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Documentation of Barová cave - central part
Chaloupka, Roman ; Machotka, Radovan (referee) ; Kratochvíl, Radim (advisor)
The aim of this bachelor thesis is the graphic documentation of Barová cave – central part in the form of a plan and transection in a scale of 1:250. The thesis contains, including brief description of the area, all steps from reconnaisasance and completion of the existing measuring network to the measuring and processing part leading to the creation of the resulting map.
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Impact hammer calibration
Bilík, Šimon ; Klusáček, Stanislav (referee) ; Beneš, Petr (advisor)
The theoretical part of this thesis focus on the description of the piezoelectric accelerometers and their use for the impact measurements. It also characterizes the construction and the calibration process of the impact hammers with the use of the piezoelectric accelerometers. The practical part describes the place of calibration with the calibration tools, identifies the source of the oscillations on the output signal of the accelerometer and suggests its compensation. Part of the thesis is a service program for the impact measurement, analysis and the impact hammer calibration. Thesis also describes the methodology of the calibration and quantifies the measurement uncertainty.
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Determination of device geometrical misalignments influence on dimensional measurements in X-ray microcomputed tomography
Blažek, Pavel ; Klapetek, Petr (referee) ; Zikmund, Tomáš (advisor)
Tato práce se zabývá geometrickými nepřesnostmi v geometrii rentgenového počítačového tomografu (CT přístroj). Především jejich vlivem na výsledky metrologických měření a metodami kterými lze tyto negativní efekty eliminovat. V práci jsou prezentovány výsledky simulací CT měření v softwaru aRTist při kterých byli nastavovány nepřesnosti v pozici detektoru a osy rotace vzorku. Ukazuje se tak, které geometrické faktory mají na měření největší vliv. Praktická část se pak zabývá CT přístrojem HeliScan, který využívá unikátní rekonstrukční algoritmus k eliminaci geometrických nepřesností. Jsou vyvinuty referenční objekty (pláty s rubínovými kuličkami a zirkonová koule), které splňují požadavky normy VDI/VDE 2630 1.3. na testování metrologických schopností přístroje. Objekty vhodné pro měření ve větším zorném polem byly vyrobeny, zkalibrovány a otestovány v CT měření.
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The determination of the composition of refractory material by X-ray fluorescence.
Janča, Martin ; Šilerová, Iva (referee) ; Šiler, Pavel (advisor)
The goal of this Bachelor thesis is to find the right way for the analysis of the refractory materials that would be accurate and could be repeated. The ideal method that would help us achieve our goal seems to be the fluorescent spectrometric analysis. This method is used very often in case of instant control of the quality of production in the cement and other heavy industry enterprises. Using the fluorescent spectrometric analysis comes with one issue, which is the presence of many distorting interferences. From this particular reason it is necessary to identify these interferences and then find the ideal solution of their elimination. Because of the possibility to have the sample in any shape or form at the x-ray florescent spectrometer it was necessary to choose the right method of preparing the sample for the analysis as well as choose the right parameter for the measuring itself and for the elimination of undesirable interferences.
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Flow measurement
Schoř, Zdeněk ; Boček, Petr (referee) ; Beneš, Petr (advisor)
This bachelor thesis deals with flow measurement of liquids. The first part is a theoretical analysis with an overview of the most important parameters of flow sensors, the main parasitic influences and methods for calibration of flow sensors. The second part is the design and realization of the laboratory apparatus for measuring the flow of water, which is intended for the teaching of students. The apparatus is designed to test four flow sensors using weighing reference. The result of the practical part is the measurement of the basic characteristics of the flow sensors used and comparison of the obtained values with the data from a manufacturer. Further parasitic influences are added during the measurement and is determined to what extent they affect accuracy of the measurement.
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Calibration of temperature sensors
Záboj, Jakub ; Charvát, Pavel (referee) ; Štětina, Josef (advisor)
How the change of temperature works on physical properties of substance and materials is described in this bachelor’s thesis. Historical development of thermometers and measuring of temperature that goes to the standard temperature scale. There is summary of today's ther-mometers and their detailed descriptions. Select calibrators follow as an instrument for check and calibration temperature sensors (thermome-ters). For example there is described calibration of thermocouple, where we put at their self - characteristics of thermocouple. The most frequen-cies mistakes during calibration are summered there and also description between different calibrations methods finally.
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Temperature sensors
Mudrák, Michal ; Březina, Michal (referee) ; Štětina, Josef (advisor)
This bachelor thesis deals with problem int the field of temperature sensors. The beginning of the work is devoted to the definitions of the basic terms which are closely related to this topic. It is followed by distribution, description of the principle and realization of touch sensors with an electrical output. Marginally are discussed suitability of use and comparison of individual sensors. Next, the principle of calibration of resistance and thermoelectric sensors is described. The most common sources of calibration errors and measurement offsets are also summarized. At last, there is a practical example of linear calibration of chosen temperature sensors.
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Augmented Reality for Desk Games
Bačovčin, Juraj ; Kapinus, Michal (referee) ; Beran, Vítězslav (advisor)
This bachelor thesis deals with the realization of a chosen board game for an interactive table. The goal is to design, implement and test a new user-friendly user interface of the game application without losing any key aspects defining board gaming. The resulting program is executable on the ARTable3 workspace capable of projecting any image onto the touch table and capturing real-time events from its surface. It has undergone proper functional and usability testing, making it possible to consider it fully functional and ready for any expansions proposed in the final sections of this document.
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