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Guitar processor
Novák, Jakub ; Hadinec, Michal (referee) ; Friedl, Martin (advisor)
Analog effects are an integral part of modern musician. Advancing time makes players change and create new sounds emanating from the sound system. Unfortunately, it is not possible with one effect, but necessary to connect a combination of selected and appropriate effects. With the coming of digital multi-effect, in compared with an older analog effects, the quantity of sound effects increased, on the other hand, the quality decreased. This bachelor thesis, guitar processor, links the quality of analog effects with simple operation via microprocessor. Turn several effects at once is certainly great advantage. In comparison with the original analog equipment, which consists of several individual units, the project offers connection of selected effects in one unit. The processor saves not only time but also space.
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Control unit for heat pump
Kada, Tomáš ; Friedl, Martin (referee) ; Hadinec, Michal (advisor)
This bachelor’s thesis is interested in optimal regulation of air-water heat pump for heating the family house. The emphasis is reach the maximum efficiency, lowest cost and longest life of heat pump. The regulation is carried out by microcontroller ATmega16, which receives data from several temperature sensors, real-time clock circuit and indoor unit with user interface. The regulation is divided into two parts – control of heat pump and circulation pump floating hot water to radiators.
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Simple agrocontroller
Pelikán, Michal ; Friedl, Martin (referee) ; Steinbauer, Miloslav (advisor)
Simple agrocontroller is a realization of control computer of spray machine in agriculture technique. Introduction describes the types of individual sprayers and their main differences. Hydraulic scheme displays the layout of regulators, ventils, hosepipes etc. Chapter Requirements defines needed functions and variables. Next chapter explains the structure of the layout of agrocontroller´s individual parts. Also defines required functions and features of these parts with real circuits and components and methods of gaining required values. Practical part show how printed circuits boards look like and what are features and properities of agrocontroller.
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Logger pulse from wattmeter
Severa, Pavel ; Kubásek, Radek (referee) ; Friedl, Martin (advisor)
Most electronic wattmeter contains output for processing information on the con- sumption of other devices. The aim of this semestral project is to create a suitable device for reading output from power meter, store this information on the removable medium in size and ability to integrate into the distribution cabinet. Among other things, will monitor and record mode cheaper electricity, known as night mode.)
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Laser gun and target for shooting sport practise
Poloch, Martin ; Drexler, Petr (referee) ; Friedl, Martin (advisor)
This work deals with complete design of a system for simulating shooting sport. Key aspects of the design are similarity with shooting from classic mechanical weapons, multifunctionality of the system and costs. The core of the simulation is a laser transmitter in the weapon and a photosensitive receiver in the target. One of the key part of this thesis is choosing the most suitable photosensor. The final version of the system is controlled by a group of microcontrollers and provides several types of feedback. For example lighting the place that has been hit with LED, sound signals, displaying shooting results, or evaluating them with a computer.
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Measurement of biological structures humidity
Vlk, Jáchym ; Kubásek, Radek (referee) ; Friedl, Martin (advisor)
The work summarizes known methods about measuring liquids and humidity in complicated biological structures. Particular methods and their principles are stated and described here. This work includes description and creation of inductive and capacitive sensor as well as information for creating inductive and capacitive sensor.
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Tester audio cables
Boštík, Ondřej ; Friedl, Martin (referee) ; Havlíková, Marie (advisor)
This thesis deals with the theoretical knowledge necessary to draft tester audio cables. The first section provides an overview of commercially available devices designed for testing audio cables. The second part is an overview of test cables and connectors, inclu- ding their practical application and its parameters. Next chapter presents development platform Arduino. The last chapter presents tester’s design including a description of its implementation and animation.
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Wave propagation in homogeneous line
Brázda, Daniel ; Steinbauer, Miloslav (referee) ; Friedl, Martin (advisor)
This work deals with the propagation of electromagnetic waves. In the theoretical section describes the propagation of waves in the open space and the line. The main objective of this work is to design a new layout laboratory exercises in which students measure the behavior of waves on a homogeneous line. The design include measuring the standing wave ratio (SWR) using the digital SWR meter, measure the voltage measured along the line and measuring the frequency dependence of the input impedance of the line.
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