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The Precise Measurement of Magnetic Azimuth
Junasová, Veronika ; Levek, Vladimír ; Šteffan, Pavel
This article deals with measuring magnetic azimuthusing inertial sensors. It introduces the steps in this process andobstacles that need to be solved in order to achieve more preciseresults. The magnetic azimuth can be determined using onemagnetometer; however, the precision in such measurement islimited. Therefore, this article also introduces measurement ofrelative azimuth acquired by the gyroscope. The essential part ofprecise measurement is the calibration of the mentioned inertialsensors, which is described in detail. The process of calibration issupported with equations, graphs, and tables. The measurementitself consists of an output from the magnetometer. The relativeazimuth acquired from the gyroscope is then combined using acomplementary digital filter with magnetic azimuth from moreaccurate magnetometer. The final results show the improvementobtained with the presented method. The article also containsinformation on a compact device designed for simple calibrationand measurement with the mentioned sensors.
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Calibration and evaluation of data from strain gauges
Dubina, Jozef ; Jaššo, Kamil (referee) ; Vyroubal, Petr (advisor)
This bachelor's thesis describes calibration and evalution of data measured from tensometric sensors. The labour describes tensometers in general, their functions, aplications and principle of operation. Loading data from tensometric sensors is next part of this labour, where are informations how to convert analog signal to digital signal output, which is ready for processing and shows real values. After the signal is converted to digital, it is needed to calibrate tensometers to reach high precission values of weight according to reference load. Bachelor's thesis describes choices of electronic and mechanical components used for developing of digital scale. Software developing for this electronic device is described in next part of this thesis.
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Mobile Signal Generator for ECU Calibration
Pauliuchenka, Aliaksandr ; Kučera, Pavel (referee) ; Svída, David (advisor)
The subject of this thesis is a mobile electrical signal generator for the calibration of an Electronic Control Unit (ECU). The thesis primarily offers an analysis of the electrical signals that enter the control unit. It then describes the process of developing the Printed Circuit Board (PCB) used in the generator, the C++ programs for the microcontrollers used, and the software for controlling and programming the test scenarios. Finally, the thesis concludes by measuring the output signals of the generator with an oscilloscope and testing the connection to an open ECU. Based on these tests, the functionality of the generator was evaluated.
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Assessment of pressure conditions in the water supply network of the municipality of Ústí
Kuchař, Jakub ; Rajnochová, Markéta (referee) ; Ručka, Jan (advisor)
The bachelor's thesis is devoted to the hydraulic analysis of the water supply network of the municipalities of Ústí, Skalička and the settlement of Kamenec. The village is located in the Přerov district. The first chapter describes the theory of mathematical modeling and the basic relationships for calculation in pressure pipe systems. A quasi-dynamic hydraulic model of the entire area was created from the measured pressure values of the water supply network. The assessed values were displayed in the EPANET 2.2 simulation program. With regard to the character of the development in the municipalities, the pressure conditions in the area were assessed using the result. The last part of the work is dedicated to proposing measures to optimize pressure conditions and the resulting impact on the territory.
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Býčí skála cave documentation - part Mořské oko
Ulčík, Vojtěch ; Machotka, Radovan (referee) ; Kratochvíl, Radim (advisor)
The bachelor thesis deals with documentation of the part of cave system Býčí skála, namely of the passages Kaňony and Mořské oko in the form of a ground plan, extended longitudinal section and cross sections in the scale of 1:250. The work contains a description of the location where the work took place. It also deals with the process of creating, specifically reconnaissance, measuring the creating a surveying network, detailed mapping and producing the resulting map in the JTSK coordinate system and the Bpv vertical system. A speleological measurement method using the Disto X2 instrument and producing a measurement sketch on a tablet in the Topodroid program were used for the measurement.
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Camera testing
Frigyik, Tomáš ; Kratochvíla, Lukáš (referee) ; Richter, Miloslav (advisor)
This bachelor's thesis deals with the issue of capturing raster images using cameras and the current state of this issue, the appropriate setting of camera parameters that include external and internal parameters, the design of a measuring set for testing these parameters, while using the designed patterns generated on the monitor. This work also deals with the design of suitable models for setting parameters, the method of their generation and processing. The next part of this work shows a set of images and their processing, evaluation of the properties of the proposed processing procedure and determination of applicability of patterns.
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Laboratory task - system for measurement of optical fibre attenuation by direct method
Jančová, Silvie ; Horváth, Tomáš (referee) ; Dejdar, Petr (advisor)
The bachelor's thesis deals with the issue of attenuation in optical fibers and subsequent measurement using the transmission method. The theoretical analysis deals with the optical fibers themselves and their transmission properties with an emphasis on dispersion and standards. The original idea of the practical part was the implementation with a photodetector. Due to the small power of the photodetector, the practical part focuses on the demonstration of attenuation measurement using measuring devices that are commonly used in practice. In the laboratories, optical fibers with a length of several tens of kilometers are used for demonstration. The laboratory task will help students to master the basic units of attenuation and gain an understanding of measurement in practice.
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3D-printed calibration phantoms for imaging systems
Fasura, Dominik ; Harabiš, Vratislav (referee) ; Dostál, Marek (advisor)
This bachelor thesis deals with the production of calibration phantoms for imaging systems using 3D printing. It presents the calibration methods according to the recommendations of the state Office for Nuclear Safety (SÚJB) and the calibration phantoms used at the Brno University Hospital. Furthermore, the basic theory of 3D printing, the technologies used, modification of the model in the slicer, setting parameters for subsequent printing. Calibration phantoms are modelled in Fusion 360 and then printed on Original Prusa i3 MK3S+ printer with MMU2S upgrade. Subsequently, the calibration phantoms are tested on computed tomography. The results are compared with the available phantoms at the department.
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Kalibrace vertikálního délkoměru Mahr Precimar DGV 100
PEKÁREK, Ondřej
The aim of this work is commissioning and revitalization of Mahr Precimar DGV 100 device. It is used to calculate length measurement in vertical direction (range: 0-101,6mm, resolution 10-4 mm) and for the calibration of dial indicators. It also enables other types of measurement e.g. pressure force. The device hasn't been used for many years, and noone can currently work with it in the measuring laboratory. The aim of this work is a complete revitalization of this long term unused device, its calibration, execution of a test measurement and repeated integration into the measuring procedures.
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Charakterizace reaktivního plazmatu s využitím vysokofrekvenční sondy
POSPÍCHAL, Aleš
The bachelor thesis was focused on the proces of construction, calibration and testing of measuring gadget, which might be used in Laboratory of plasma physics at Faculty of Science. This device was consisting of high frequency voltage and current sensor based on a capacitive sensor and Rogowski coil respectively. Results from all steps of making and usage of measuring gadget are submitted in this thesis
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