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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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Indikator position behind the wall
Pecha, Václav ; Marcoň, Petr (referee) ; Szabó, Zoltán (advisor)
The work sums up the basic measurement principles for different kinds of searching devises. It deals with measurement using resonance. The feature of resonance and measurement techniques are described to set the location of the radiating circuite. The work contains the design of a locator of position behind a wall itself as well as the concrete switch connection, schema and description of receiver and emitter in the circuit.
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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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Laboratory power source
Havlíček, Lukáš ; Drexler, Petr (referee) ; Szabó, Zoltán (advisor)
he goal of this semestral work is to design a switch-mode power supply with the following requirements. The input voltage is determined as constant 230 V AC, whereas output voltage should be infinitely adjustable in range of 0 V – 30 V DC. The maximum output current loading is 3 A. The output voltage and output current are controlled by means of a microprocessor.
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Wireless transmission sensors non-electrical quantities to iontmeter
Kadlček, Václav ; Szabó, Zoltán (referee) ; Roubal, Zdeněk (advisor)
Theme of this bachelor thesis is construction a meteorological station with wireless data transfer to ionteter. At first, meteorological phenomenons which most influence the concentration of atmospherical ionts are described and than suitable sensors are picked. When selecting the sensors, the greatest demands are placed on high accuracy and low power consumption of weather station. After testing of these parts the final weather station is build.
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Smart Plug
Šebesta, Ondřej ; Szabó, Zoltán (referee) ; Marcoň, Petr (advisor)
The bachelor thesis discusses the design of a smart plug. The theoretical part focuses on the individual parts and functions of smart plugs, and their functional possibilities are analysed together with the related fabrication perspectives. The practical portion concentrates on the selection of appropriate components and proposes a complete design of the hardware and software of a smart plug, including a web server for its control. The practical portion also describes a calibration of a measuring part and compares measured values with values from another measuring device.
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Arterial Puncture Simulator
Martincová, Kateřina ; Szabó, Zoltán (referee) ; Friedl, Martin (advisor)
The topic of this smestral thesis is to design arterial puncture simulator, which could be used as a device for teaching first aid. At first there are presented and described simulators available on the market. Followed by the analysis of individual components that were selected for the construction of the simulator. The control unit, which switches the bistable valve is realized by Arduino. Liquid jetting is facilitated by expansion container. The result of this thesis is design and testing of components of prototype arterial puncture simulator.
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Metal detector for industrial use
Stehno, Rostislav ; Hrabina, Jan (referee) ; Szabó, Zoltán (advisor)
The goal of this project is explore and study the ways of metal detecting and create a metal detector for industrial use. When the device were inventing, a lot of methods were studied and the impulse detect method were chosen as the most perspective way of metal detecting, thanks to a huge electronics parts possibilities. After experiences with preceding device was necessary to redesign it. Main target of this thesis is to increase the computing power of detector. For this purpose will device need a new microcontroller. Device will communicate with PC trough a USB port. The device will have a battery which allows device to run for a few hours. Processing of measured data will be make even with DFT which will lead to better analyze of mass and type of conductor under device.
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Smart metering
Lahodný, Libor ; Hrabina, Jan (referee) ; Szabó, Zoltán (advisor)
Semester paper describes the design of smart sockets and their management. Sockets are wirelessly controlled by a central unit. The socket has an integrated sensor, designed to measure current consumption of the device. If necessary, it can remotely disconnect the unit plugged in socket from AC network. Work includes analysis of individual system elements, design of electrical schematics and PCB. In the construction is included ethernet module, which is used to display data using a computer.. The device has been constructed and tested.
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Mikroprocesor control for laboratory power source
Hauer, Petr ; Kubásek, Radek (referee) ; Szabó, Zoltán (advisor)
This bachelor thesis aims to design and implementation a laboratory power supply controlled by microprocessor and PC via USB. The theoretical part describes the USB bus and the manner of its implementation to the microprocessor. There are the basic types of switching and linear sources and methods of control by a microprocessor. The practical part deals with the design and implementation of the resource. The results of this work are the themes of control and power part of power supply, printed circuit boards, software for the PC and microprocessor and measurements on the completed source.
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