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The design of rf impedance meter
Wiesner, Jiří ; Hrabina, Jan (referee) ; Roubal, Zdeněk (advisor)
The first part deals with the basic methods for measuring an unknown impedance. After determining the parameters of the desired impedance analyzer method was chosen AC unbalanced Wheatstone bridge. As a source of harmonic signal has been selected direct digital synthesis circuit and measure provides the analog vector voltmeter. Subsequently, it is discussed the issue of determining the sign of the unknown phase impedance. The thesis describes the wiring of circuit AD8302 and circuit AD9958 direct digital synthesis for which it is also an example of the code. It discusses the design and simulation of a reconstruction filter. Finally there are the measured output voltage and spectrum synthesizer.
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Signal generator controlled by AVR
Wiesner, Jiří ; Steinbauer, Miloslav (referee) ; Roubal, Zdeněk (advisor)
The aim of this thesis was to design a universal function generator, which would find use for magnetizing and demagnetizing job, or for measuring hysteresis. The heart of the control module is an 8-bit microcontroller from Atmel, they are connected to the input/output peripherals, not least optocouplers for relay. Microcontroller communicates with the other module mounted DA converters using the SPI lines. At the exit so they can rise to any signals programmed into the MCU.
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Signal generator controlled by AVR
Wiesner, Jiří ; Steinbauer, Miloslav (referee) ; Roubal, Zdeněk (advisor)
The aim of this thesis was to design a universal function generator, which would find use for magnetizing and demagnetizing job, or for measuring hysteresis. The heart of the control module is an 8-bit microcontroller from Atmel, they are connected to the input/output peripherals, not least optocouplers for relay. Microcontroller communicates with the other module mounted DA converters using the SPI lines. At the exit so they can rise to any signals programmed into the MCU.
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The design of rf impedance meter
Wiesner, Jiří ; Hrabina, Jan (referee) ; Roubal, Zdeněk (advisor)
The first part deals with the basic methods for measuring an unknown impedance. After determining the parameters of the desired impedance analyzer method was chosen AC unbalanced Wheatstone bridge. As a source of harmonic signal has been selected direct digital synthesis circuit and measure provides the analog vector voltmeter. Subsequently, it is discussed the issue of determining the sign of the unknown phase impedance. The thesis describes the wiring of circuit AD8302 and circuit AD9958 direct digital synthesis for which it is also an example of the code. It discusses the design and simulation of a reconstruction filter. Finally there are the measured output voltage and spectrum synthesizer.
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Valuation of the company Krakonoš spol. s r.o.
Wiesner, Jiří ; Krabec, Tomáš (advisor) ; Šnajberg, Oxana (referee)
The aim of this thesis is valuation of the brewery Krakonoš spol. s r.o. to the 31st December 2014. The thesis consists of four parts. First part is devoted to the theoretical introduction to the business valuation and performance of the Krakonoš spol. s r.o. Next parts focuse on financial, strategic analysis, financial plan, including generators of value, and business valuation of the Krakonoš spol. s r.o. As the main valuation method was used DCF Equity, like one of the yield methods
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