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Device for demonstration of line coding
Navrátil, Marek ; Šilhavý, Pavel (referee) ; Číž, Radim (advisor)
This thesis aims proposal and implementation of laboratory equipment for generating Line codes. The theoretical part describes digital transmission of information and the individual Line codes. The practical part deals with the design and subsequent implementation of the entire device. The results of this works are the theme of device an apparatus for printed circuit boards, software for microcontroller measurement and results.
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Adaptive frequency filter
Kříž, Petr ; Hájek, Karel (referee) ; Sedláček, Jiří (advisor)
The aim of this work is to design a filter of the type low–pass of order 5th with Butterworth’s approximation in the range of over-tuning 10 – 100 kHz and if it will be possible so! achieve even higher marginal frequencies. To compare two typical representatives of the frequency filters cascading and non-cascading synthesis from the viewpoint the accuracy of an! approximation function, sensitivity to the tolerance values of components, number of the components (mainly OZ) and viability, especially the possibility of electronic over-tuning in selected frequency range. On the basis of these conditions will be chosen one design, which will be realized later. Further it will be necessary to consider the possibilities of electronic over-tuning and to choose for this over-tuning suitable component, to design user management changes of marginal frequency fm by the help of keyboard + LCD and control application on the PC. For this hardware will be programmed appropriate control software. At the end of this work will be constructed appropriate device, which fullfils requirements written above and will be subjected to the laboratory measurements that verify function of this device. The constructional details of the filter are presented in the enclosure at the end of this work. At the CD are available all materials, which were created during the master’s thesis or which are necessarily concerned.
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Monitoring and regulation of water reservoir
Malý, Michal ; Fedra, Zbyněk (referee) ; Frýza, Tomáš (advisor)
This work is sight on production automatic machine for temperature adjustment and highs water level in reservoir. Automatic machine watch air temperature, water temperature in reservoir and temperatures on solar panel. Further watch water mark in reservoir by the help of rustless probe. By the help of this way adventitious data governs circulatory pump and solenoid valve for suffer waters. Work includes full technical documentation including PCB.
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Shape generator
Španihel, Pavol ; Valach, Soběslav (referee) ; Macho, Tomáš (advisor)
The aim of this work is design of function generator with MAX 038. The generator is able to generate square, sawtooth and sinus waveform in the frequency range from 10 Hz to 4 MHz. You can change duty (15 % to 85 %), variable setting of the output amplitude (up to 10 VP-P) and possibility to add offset voltage (± 2,5 V). It also include a frequency measurement in frequency range (10 Hz to 40 MHz).
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Device for measuring of the reaction time
Bohuš, Michal ; Kolářová, Jana (referee) ; Balogh, Jaroslav (advisor)
The aim of this bachelor thesis was become acquainted with human reaction time,its measurements and use. Part of the project was to build a device that measures reaction time of audio-visual stimulus. The device consists of stimulating and controlling parts. Audio-visual stimuli are scanned and controlled by microcontroler ATmega 16. Based on the obtained reaction time evaluate reaction time of measured entity.
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EMD instruments and electromagnetic mmunity
Mikula, Dalibor ; Buchta,, zdeněk (referee) ; Havlíková, Marie (advisor)
The work deals with implantable devices and possibilities of interference of elektromagnetic field. At first, the electromagnetic compatibility is discussed. Basic terms are explained, followed by insisting on resources of possible distrurbing of implantable devices and standards dealing with this issue. Furthermore, short chapter about devices affecting function of implantable devices is introduced. It means devices which patients with implantable devices may meet in common life, as well as devices used in common life, also devices used jn medical environment. In the next part, measuring process of electromamagnetic effect in working compartment of FN Brno magnetotheraphy and elektrotheraphy is devised. There is a concept of measuring card thanks to which impulses of implantable devices are measured. Finally, a description of measuring on implantable devices in FN Brno. MIKULA, D. EMD instruments and electromagnetic immunity. Brno, 2009. 74 s. Master’s thesis in Brno University of technology on faculty of elektrical engeenerig and communication. Supervisor Ing. Marie Havlíková , Ph.D.
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Automotive audio amplifier and subwoofer
Kolka, René ; Šotner, Roman (referee) ; Dřínovský, Jiří (advisor)
This thesis deals with the project of two performance amplifiers for a subwoofer and for four basic car loud-speakers. The following part of the thesis is dealing with the power circuits of the amplifiers. The control of the amplifiers is realized by processor. The thesis is also dealing with the problems caused by sound system installation in a car, and concerns mainly with the boosters position and with producing high quality subwoofer and baffle-board.
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Device for demonstration of line coding
Navrátil, Marek ; Šilhavý, Pavel (referee) ; Číž, Radim (advisor)
This thesis aims proposal and implementation of laboratory equipment for generating Line codes. The theoretical part describes digital transmission of information and the individual Line codes. The practical part deals with the design and subsequent implementation of the entire device. The results of this works are the theme of device an apparatus for printed circuit boards, software for microcontroller measurement and results.
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Device for measuring of the reaction time
Bohuš, Michal ; Kolářová, Jana (referee) ; Balogh, Jaroslav (advisor)
The aim of this bachelor thesis was become acquainted with human reaction time,its measurements and use. Part of the project was to build a device that measures reaction time of audio-visual stimulus. The device consists of stimulating and controlling parts. Audio-visual stimuli are scanned and controlled by microcontroler ATmega 16. Based on the obtained reaction time evaluate reaction time of measured entity.
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Automotive audio amplifier and subwoofer
Kolka, René ; Šotner, Roman (referee) ; Dřínovský, Jiří (advisor)
This thesis deals with the project of two performance amplifiers for a subwoofer and for four basic car loud-speakers. The following part of the thesis is dealing with the power circuits of the amplifiers. The control of the amplifiers is realized by processor. The thesis is also dealing with the problems caused by sound system installation in a car, and concerns mainly with the boosters position and with producing high quality subwoofer and baffle-board.
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