part is description of the measurement method and the experimental arrangement used for practical experiments with electromagnetic resistance of PM and ICD.
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Power supply module for servo-drive
Kudláček, Pavel ; Procházka, Petr (referee) ; Červinka, Dalibor (advisor)
The aim of the diploma thesis is to theoretically design and to put the mains power supply module for two-axis servo amplifier TZG 560 with the total power 28kW for the company TG Drives into practice. The analytical design of the power part with the braking circuit, the calculation of power components’ heat balance, EMI filter design and realization of measuring, controlling and indication circuits are described in the thesis. In addition, the mechanical device construction, structure of the controlling program and the results obtained in the verification process of the module functionality are presented.
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Measure the impact of wireless technologies on TEM
Prokop, Martin ; Čudek, Pavel (referee) ; Polsterová, Helena (advisor)
The purpose of this diploma thesis is to research and compare available wireless communication technologies (frequency, modulation type, transmission speed and consumption). Describe transmission electron microscopes theory and deduce the most sensitive microscope parts to high frequency distortion. Investigate effect of wireless technology on CE standards and come up with, perform and evaluate the influence measurement of chosen technologies on base parameters of transmission electron microscope.
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Autonomous power supply with higher EMC requirements
Burian, Jan ; Deneš, Roman (referee) ; Hejátková, Edita (advisor)
This paper deals with design of mechanical and electrical components of autonomous power supply and its testing. It consists of selecting of the materials, draft of shapes and calculations of feed-throughs for the source container to ensure the required electromagnetic characteristics. It also includes the selection of electronic components, comparison of DC-DC converters and filter design with focus on the highest electromagnetic immunity and the lowest electromagnetic emissions.
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Electromagnetic compatibility tests
Kolařík, Jan ; Hoder, Karel (referee) ; Havlíková, Marie (advisor)
The aim of this bachelor project is analysis problems branch of science EMC. The bachelor project contains basic distribution field and description individual parts of the field. Next bachelor project contains detailed description of individual measuring devices and equipment test room of EMC in company AEV s.r.o. like are signal generator, spectral analyzer and antennes. Last part of bachelor project deals with measurement electromagnetic interference on the product from the company AEV s.r.o. in accordance with the standard TL965 and design report of tests for a customer.
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Relay output module for electronic tachograph
Feilhauer, Petr ; Sirka, Martin (referee) ; Zezulka, František (advisor)
This bachelor thesis contains detailed description of function and wiring current Electronic tachograph RE1xx from company UniControls-Tramex. For comparison there is mentioned description of competitor’s products from this branch. The part of this thesis is analysis of measurement actual speed on the train vehicles and analysis of imaging information to staff of vehicle. The base of this finding is making several projects about future way of development of this electronic tachograph. Main programmes of this thesis are design, implementation and verification functions of module relays outputs for Electronic tachograph RE1xx. Practically design must be satisfy with basic technical-law specifications, which refer of this branch for application this device. Thesis contains the description of single parts of scheme, control microcontroller, using of integrated circuits. Further thesis will contain theoretical calculations, design of main software and his implementation to the module. The aim of design and implementation of module relays outputs is evaluation reached outcomes from view technical solutions, functions and price statement of the module.
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Impedance Transformers with Impedance Ratio 1/50 Ohms for Wide Frequency Range
Zachar, Jiří ; Šebesta, Jiří (referee) ; Dřínovský, Jiří (advisor)
One of the aims of this bachelor’s project was to explore possibilities of the design of impedance transformers for a very wide frequency bandwidth (10 Hz – 100 MHz) with the impedance ratio 1/50 . It is not possible to cover this wide frequency band by one transformer, so the design was split into the design of two impedance transformers. The first transformer was realized on the ferrite coil RIK20. The second transformer was realized by with the components T16-1 and TT25-1-kk+ produced by Mini-CircuitsŽ company, and transform impedance directly in a high frequency range. The performance of realized transformers was approved by measuring transformed impedance on their outputs. The frequency band of transformers was determined from these data. Their insertion loss was also measured. The last part of this work was focused on measuring the insertion loss of EMI filters. The main task was to compare the impedance systems 1 /100 and 0,1 /100 and vice versa. The insertion loss was measured for several chosen EMI filters. The insertion loss of all filters reached approximately the same values for both impedance systems.
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The Design of Enlargement of Sensor and Control Module of Mobile Robots Named Brontes
Husar, Jan ; Kopečný, Lukáš (referee) ; Florián, Tomáš (advisor)
This bachelor's thesis deals with the proposal of the sensory module and the control of mobile robots named Brontes enlargement. For this purpose a printed circuit board named MX05 was created, which extends its functionality via connection to the control board named LTR001.2. Construction of the board was conducted on the bases of the needs and requirements coming from robot peripherals. The proposal was created containing the control, protection and filtering features. Further, the board was realized and inhabited. Using MX05 creates a great simplification of wiring and there is implied the extension of the original features that are useful not only in robots Brontes.
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Communication Environment for Spectral Analyzer Control
Smělík, Martin ; Šebesta, Jiří (referee) ; Dřínovský, Jiří (advisor)
The aim of this master‘s thesis was design a new communication interface for spectral analyzer Seaward EMC Spectrum Receiver, which instead of the RS 232 interface is connected to a computer via the USB interface. This thesis contains both hardware and software solution based on the analysis and comprehensive understanding of communication between the spectrum analyzer and the computer. Further it contains the whole realization of communication interface and an example of measurement of the EMC problems too. Last part of this thesis was a realization of the automatic measurement via the development environment MATLAB and Agilent VEE, which was used for measurement of noise background.
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