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Development of wireless rumen probe
Šídlová, Ludmila ; Matěj, Zdeněk (referee) ; Fedra, Zbyněk (advisor)
The aim was to study the possibilities of wireless transmission from the stomach of ruminants and to design and implement wireless ruminal probe. The first part deals with the internal wireless probe. The next section describes and evaluates available ruminal probe. There is given its own equipment design in the other chapters. The probe was designed for power management and for working with harvestable ambient power. The frequency of 125 kHz with bipolar coding was chosen for wireless data transmission. Two air coils are used on both sides as antennas. The proposed probe was designed and wireless data transmission was tested.
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Tunable loop antenna for ham radio
Šmerda, Jaroslav ; Šrámek, Petr (referee) ; Lukeš, Zbyněk (advisor)
This bachelor thesis is focused on the design and construction of loop antenna that can tune the stepper motor using capacitors. The antenna is designed for short waves used by radio amateurs. My task is to establish an antenna tuning using 4-position stepper motor controlled by a microprocessor, which will set the stepper motor to the positions that will change the capacity of capacitors needed to tune the antenna for the frequency band.
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Tunable loop antenna for ham radio
Šmerda, Jaroslav ; Šrámek, Petr (referee) ; Lukeš, Zbyněk (advisor)
This bachelor thesis is focused on the design and construction of loop antenna that can tune the stepper motor using capacitors. The antenna is designed for short waves used by radio amateurs. My task is to establish an antenna tuning using 4-position stepper motor controlled by a microprocessor, which will set the stepper motor to the positions that will change the capacity of capacitors needed to tune the antenna for the frequency band.
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Development of wireless rumen probe
Šídlová, Ludmila ; Matěj, Zdeněk (referee) ; Fedra, Zbyněk (advisor)
The aim was to study the possibilities of wireless transmission from the stomach of ruminants and to design and implement wireless ruminal probe. The first part deals with the internal wireless probe. The next section describes and evaluates available ruminal probe. There is given its own equipment design in the other chapters. The probe was designed for power management and for working with harvestable ambient power. The frequency of 125 kHz with bipolar coding was chosen for wireless data transmission. Two air coils are used on both sides as antennas. The proposed probe was designed and wireless data transmission was tested.
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