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Measurement of magnetic quantities - estimation of the uncertainty
Šlichta, Pavol ; Šedivá, Soňa (referee) ; Havlíková, Marie (advisor)
This Master’s thesis contains an overview of determining measurement uncertainties of direct and indirect measurements. It describes a way of creating a magnetic field with the help of Helmholtz coil and a more detailed description of some principles of magnetic field sensors. This thesis also contains a description of the experiments and the factors influencing them. The last part deals with the quantification of uncertainties from measured experiments and with the discussion of the results from these measurements.
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Calibration management of gauge
Šmétka, Miroslav ; Doňarová, Jana (referee) ; Koška, Petr (advisor)
This thesis solves procedures of the management of the calibration laboratory to prove agreement of calibration results in specified types of gauges. These are gauge blocks (Johansson gauge), vernier height gauge, deformation manometer pressure and torque spanner. Furthermore designs documentation in accord with metrological confirmation. These are mainly calibration procedures of these gauges and procedures of definition measurement uncertainly and interpretation of results. Completed procedures of calibration are processed as attachment to this thesis with graphic design like as in experimental technician institute of ground forces.
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Capability of body measurement on an in-line 3D measuring device
Čada, Michal ; Jankových, Róbert (referee) ; Šrámek, Jan (advisor)
By developing optical measurement technologies of shapes and elements, it is now possible to measure the carbody directly in the production flow of the welding company's line for the production of cars, the so-called „In-line measurement“. When deploying this control process, you also need to process the amount of data measured using the standard described procedure for process control. The thesis presents a proposal for the introduction and control of the dimensional inspection process of the final product of the welded body.
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Accuracy of measurement on workshop microscope
Pernikář, Václav ; Jarošová, Jana (referee) ; Bumbálek, Leoš (advisor)
This thesis deals with the performance of the measurement accuracy in the optical measuring systems. The first part describes basic principles of metrology and the guidelines of the expression of uncertainty and the factors which influence measurement result. The second part classifies optical measuring systems and describes some measuring principles of them. The final part compares two optical gauges and the evaluation of some of their characteristics through the use of very simple experiments.
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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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Special length sensors
Pavliš, Jakub ; Prostredník, Daniel (referee) ; Jankových, Róbert (advisor)
This bachelor thesis contains a theoretical description of selected length sensors with emphasis on inductive and optical sensors. The main benefit of this thesis is the design and realization of a special inductive sensor with a small pressure force and an optical sensor with a resolution of 2.5 nanometers. In the thesis are analyzed the selected metrological properties of the designed sensors and the formulation of recommendations for their practical use.
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Uncertainties in interferometric measurements
Kočí, Radek ; Šedivá, Soňa (referee) ; Havlíková, Marie (advisor)
This diploma thesis deals with uncertainties of interferometric measurements and methods for their evaluation. In the theoretical part of the thesis, are described interferometers and interferometric measurement techniques. Furthermore, there is presented process of determining the measurement uncertainty using methods GUM and Monte Carlo. In the practical part of the thesis, there are these two methods are used for qualification of measurement uncertainty calculated for the specific interferometer.
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