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Incubator with adjustable temperature and humidity
Hikaník, Matúš ; Král, Bohumil (oponent) ; Steinbauer, Miloslav (vedoucí práce)
This project deals with comparing types and properties of commercial produced incubators for exotic birds. It searches the best solution from these area. In this project are compars individual components and their choice for realization in this project. Then in this project is solution of regulation temperature and humidity in engineered mechanism and discovered parameters of specifically space. Then is developed solution of thermostat and hydrosatat for this prototype. Temperature is changed by Peltier module, who is involved in correct system. Humidity is regulated by resistor humidifier. Complex system is managed by microcontroler. System communicates with PC via USB interface and Ethernet. Solution of this project is maked functional prototyp.
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Audio active crossover for subwoofer and two satellites
Hikaník, Matúš ; Petržela, Jiří (oponent) ; Kratochvíl, Tomáš (vedoucí práce)
This work deals with design, simulation and construction of low frequency active crossover for subwoofer and two satellites. The gauging fixture contains functions to set crossover frequency, turn the phase of subwoofer channel and to set gain for all five outputs range from -20dB to +20dB. In this device are used Butterworth filters of third order with slope 18dB/oct. This device is cascade three way crossover with adjustable first crossover frequency range from 20Hz to 200Hz. The setting of frequency is realize with logarithmic potentiometers. The second crossover frequency has constant value equals to 1970Hz. In this circuit are used low-noise operational amplifiers NE5532N. As regulators of gain are used potentiometers. The phase invertor used principle of changing connection of operational amplifier from inverting to non-inverting. The result of this work is laboratory gauging fixture. This device has built-in I/O BNC connectors and cinch connectors gennerally used in audio technique.
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Audio active crossover for subwoofer and two satellites
Hikaník, Matúš ; Petržela, Jiří (oponent) ; Kratochvíl, Tomáš (vedoucí práce)
This work deals with design, simulation and construction of low frequency active crossover for subwoofer and two satellites. The gauging fixture contains functions to set crossover frequency, turn the phase of subwoofer channel and to set gain for all five outputs range from -20dB to +20dB. In this device are used Butterworth filters of third order with slope 18dB/oct. This device is cascade three way crossover with adjustable first crossover frequency range from 20Hz to 200Hz. The setting of frequency is realize with logarithmic potentiometers. The second crossover frequency has constant value equals to 1970Hz. In this circuit are used low-noise operational amplifiers NE5532N. As regulators of gain are used potentiometers. The phase invertor used principle of changing connection of operational amplifier from inverting to non-inverting. The result of this work is laboratory gauging fixture. This device has built-in I/O BNC connectors and cinch connectors gennerally used in audio technique.
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Incubator with adjustable temperature and humidity
Hikaník, Matúš ; Král, Bohumil (oponent) ; Steinbauer, Miloslav (vedoucí práce)
This project deals with comparing types and properties of commercial produced incubators for exotic birds. It searches the best solution from these area. In this project are compars individual components and their choice for realization in this project. Then in this project is solution of regulation temperature and humidity in engineered mechanism and discovered parameters of specifically space. Then is developed solution of thermostat and hydrosatat for this prototype. Temperature is changed by Peltier module, who is involved in correct system. Humidity is regulated by resistor humidifier. Complex system is managed by microcontroler. System communicates with PC via USB interface and Ethernet. Solution of this project is maked functional prototyp.
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