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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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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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Automation of track for measurement of water valves characteristics
Lekeš, Pavel ; Havránek, Zdeněk (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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Design and verification of a thermodynamic sensor with a focus on high sensitivity
Staroštík, Petr ; Jankovský, Jaroslav (referee) ; Otáhal, Alexandr (advisor)
This work deals with the issue of using bolometers, calorimeters a thermo-dynamic sensor in measuring temperature and heat. In the case of bolometers and microcalorimeters are described their properties and limit parameters. The work focuses more closely on the construction of a thermodynamic sensor from discrete components with a focus on achieving high sensitivity. The sensitivity of the thermodynamic sensor was measured in an experiment with a defined heat change and evaluated. Using this experiment was set the measurement methodology, which was subsequently modified. As part of the bachelor's thesis was designed a new sensor for a thermodynamic sensor and was measured its sensitivity.
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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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