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Ultrasound Analyzer
Mička, Marek ; Hanák, Pavel (referee) ; Kubánek, David (advisor)
This thesis is about designing a device which is capable of recording ultrasound and changing its frequency to be listenable by human ear. The created device is simple, portable and capable of recording ultrasound up to 80 kHz. The first important part of this thesis is choosing a proper microphone. It’s followed by the processing of the signal. Such processing involves amplifying and filtering. The last part is heterodyning. It allows us to decrease the frequency of recorded signal to make it listenable, which is the purpose of the device designed in this thesis. I will build this device in following bachelor thesis and test its functionality. We can buy devices with similar functionality, but most of are based on different principle. The biggest advantage of this principle is its simplicity.
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New requirements of photovoltaic system for family houses
Mička, Marek ; Valenta, Jiří (referee) ; Dostál, Lukáš (advisor)
The bachelor's thesis deals with the requirements for a photovoltaic system in a family house. Its aim is to summarize all important information when selecting a photovoltaic system. The first part of the semester project summarizes all used topologies of photovoltaic systems in family houses. The second part is devoted to the conditions for safe operation, which include normative requirements, design of lightning protection and connection to the distribution system. And the last third part deals with the process of enabling the parallel connection of the PV power plant to the distribution grid, development of project documentation and installation of PV technology.
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Ultrasound Analyzer
Mička, Marek ; Hanák, Pavel (referee) ; Kubánek, David (advisor)
This thesis is about designing a device which is capable of recording ultrasound and changing its frequency to be listenable by human ear. The created device is simple, portable and capable of recording ultrasound up to 80 kHz. The first important part of this thesis is choosing a proper microphone. It’s followed by the processing of the signal. Such processing involves amplifying and filtering. The last part is heterodyning. It allows us to decrease the frequency of recorded signal to make it listenable, which is the purpose of the device designed in this thesis. I will build this device in following bachelor thesis and test its functionality. We can buy devices with similar functionality, but most of are based on different principle. The biggest advantage of this principle is its simplicity.
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