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RF power meter
Hlaváč, Štěpán ; Jedlička,, Petr (referee) ; Drexler, Petr (advisor)
This master’s thesis describes various principles of measurement of electromagnetic waves in a free space and on a line. Used sensors and their real parameters are given for every method. The analysis of protections of high-frequency inputs of measuring instruments is done here and the most suitable method and protections of input for realization are chosen. The analysis of design of secondary protection of high-frequency input is done in this project. The protection of input is realized and measured. The suitable method of measurement is chosen as well as the sensor for measurement of power. The block diagram and circuit diagram of the meter of power are designed. According to designed conception the measuring instrument for measurement of power is realized and its single qualities are measured during the realization. In the final part its precision is measured and the evaluation of results is done.
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Inteligent charger
Ulver, Martin ; Horský, Pavel (referee) ; Kolka, Zdeněk (advisor)
Bachelor's thesis deals with intelligent battery charging, which make for their regeneration and near one type for elimination memory effect. They are here described characteristics loading and design conception switching charger controlled CPU unit. Next be described to loading, or battery discharging and suggested analog load controlled by same CPU unit. CPU unit according to selected parameters and measured value decide about charging or discharging and control him. Parameters are displaying on LCD and entering on product by buttons.
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Inteligent charger
Ulver, Martin ; Horský, Pavel (referee) ; Kolka, Zdeněk (advisor)
Bachelor's thesis deals with intelligent battery charging, which make for their regeneration and near one type for elimination memory effect. They are here described characteristics loading and design conception switching charger controlled CPU unit. Next be described to loading, or battery discharging and suggested analog load controlled by same CPU unit. CPU unit according to selected parameters and measured value decide about charging or discharging and control him. Parameters are displaying on LCD and entering on product by buttons.
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RF power meter
Hlaváč, Štěpán ; Jedlička,, Petr (referee) ; Drexler, Petr (advisor)
This master’s thesis describes various principles of measurement of electromagnetic waves in a free space and on a line. Used sensors and their real parameters are given for every method. The analysis of protections of high-frequency inputs of measuring instruments is done here and the most suitable method and protections of input for realization are chosen. The analysis of design of secondary protection of high-frequency input is done in this project. The protection of input is realized and measured. The suitable method of measurement is chosen as well as the sensor for measurement of power. The block diagram and circuit diagram of the meter of power are designed. According to designed conception the measuring instrument for measurement of power is realized and its single qualities are measured during the realization. In the final part its precision is measured and the evaluation of results is done.
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