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Level indikator with wireless communication
Smatana, Tomáš ; Friedl, Martin (referee) ; Szabó, Zoltán (advisor)
This thesis describes the design and realization of a device that is used for wireless measurement and control of liquid level. The first section explains the different options for level measurement, different implementation of wireless communication and describes the basic features of the Atmel AVR microcontrollers. Based on this analysis, appropriate solutions are selected sensors and wireless modules suitable for the design of the device. The second part is the design of a device which is subsequently implemented.
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Atmospheric correction unit for the laser interferometer
Kučera, Stanislav ; Drexler, Petr (referee) ; Szabó, Zoltán (advisor)
This work deals with design, realization and testing the device for suppression the effect of the fluctuation of the atmospheric conditions on the laser interferometer measurement. Parasitic and randomly changes of atmospheric conditions – temperature, pressure, relative humidity and chemical composition of the air changes his refractive index, then wavelength of the laser light in this environment. Physical properties of air are measured by ultraprecision sensors. The actual wavelength is periodically calculated from Edlén formula. The device is processing the quadrature output signals from receiver of the homodyne interferometer include the atmospheric correction in real time. The device is equipped with interface to data acquisition into the personal computer.
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The suppresion of mechanical stress impacts in fiber optic transmission systems
Pavlů, Michal ; Szabó, Zoltán (referee) ; Drexler, Petr (advisor)
This bachelors project deals with the suppresion of mechanical stress impacts in fiber optic transmission systems. Factors that have major influence on the polarization state distortion in optical fiber are discussed. It has been propřed the utilization of orthoconjugate retroreflector (OKR) for the compensation of polarization state degeneration. The theoretical analysis of this method is performed. The OKR method has been experimentally verified in the fiber optic current sensor. On the basis of results which were obtained by experimental verification the experimental results show evidence konvenience of the designed method.
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GPS tracker with GSM communication using SMS protokol
Remeš, Adam ; Drexler, Petr (referee) ; Szabó, Zoltán (advisor)
The objective of this semestal thesis is the design and implement moduls device for GPS location and temperature with GSM transmission, which is used to determine the position of the object at the request of users using SMS messages. It is designed for watch vehicle and foremost locations already stolen vehicle. Part of this work is the design of the main module GPS location, source module and a module lcd for displaying the data.
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Voltage regulator module for graphic card repair
Kožuch, Matúš ; Steinbauer, Miloslav (referee) ; Szabó, Zoltán (advisor)
The topic of this thesis is the design and implementation of multi-phase switching power supply of low voltage and high current which will be used for graphics card repair. Specifications of the power supply feature a minimal output current of 150A, an output voltage ranging from 0,9 up to 1,5V that is adjustable using PWM VID or set to a constant level and fully passive cooling. The thesis also covers the methods used for overcurrent and overvoltage protection followed by the basic topologies of dc-dc converters, their design and component selection. The designed external regulator is equipped with eight phase integrated controller, which senses the output voltage and current of each phase and balances them, while also providing an overcurrent and short circuit protection.
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Flight path planning for drone swarms
Procházka, Martin ; Szabó, Zoltán (referee) ; Janoušek, Jiří (advisor)
This bachelor's thesis addresses the issue of planning flight paths for drone swarms with specified safety constrains and with the emphasis on the feasibility of real-world usage. Along with the design of the planning algorithm itself, this thesis also implements an add-on for the 3D environment Blender, which can be used to design a flight mission, verify safety constrains and export the mission itself.
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Logging station for humid environments
Pavlík, Jan ; Roubal, Zdeněk (referee) ; Szabó, Zoltán (advisor)
This thesis is about the design of a meteorological station deployed in a wet environment and its construction. The station will be used for measuring meteorological instrumentation in caves, because of that the station was designed to minimize its power consumption. Firmware was designed, to allow remote control of the station. A major part of the thesis is concerned with selection and description of the sensors and components used. Near the end of the thesis the control algorithm, communication interface and construction of the device is described.
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New electronics for laser harp
Takács, Peter ; Kříž, Tomáš (referee) ; Szabó, Zoltán (advisor)
The aim of this thesis is to describe in detail the design of the electronics of a laser harp. This thesis does research on the history of digital musical instruments designed since the very beginning of electronic music. Furthermore, this paper debates over the advantages and disadvantages of the laser harp designs. This thesis lists the most common types of sound synthesis and includes the design of a power amplifier circuit. It writes about the output types this digital device has. The design of the power supply circuit and other necessary circuits, such as voltage converters, which are responsible for providing the correct voltages for all the various circuits and devices are also thoroughly detailed. The paper reviews the advantages and disadvantages of several optical sensors with different characteristics. This thesis also describes the steps of designing a High-Pass filter to filter out the unwanted ambient light. This documentation also describes a simple mist generator system, which distributes water vapor into the air. Moreover, it also describes the role of the microcontroller in this circuit and how it controls the individual elements. The thesis describes how to operate the device.
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Design of a new ion counter for the nature environment
Roubal, Šimon ; Szabó, Zoltán (referee) ; Roubal, Zdeněk (advisor)
Subject of this bachelors thesis is an realization of new control board for iontmeter that is developed at UTEE. Iontmeter must be capable of fully autonomous measure in outside contitions. That means it has to be able to run on batery for a long time and has to be to resist outside weather conditions. Measured data will be saved on an SD card and also sent using GSM network to the IoT server.
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Laboratory electronic load 400 W
Horna, Aleš ; Szabó, Zoltán (referee) ; Steinbauer, Miloslav (advisor)
This thesis deals with the construction of a laboratory electronic load purpose of which is to test various sources of electric energy, for instance electronic power supplies or accumulators. The thesis states possible designs of electronic circuits forming such an electronic load, it mentions factory manufactured devices, it describes the way of designing parts of the device, choice of components, conduction of circuit simulations for function verification of designed circuits and mechanical construction.
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