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Spectral anlysis with superesolution
Vintera, Jiří ; Macho, Tomáš (referee) ; Čejka, Miloslav (advisor)
VINTERA, J. Spectral anlysis with superesolution. Brno: University of Technology, The Faculty of Electrical Engineering and Communication, 2008. 85 p. Master’s thesis. This thesis deals with the topic of super-resolution spectral analysis in the Signal Processing Toolset. The Signal Processing Toolset is a software component of the LabVIEW 8.1. program equipment. The thesis consists of three main parts. In the first part the basic theoretic concepts of the Model-Based Frequency Analysis are described. The second part serves as a user manual for the super-resolution spectral analysis in the Signal Processing Toolset. The last part describes the application of the theory introduced in the first part, by means of testing the properties of the methods used by the Toolset.
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Real Time operating system in LabVIEW - LabWINDOWS/CVI
Povolný, Petr ; Bejček, Ludvík (referee) ; Čejka, Miloslav (advisor)
The aim of this theses is to make user acquinted with programming of real time applications in LabVIEW and LabWINDOWS/CVI environment. The introduction outlines basic properties and parametres of operating systems. Key requirements of real time operating systems are discussed here. Their basic concept is described, focusing on VxWorks operating system and comparison with deterministic properties of common MS Windows operating system. In the second part, there is a brief specification of LabVIEW and LabWINDOWS/CVI environment and a description of real time applications built up in these environments. The final part of this theses proposes a system for analog data acquisition for checking on deterministic properties of real time application and applications built up on MS Windows.
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Software for field gamaspectrometr
Adamec, Filip ; Richter, Miloslav (referee) ; Čejka, Miloslav (advisor)
This work is about design, implementation, menu and communication with superior system for gamaspectrometer. The first part of the document describes basic principles of measuring of gamma spectra and their processing. The second part describes in basics software core of the spectrometer, handling of the keyboard, graphic and text output. Used algorithms are described, and their implementation. The third part contains analysis of requirements on menu, basic concepts of menu control. Next, it is described how to handle inputs from user, like numbers, date and time, and also how to solve the menu for display of values and for input of values. The forth part describes requirements for communication with superior system (PC), analyses how to do deal with this and reasons for this solution. The conclusion brings all concepts used in the previous chapters and reached goals.
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Demonstration IVI drivers National Instrument's technology
Válek, Petr ; Havránek, Zdeněk (referee) ; Čejka, Miloslav (advisor)
This thesis treats IVI drivers, their advantages and origins. It describes program demonstrating IVI Engine work, which was part of the assignment. Furthermore are described program properties, functions and algorithms. There is also described way of working with attributes (adding, editing and deletion) in Labwindows/CVI, brief chapter about IVI Foundation and description of digital multimeter driver made for demonstration purposes. Also, results and control measurement procedures, with which presented IVI drivers features were checked, were described. Lastly, achieved results and possible enhacements are presented.
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Measurement system for laboratory of experimental biology
Zálešák, Marek ; Klusáček, Stanislav (referee) ; Čejka, Miloslav (advisor)
There is a breif description of the Lab VIEW from National Instruments in the following text. It also describes the connection measuring cards through different types of buses on the PC. There is also information about the aquatic condition of plants as well as arrangements which will be implemented on the equipment generated during this work. In other parts of the text there is analysed the implementation of measurement and control pressure in the plant and flow measurement weighing using the LabVIEW 8.2
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TZB Temperature control system
Březík, Petr ; Čejka, Miloslav (referee) ; Bejček, Ludvík (advisor)
This document deals with a measurement of house temperature, for air conditioning, controlled by micro. In the first part there is a whole system and design of future solution described. In the second part theoretical analysis of the most widely used methods of temperature measuring is elaborated. The following part handles the market research considering the solution in industry companies. In a list there are compared the most used sensors, which are used for temperature measuring mainly in AC. In the fourth part a chosen sensor is in detail described, along with its communication and inner functions. In the fifth part there is a micro controller Microchip PIC16F876A for measure board designed. Then a scheme of printed circuit is presented. In the last chapter a software solution of terminal and micro controller.
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Optimization of production of thin films of metallic materials
Čejka, Marek ; Kadlec, Michal (referee) ; Šubarda, Jiří (advisor)
The present thesis deals with optimization of the formation of thin layers of metallic materials. In the theoretical part was elaborated overview of the implementation of the formation of thin- film structures, particularly using vacuum techniques. Chemical and physical vapor deposition. They were described methods of pretreatment of thin layers. The findings were discussed methods of controlling the pre-treated surface, quality control and mutual adhesion of coating layers. In the experimental part of the pre-treatment methods were selected and applied to selected substrates. Pretreatments were evaluated using a control surface by wetting angles and by atomic force microscopy. Then, the metal structure formed of copper on the pretreated substrates. Implementation by means of magnetron sputtering. Adhesion layers was checked by testing the surface lattice method. The quality was observed by scanning electron microscopy. The results were used to design the technological process of making metal layers.
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Processing of digital signals from interferometer
Trličík, Jakub ; Čejka, Miloslav (referee) ; Havránek, Zdeněk (advisor)
Abstract This bachelor thesis deals with the S/PDIF digital signal processing from interferometer Polytec OFV-5000, by measurement application created in LabVIEW. This paper describes the theory of laser vibration measurement and encoding S/PDIF digital signal. Text also introduces a Polytec system for vibration measurement and system for data acquisition by National Instruments. The following is a description of the created measurement application, divided into three parts: decoding an S/PDIF, acquisition and display of digital data and acquisition and display of analog data to compare with digital output. In the last part of the thesis are presented the results of comparing analog and digital output, and an evaluation of the achieved results.
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