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Evaluation of semiconductor IR light source for photoacustic gas sensor
Miškov, Alexander ; Smísitel, Petr (referee) ; Hubálek, Jaromír (advisor)
Táto práca je zameraná na hodnotenie vhodnosti polovodičového zdroja svetla v strednej infračervenej oblasti pre fotoakustický senzor plynu. Teoretická časť práce bude venovaná známym technikám detekcie plynov, fyzikálnym zákonom, ktoré je potrebné pochopiť, a známym zdrojom infračerveného žiarenia, ktoré budú porovnané s predmetným polovodičovým zdrojom infračerveného žiarenia. V praktickej časti bude vysvetlená metodika hodnotenia IR zdroja svetla a budú prezentované výsledky.
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Gait detection and step counting using smartphone
Kočendová, Kateřina ; Vítek, Martin (referee) ; Němcová, Andrea (advisor)
The focus of this thesis is the detection of walking and running, followed by a step count. Testing is performed on signals of regular daily human activity that involve sections of running, walking or no activity. Those signals are logged using accelerometer in smartphone. The exact type of physical activity performed is distinguished by an average, variation coefficient and wave transformation methods. Basics statistic methods are used to quantify the number of steps taken during either walking or running. Algorithm for activity detection and algorithm for step counting are optimized and tested by a set of signals.
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Using the infrared camera in the measuring technique
Bayer, Robert ; Šedivá, Soňa (referee) ; Bejček, Ludvík (advisor)
The goal of this thesis is to get acquainted with contactless methods of measuring a temperature and give the reader an idea of it. Next goal is to master the working with IR visual display terminal FLUKE Ti55FT (and program equipment SmartView) a describe it to the reader too. Last goal is to translate the booklet "Introdution to Thermography Principles", published by FLUKE company, which will be enclosed in electronic form to the thesis in the appendix.
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Automation of track for measurement of water valves characteristics
Lekeš, Pavel ; Havlíková, Marie (referee) ; Šedivá, Soňa (advisor)
My diploma thesis describes upgrade of flowbench serving as test rig for regulation valves characteristic measurement. At the beggining, there is an introduction to the water regulation valves theory followed by current machine condition description. Next chapter defines needed improvements and at the end follows proposition of improvements and necessary component definition and final realization. Final chapter summarizes complete project.
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Monitoring system for small power plants
Vélim, Jan ; Šebesta, Jiří (referee) ; Fedra, Zbyněk (advisor)
he paper describes the design of a monitoring system for small power plants. The rotational speed of the mechanical drive of the generator is measured with an ATtiny2313 microcontroller which evaluates the speed and decides whether to connect or disconnect the coupling driver. Behind the generator voltage and current values are measured which the ATmeta8 microcontroller converts into digital data and sends through a serial link to the main unit. The data are processed in the main unit, displayed on a graphic LCD screen and saved in an external EEPROM memory.
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Wrireless electronic timekeeping with big LED display
Frydrych, Michal ; Macháň, Ladislav (referee) ; Jaroš, David (advisor)
This thesis deals with the design and realization of wireless electronic timer for fire sport. The first part of thesis provides an analysis of the given problems and all component parts of the system which are needed for time measurement in the fire sport. The principal aim of thesis was to create a wireless electronic timer for simultaneous measurement of up to four lanes. The designed measuring system is equipped with a large LED display to show the final time. Targets and starting pistols are wirelessly connected with the main unit of timer with using a communication platform IQRF. The whole device is structural designed to the handling was as simple as possible.
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Estimation of standard uncertainty of temperature
Beníšek, Ondřej ; Havránek, Zdeněk (referee) ; Šedivá, Soňa (advisor)
The bachelor thesis deals with determination of uncertainties of direct and indirect measurements by classical method (GUM) and Monte Carlo method. Specifically, it focuses on determining the uncertainty of the entire measuring chain when calibrating temperature sensors. It contains a design of a measurement experiment for calibrating temperature sensors in a calibration device with data transfer to a computer by a communication interface using a measuring instrument. The procedure for determining the uncertainty of the temperature measurement entering the proposed measurement is also given. The thesis also describes the realization of the practical measurement and the calculation of the standard uncertainty for the measurement by the classic method and Monte Carlo method. The results obtained are compared and evaluated.
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