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Measurement problem of low AC voltage
Balázs, Ladislav ; Jakubík,, Petr (referee) ; Havlíková, Marie (advisor)
The thesis deals with a problems of measuring small alternating voltage. The aim of the thesis is to explain in general problems of influences on measurement of small alternating voltage and to carry out a concrete measurement according to instructions of CMI. In the next part the thesis deals with the problems of uncertainties for measurement of small AC voltage and a concrete calculation of uncertainties has been made for measurement made in the first part of this thesis.
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Software for Processing of Sound Level Meter Data
Kříž, Petr ; Schimmel, Jiří (referee) ; Kurc, David (advisor)
This thesis deals with the measurement and evaluation of noise. Thesis summarizes the basic concepts of acoustics and describes methods of measurement and evaluation of noise, focusing on measurement uncertainty. Part of this work is the implementation of software for processing of sound level meter data NTi XL2 in Matlab including practical examples of its use.
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Flow Measurement - oriffice plates
Krátká, Lucie ; Málek, Petr (referee) ; Šedivá, Soňa (advisor)
The aim of the Bachelor thesis is to approximate the fluid flow measurement using differential pressure transducers inserted into fully filled circular cross-section conduits running full in the industrial sector. The introduction of the Bachelor thesis describes and explains the principle of fluid flow measurement using differential pressure transducers and the basic types of primary flow elements. Practical part consists of the design of practical calculations of individual parameters of standardized orifice plates, the design of a program for calculation of these parameters, comparing the achieved results with the output from the program Conval, evaluating these results and analyzing the measurement uncertainties for the parameters that affect the design of the standard orifice plate.
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Automation of Noise Measurements Using XL2 Sounl Level Meter
Švihálek, Filip ; Číž, Radim (referee) ; Schimmel, Jiří (advisor)
This bachelor´s thesis focuses on noise measurement, characterizes used quantities and uncertainties due to the measument of these quantities. The goal is to develop application, which will automate measurement with sound level meter XL2. Automation will use text output of the XL2 and modul for Remote Measurement. Application is developed in development environment Visual Basic for Applications.
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Assessment of the Vranov Reservoir Storage Capacity in the Context of the Reservoir Bed Morphology Evolution and Hydrology Characteristic of the River Basin
Jílek, David ; Pavel,, Menšík (referee) ; Marton, Daniel (advisor)
The main function of the reservoir storage volumes is an accumulation of fresh water. Due to the reservoir sedimentation, the impact of climate change, and also unsuitable agricultural land management, a gradual capacity loss in the reservoir storage volumes is happening. The aim of the paper is to provide a storage capacity analysis of the Vranov reservoir. The analysis was made using the historical and updated input data, specifically morphological and hydrological data. The historical-morphological data were taken from the handling regulation guidelines. The upgraded morphological data were in the form of actual reservoir bathymetry measurement from 2021, from which the values of the volume and of the area for reservoir area-volume curves drawing were calculated. Bathymetric measurement was a part of an international project INTERREG AT-CZ "ATCZ28 SEDECO - Sediments, ecosystem services and interrelation with floods and droughts in the AT-CZ border region" as a cooperation between Povodí Moravy, s.p. and BUT FCE. The hydrologic data were provided by Czech Hydrometeorological Institute and have been updated till 2020. It includes an extreme drought event between 2015 and 2018 that significantly affected the results of the analysis. Based on the input data as well as reservoir storage simulation, an analysis of the reservoir storage capacity considering the water evaporation loss was created. The analysis has been made both for the deterministic and statistic solutions. In the statistic solution, a calculation of storage volume involving input data uncertainty was done. The partial results of the analysis were published in the paper Marton and Jílek: Posouzení zásobního objemu nádrže Vranov na aktualizovaná vstupní data. This paper was also a part of the presentation at the international conference Vodní nádrže 2022 in Brno organised by Povodí Moravy, s. p.
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Flow Measurement - oriffice plates
Krátká, Lucie ; Málek, Petr (referee) ; Šedivá, Soňa (advisor)
The aim of the Bachelor thesis is to approximate the fluid flow measurement using differential pressure transducers inserted into fully filled circular cross-section conduits running full in the industrial sector. The introduction of the Bachelor thesis describes and explains the principle of fluid flow measurement using differential pressure transducers and the basic types of primary flow elements. Practical part consists of the design of practical calculations of individual parameters of standardized orifice plates, the design of a program for calculation of these parameters, comparing the achieved results with the output from the program Conval, evaluating these results and analyzing the measurement uncertainties for the parameters that affect the design of the standard orifice plate.
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