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Analog front-end for piezoelectric sensor
Wich, Petr ; Chalupa, Jan (referee) ; Rubeš, Ondřej (advisor)
The purpose of the thesis was to describe and compare the properties of analog front end for piezoelectric sensor circuits. First, the basic circuit was described, then the design and implementation of the current-to-voltage converter, the charge amplifier and the circuit for voltage sensors on the parallel resistor. There was construct measuring system for measurement of the circuits. At last was made measurement of the created circuits, results were compared with each other, and their properties described.
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The effect of sampling period error on frequency analysis
Pietrowicz, Daniel ; Marada, Tomáš (referee) ; Zuth, Daniel (advisor)
This thesis will be focused on signal measurement in connection with digitization and analysis inaccuracy of sampling peroid effect. Brief narration of frequency analysis and description of Matlab and his capabilities with this issue. Then creation procedure for simulation model of analog signal and his fault digitization via sampling period. Systematic comparation of this effect on inaccuracy of sampling period on frequency analysis.
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Digital conversion of analog signals
Čermák, Petr ; Sedláček, Jiří (referee) ; Murina, Milan (advisor)
My work is focused on digital elaboration of the analog signal. In my work the analysis has been carried out in all parts of digit chains processing analog signal. The entranced variable is signal from measuring coil, which is afterwards strengthen and transfer to a sampler. The sample signal is processed by an A/D converter and then sends to a parallel port. On the basis of acquired data the scheme has been constructed for sample processing. The transfer to the parallel port is done (made) in two steps, at first one part of the word is transferred and then the rest of the word follows. Between the converter and sampler is tight relationship and synchronization. Both of them are managed from one central bus.
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Wind tunnel model with universal inputs and outputs
Holčík, Martin ; Kaczmarczyk, Václav (referee) ; Štohl, Radek (advisor)
The aim of this work is to design and implement a model of wind tunnel. The model can be controlled in various ranges of standardized signals in both analog and digital form. The model consists two fans - an electrically driven fan and fan driven by air stream. The outputs from the model are standardized signals, carrying information about the speed of second fan. The following document discusses the design of components, and subsequent implementation of the technical problems that occurred, a description of the final solution and the software part of the solution.
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Digital conversion of analog signals
Čermák, Petr ; Sedláček, Jiří (referee) ; Murina, Milan (advisor)
My work is focused on digital elaboration of the analog signal. In my work the analysis has been carried out in all parts of digit chains processing analog signal. The entranced variable is signal from measuring coil, which is afterwards strengthen and transfer to a sampler. The sample signal is processed by an A/D converter and then sends to a parallel port. On the basis of acquired data the scheme has been constructed for sample processing. The transfer to the parallel port is done (made) in two steps, at first one part of the word is transferred and then the rest of the word follows. Between the converter and sampler is tight relationship and synchronization. Both of them are managed from one central bus.
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Deisign of the simple MIDI network
Lečbych, Jakub ; Krček, Petr (referee) ; Roupec, Jan (advisor)
The goal of this bachelor thesis is to compare advantages and disadvantages digital sound processing. Thesis is engaged in signal generating, editating, recording and mastering. It regards on the problem from the point of view of the sound designer, not like an artist. It also contains review of world-wide companies products. The aim of my bachelor thesis is to design a simple MIDI net, where audiosignal is generated and edited digitally, although output sound have characteristic warm abilities of analog synthetizer.
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