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Automation of the calibration process
Mařas, Michael ; Šedivá, Soňa (referee) ; Beneš, Petr (advisor)
This master thesis deals with the automation of the calibration process at the workplace for calibration of electronic power meters and the description of the method of evaluation of calibration results. The paper analyses the calibration workstation and the manual method of calibration performed by the calibration laboratory staff. Furthermore, proposals for automating the manual method of calibration and a description of the implementation of a program for automating this process are given. Subsequently, the uncertainty analysis is described in the paper. In this section, the uncertainty analysis according to the GUM method and the subsequent calculation of these uncertainties are presented. The correctness of the calculation of uncertainties according to the GUM method is verified by the Monte Carlo method. In the last part of the work, the method of evaluation of the calibration results according to ILAC-G8:09/2019 is described and the form of the calibration protocol is described.
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Implementation of a Multipurpose Measurement System for (Sub)Terahertz Electron Spin Resonance Spectroscopy
Šedivý, Matúš ; Malik, Aamir Saeed (referee) ; Epel, Boris (referee) ; Vrba, Radimír (advisor)
Spektroskopie elektronové spinové rezonance (také nazývaná elektronová paramagnetická rezonance nebo jen EPR) zahrnuje metody, které zkoumají hmotu prostřednictvím nepárových elektronů. Jednou z progresivních metod EPR je rychlé skenování, které umožňuje pozorovat kinetiku chemických reakcí. Kromě toho nedávný vývoj vysokofrekvenčních součástkách rozšířil použití vysokofrekvenční EPR (HFEPR), které využívají sub-terahertzové až terahertzové vlny. Tato práce se zabývá propojením obou cest do HFEPR spektrometru s rychlým skenováním frekvencí (FRaScan), který byl nedávno vyvinut na CEITEC VUT. Na začátku je stručně uvedena základní teorie k EPR, následovaný přehledem přístrojového vybavení pro HFEPR. V praktické části je popsáno technické řešení spektrometru. Důraz je kladen na implementaci softwaru, pomocí kterého je spektrometr ovládán a měření jsou automatizována. Následně jsou ukázány příklady z měření pevných látek, konkrétně karbidu křemíku dopovaného vanadem (SiC:V), ftalocyaninu líthia (LiPc) a krystalu 1,3-bisdifenylen-2-fenylallylu (BDPA). Příklady demonstrují schopnosti spektrometru získat multifrekvenční vlnově spojitá EPR spektra a frekvenčně rozmítaná spektra v závislosti na teplotě a orientaci vzorku, a taky spektra pomocí rychlého skenování frekvencí
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Comparison of measurement accuracy of optical and 3D kinematic system
Surkoš, Ondřej ; Adamík, Richard (referee) ; Kundera, Václav (advisor)
The bachelor thesis deals with the comparison of the accuracy of two instruments for measuring the vertical jump, using a different measuring principle, namely "Optojump next" and "BTS Smart DX". In the theoretical part, the individual devices are discussed, on what principle they work and are compared with each other. In the practical part we deal with the methodology, processing of measured data and evaluation of the results of measurements.
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Panel meassurement device
Vaško, Pavel ; Kaczmarczyk, Václav (referee) ; Bradáč, Zdeněk (advisor)
The master thesis includes a literature search, which is focused on questions around panel measure instruments for measuring analog voltage signals. There is the block diagram and the concept of measuring voltage values designed from collected information and defined requirements to the device. In the next step a design of the circuit diagram is created and published and consequently transferred into PCB. The whole board has been fabricated, assembled and tested. The firmware development starts with the definition of basic functional blocks for using of internal elements of the device, which is followed by the implementation of the Modbus slave station service routine. The top part presents graphical user interface on the device.
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Apparatus for parameter identification instrument voltage transformer
Tománek, Drahomír ; Valenta, Jiří (referee) ; Dohnal, Petr (advisor)
This master thesis describes the design and production of devices for identifying the parameters of the instrument transformer. Work is divided into seven chapters. The first part focuses on the production of instrument voltage transformer. The next section describes the measurement and description of the parameters of instrument voltage transformer and design of printed circuit boards. Another section is devoted to a program for measuring card. The final part is manufactured and tested unit conducted the first test measurements.
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Design of Lacquer Thickness Meter
Rzyman, Michal ; Sládek, Josef (referee) ; Rubínová, Dana (advisor)
This bachelor thesis deals with the design of a device designed to measure the thickness of the paint. The aim of the thesis is to design a device that is visually attractive and has a well-designed ergonomics. The result of the work is a hand-held device that comes out of the shape of a pen. The grip parts are designed from soft plastic and the buttons are appropriately spaced. The whole device is designed in an elegant shape inspired by the automotive industry. Particular benefits for this area can be, above all, these things. Compact shaping, using the latest technology, namely USB type C, electronic gyroscope or Transreflex LCD display. The overall benefit of the work is a different new look at the traditional design and the whole concept of measuring devices.
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The universal timer
Kobza, David ; Murina, Milan (referee) ; Sedláček, Jiří (advisor)
Overview of basics functions characteristics and requirements of timing device. Design of basic controlling unit and designating part. Description about basic parts and characteristic of their activities. Schematics presentations for realisation. Detailed instructions for handling device. Firmware of device in LSA. Evaluation goals, overview of informations sources and list of using literature sources.
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Design of public health scan
Horáková, Veronika ; Buganská, Tamara (referee) ; Křenek, Ladislav (advisor)
As a main in this project is the shape. The feature component for completely creation look was the conception of the base part of the machine with buit-in computer unit. I was get along from the base conception to the design partial fragments of the machine and associate complex look of ultrasound. The function of the machine is relatively difficult and analysis of it is complicated in time. That is why I am introducing only evolution of design and ergonomy. The aspire was to approach medical diagnostic machines to patients and raise the positive thinking to them. The colour alternation is choose with the respect to psyche of examine human at the same time.
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Comparison of measurement accuracy of optical and 3D kinematic system
Surkoš, Ondřej ; Adamík, Richard (referee) ; Kundera, Václav (advisor)
The bachelor thesis deals with the comparison of the accuracy of two instruments for measuring the vertical jump, using a different measuring principle, namely "Optojump next" and "BTS Smart DX". In the theoretical part, the individual devices are discussed, on what principle they work and are compared with each other. In the practical part we deal with the methodology, processing of measured data and evaluation of the results of measurements.
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Detekce různých typů defektů pomocí tahové zkoušky
Bětík, David
My bachelor´s thesis focuses on area of tree stability, description of particular defects on tree trunks and data collection using tensile test. Obtained data are then being evaluated. Further my work treats mechanical characteristics of wood and tree response to load by the means of so called adaptation growth. Evaluation of the results refers to the fact that even a significant defect on tree trunk must not have a significant influence on tree stability, but it is important that the defect is orientated.
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