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Comparison of speed measurement by hydrometric propeller and laser anemometer
Kosík, Ondřej ; Haluza,, Miloslav (referee) ; Zubík, Pavel (advisor)
This final thesis deals primarily with the comparison of two calibration approaches. It determines the degree of mutual agreement and tries to answer the reasons of their deviations. This agreement was measured by the LDA method. It was found that the calibration approach based on the reference framework of values of the previous bachelor thesis differs systematically from the calibration using calibration equations obtained from certified laboratories by -2 %. The causes of this deviation were investigated using LDA and PIV. Although a significant number of measurements were performed, all tested hypotheses were refuted and therefore it was not possible to determine their cause.
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Projected User Interface - Dungeons & Dragons
Dymáček, Petr ; Kapinus, Michal (referee) ; Najman, Pavel (advisor)
This thesis deals with the using of an interactive table for playing Dungeons & Dragons board game. Application, that was made, is controlled by touch screen and gestures. The gestures are detected from depth data captured by Kinect. The work solves calibrations of input devices and the design of the user interface appropriate for the application.
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Vehicles speed measurement
Schoř, Zdeněk ; Richter, Miloslav (referee) ; Honec, Peter (advisor)
This master’s thesis deals with vehicles speed measurement. The first part is a theoreticalanalysis with an overview of the measurement devices, which are being used nowadays.The second part of the thesis focuses on creating a method for vehicles speed measure-ment in a common traffic situaction. Measurement is based on digital image processingfrom a camera and determining the movement in the image.For movement determination is used license plate detection and other possible methodsare explained in the thesis for future improvement.Created measurement method is using vehicle with known proportions for visual scenecalibration. The MATLAB programming environment is used to detect license plate andfor calibration.Test measurement is conducted in the thesis, which is compared with other referencespeed measurement method.The purpose of the thesis is to use the proposed method to reduce the cost of measuringthe speed of vehicles and contribute to safety and smoothness on the roads.
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Calibration unit for spirometer
Burian, Tomáš ; Máca, Josef (referee) ; Vyroubal, Petr (advisor)
The task of the semester project was to become acquainted with methods of calibrating the spirometer and creating a calibration unit. Calibration unit must be able to calibrate both by volume and by speed. Because of that, the manual calibration of calibration cylinder is provided with a stepper motor mounted to the cylinder piston. The designed PCB will also be controlled by a program to control a stepper motor. The control system will contain 16 different options of selecting the speed of the piston
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Board Games on Interactive Table
Svoboda, Petr ; Najman, Pavel (referee) ; Beran, Vítězslav (advisor)
This thesis focuses on the application of the tangible user interface and spatial augmented reality principals for playing board games. For this purpose, a system called interactive table was developed. It is both hardware and software solution. The hardware part solves the installation of a depth camera and a projector located above the table. The software solution deals with calibration of the depth camera and projector system using known procedures for camera calibration on the one hand, on the other hand it solves tasks from the field of computer vision. This perceptional part is the core of the whole thesis and for the purposes of playing board games it provides information about the location of the physical game object, physical game board and the calculations of mask for masking distracting objects. An educational application was developed for the purposes of demonstration of the system options. The interactive table offers new possibilities for playing board games in a real-world environment by the combination of the augmented reality elements with real-world objects and the related new user experience.
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System of On-/Offline temperature measurement based on Lab View
Stejskal, David ; Hammer, Miloš (referee) ; Prostredník, Daniel (advisor)
The objective of this thesis was to create a LabVIEW-based program for temperature measurement using a personal computer. The program allows reading and post processing of digital signal from a measuring device. This device consists of a sensor type PT100, a measuring transducer and an analog-to-digital converter with USB output. The theoretical part of the thesis deals with resistance temperature sensors, signal analysis and methods for signal processing. The practical part is conceived as a guide to the created program. This part introduces vital sub-elements of the program and describes their principle, practical use and also the operating instructions. As required by thesis assignment, practical part includes verification of the measuring device, which was performed in laboratory of Czech Metrology Institute in Brno.
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Diagnosis of high voltage capacitors for cascade voltage multiplier
Baev, Dmitriy ; Zatloukal, Miroslav (referee) ; Krbal, Michal (advisor)
The main subject of the final thesis is to find a suitable method for measuring the partial discharge (PD) in the dielectric of high-voltage capacitor. In the theoretical part of thesis contains from the mechanisms of origin and the harmful effects of partial discharge at high voltage insulation of capacitor. It describes the global galvanic method of partial discharge measurement, the principle of cascade voltage multiplier, its main components (high-voltage capacitor and diode). Nowadays are presented the possibilities of measuring the quality of capacitors for voltage multipliers. In the experimental part of the diploma thesis is familiar with the diagnostics of high – voltage capacitors by means of laboratory measurements on the electronic bridge and with the help of partial discharge measurement system. It describes the design of a suitable electrode arrangement that eliminates the influence of the corona, which makes it impossible to measure partial discharges and the dissipation factor tg . The thesis analyzes the obtained data from measurements and determines the quality level or the degradation of the measured capacitors. The result of the project should be designed the methodology for finding poor quality capacitors in order to increase the reliability of the voltage multiplier.
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Projected User Interface - Board Game
Vizina, Petr ; Najman, Pavel (referee) ; Zahrádka, Jiří (advisor)
This paper deals with study of possibilities and use of projected user interfaces, which are based on a camera-projector system. The purpose is to create functional application, that using projector to display user interface of application and camera for capturing user interaction with the projected interface. Created application is supposed to be a simulation of board game called "Mill". The result is a functional application of board game, that utilizes tools for calibration of the camera-projector system with physical calibration pattern and hand detection in captured scene.
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Electromagnetic current meters of velocity
Březina, Jiří ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This bachelor thesis explains the issue of electromagnetic current meter of velocity. A survey of all available standards on these devices is carried out. Devices are described technically and metrologically. There are also described the possibilities of usage, operating conditions as well as problems of calibration of these devices. Information on available commercially available devices is provided along with a description of all relevant parameters. One selected device model is put to the test of measurement the velocity on the calibration tank of the laboratory, thus the experiences from real calibration measurement are gained and described.
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The introduction of metrological procedures for determining the eligibility of gauges in tribology
Rozlílková, Lada ; Harčarík, Matej (referee) ; Šrámek, Jan (advisor)
This bachelor thesis deals with metrological procedures in determining the capability of measuring instruments in production in a company operating in the field of precision engineering. The main goal of each business is its competitiveness in the industry and the satisfaction of customer. Therefore in companies is a great deal of emphasis on modernizing and optimizing the production process, logistics, and reducing the enviromental impact. The customer's demands are constantly increasing and that is why the accuracy of the product is emphasized. So it is not only necessary to produce the product correctly and accurately, but also to check its quality, whether it fits within the given tolerances and meets the customer's requirements.
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