National Repository of Grey Literature 137 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Advancements in the development of a proportional counter measuring system
Kolář, Ondřej ; Kubíček, Michal
This paper is an interim report of theory and continuouswork on the proportional counter measuring system. Thefirst part of the article covers general principles and propertiesof several types of electronic detectors for measuring the ionizingradiation fields including the proportional counters, to highlighttheir positives and negatives. The following part discusses theprocessing of proportional counter output signal. Next, theconducted measurement of a neutron source is described, and itsresults are shown. Based on the gained experience, the simulationand design of a new preamplifier for the measuring system wascarried out.
High-power LED driver for under-water communication
Hroch, Vojtěch ; Barcík, Peter (referee) ; Kubíček, Michal (advisor)
This bachelor thesis is focused on design of a transmitter for optical links in water using power LED. This thesis analyzes commercial availability of LEDs and their properties, power transistors needed to switch the diods and choice suitable transistor drivers. Furthermore, the thesis is focuse on modulations, which are using in optical communication. Work mentions some aspects of this issue for the underwater signal transmission in terms of the required wavelength depending on the attenuation of optical signals in water. Next solved problematic is designs of circuits including the the design of printed circuit boards. Last part in this work is evaluation of achieved results in comparison with expectations and the possibility of futher improvements.
Smart charger with cell identification
Alechko, Ivan ; Harvánek, Michal (referee) ; Kubíček, Michal (advisor)
Cílem bakalářské práce je zvolit vhodnou metodu pro identifikaci jednotlivých akumulátorových článku a vybrat vhodný způsob jejich nabíjeni. Ze zvažovaných metod identifikace jsem vybral jako vhodnou technologii RFID. V práci je popsán princip identifikace včetně konkrétního návrhu pro následující realizaci funkčního zařízeni. Část práce je věnovaná problematice nabíjeni akumulátorů. V této části je detailně popsán charakter nabíjeni článku v závislosti na jeho chemickém složeni. Pro realizaci (demonstraci funkce) jsem zvolil technologii nikl-metal hydridových článků (Ni-MH). Důraz jsem kladl na bezpečné a zároveň efektivní nabíjeni. Dalším úkolem bylo navrhnout metodu dlouhodobého sledování stavu akumulátorů v průběhu více nabíjecích cyklů. K tomu bude sloužit mikrokontrolér, který bude pro každý článek zaznamenávat údaje o nabíjecím cyklu.
Vehicle Safety Systems
Langr, František ; Kubíček, Michal (referee) ; Povalač, Aleš (advisor)
This thesis looks into car industry safety systems research and an appropriate implementation into a scale model (demonstrator). For the model there are selected active safety systems based on distance sensors of various principles. The thesis contains a detailed description of the selected sensors together with the selection of a suitable demonstrator control device. There are active and passive safety and vehicle assistance systems explained. The thesis further discusses the design of individual 3D printed parts of the demonstrator chassis and their development. The components and circuitry of the PCB are also described, along with the safety algorithm used and the operating firmware.
Smart charger with cell identification
Podaný, Matěj ; Povalač, Aleš (referee) ; Kubíček, Michal (advisor)
This thesis is looking for a suitable method of unambiguous identification of charging cells, so that it can monitor their capacity in the long term and eliminate defective cells. It proposes several such methods where only the most suitable one is selected for the subsequent demonstration. It describes the basic properties of rechargeable cells and selects the one that could be used to demonstrate the selected method of cell identification. It designs an intelligent battery charger which demonstrates the chosen method of identification on modified charging cells.
FPGA IP core for Sony IMX sensor interface
Musil, Milan ; Kováč, Michal (referee) ; Kubíček, Michal (advisor)
The diploma thesis deals with the implementation of the SLVS-EC interface into the FPGA. This interface is used in new SONY’s image sensors for high-speed data transmission. The introduction contains a description of the interface, its possible configurations and comparison with the sub LVDS interface used so far. This is followed by the selection of a suitable MPSoC with the Zynq Ultrascale+ architecture with focus to its hardware resources for receiving a high/speed signal. The main part of this thesis deals with the design of receiver for the SLVS-EC interface and decoding of the data. The raw image data is then stored in external RAM. At the end of this thesis is described the chosen methods of testing partial parts and overall design.
LHC Abort Gap Monitor acquisition system
Pacner, Petr ; Vágnerová, Jitka (referee) ; Kubíček, Michal (advisor)
Beam Dump Systém velkého hadronového urychlovače LHC je jedním z jeho kritických systémů. Ten se stará o odvedení urychlovaného svazku z~prostoru urychlovače do míst, kde je absorbován. Pro jeho funkci využívá takzvaný Abort Gap - prázdné místo ve svazku bez částic. Toto místo vznikne při injektování částic do LHC. Injekce není nikdy dokonalá, tudíž Abort Gap vždy nějaké částice obsahuje. Určitá výše energie může způsobit škody na zařízení. Proto je toto množství nutné kontinuálně měřit. K tomuto účelu slouží Abort Gap Monitor. Současná nainstalovaná verze Abort Gap Monitor využívá k měření analogové integrátory. Ty komplikují kalibrační proces z důvodu jejich výrobních nepřesnosti. Aby se tak zvýšila univerzálnost a reprodukovatelnost měření je snaha vytvořit akviziční systém, který využije digitální integraci. Tato práce si klade za cíl vytvořit, verifikovat a implementovat digitální akviziční systém. Akviziční systém je jeden z hlavních částí nového CERN SY-BI Abort Gap Monitor. Tento dokument je rozdělen na čtyři částí. První z nich stručně popisuje strukturu Beam Dump Systém a význam Abort Gap. V druhé části je popsán princip měření Abort Gap a metodologie vyhodnocování dat z Abort Gap Monitor. Následuje třetí část popisující současný systéme a jeho známé nedostatky. Pak se zabývá novou topologii Abort Gap Monitor a vývojem jeho akvizičního systému. Poslední oddíl tohoto dokumentu prezentuje simulace a měření získané pomocí nové realizace Abort Gap Monitor akvizičního systému a diskutuje návrhy pro další vývoj.
Proportional counter measurement system
Kolář, Ondřej ; Matěj, Zdeněk (referee) ; Kubíček, Michal (advisor)
This work focuses on development of a measurment system for proportional counters that are used to measure ionizing radiation. The system allows for data acquisition from proportional counters in form of time waveforms for further analysis. Core of the system is a Red Pitaya STEMlab 125-14 board which is able to record fast signals and transfer them to a computer for further processing. The first part of this work briefly describes theory of ionizing radiation and propotional counters. In the following part the measuring unit and its improvements are described. The main part of this work is focused on development of new software and description of individual software pieces. In the last part a real measurement is depicted, gathered data are analyzed and a machine learning method is proposed as a solution for proportional counters data analysis.
Detection Algorithms of Radar Targets
Štukovská, Petra ; Kovář, Pavel (referee) ; Veselý,, Jiří (referee) ; Kubíček, Michal (advisor)
This thesis focuses on detection algorithms of radar targets, namely on group of techniques for removing of disturbing reflections from static objects - clutter and for suppression of distortion products caused by the phase noise of the transmitter and receiver. Methods for distortion suppression in received signal are designed for implementation in the developed active multistatic radar, which operates in the code division multiplex of several transmitters on single frequency. The aim of the doctoral thesis is to design, implement in tool for technical computing MATLAB and analyze the effectiveness and computational complexity of these techniques on simulated and real data.
Power supply for acquisition and communication subsystem of a current transformer
Beran, Tomáš ; Král, Jan (referee) ; Kubíček, Michal (advisor)
This bachelor thesis is focused on designing a power supply for measuring part and communication part of a device, which is supposed to analyze current waveforms on high voltage lines. The power supply consists of a current transformer, control electronics, and accumulation elements. The thesis analyzes the current waveforms on high voltage lines to get an overview of input data so that the right current transformer can be chosen. A working principle of these transformers is described, as well as the options for accumulation elements. Power supply requirements for the power supply are determined as well. The next part of the thesis summarises this theoretical knowledge and applies it to the schematic design. This is followed by a description of the schematic with an included description of function blocks. Additional adjustments that would improve the power supply's properties might be mentioned. This will be followed by designing a PCB layout. The final part includes the manufacturing process and determination of parameters like power, efficiency, etc. In the manufacturing process, the PCB will be printed, soldered, and evaluated on an electrical test. The electrical test inspects the functionality of the designed power supply by simulating real-life scenarios of high voltage lines. At last, an impact of the power supply on the measuring system will be analyzed.

National Repository of Grey Literature : 137 records found   1 - 10nextend  jump to record:
See also: similar author names
12 KUBÍČEK, Martin
1 Kubíček, M.
1 Kubíček, Marek
12 Kubíček, Martin
4 Kubíček, Matěj
2 Kubíček, Milan
2 Kubíček, Miloš
1 Kubíček, Miroslav
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