|
|
Slitter rewinder control
Růžička, Kamil ; Pásek, Jan (referee) ; Richter, Miloslav (advisor)
This diploma thesis deals with the control of unwinding and winding tension sections on the slitter rewinder for packaging material. The essay was created in collaboration with SOMA company, which provided a machine for testing and measuring. The theoretical part describes the function of bitter rewinder, possible mechanical approaches of control the tension sections, and real mechanics of control on our machine. The next part explores selected hardware and its use on the rewinder. Further chapters are focused on the individual measuring chains, calibration, computations of required quantities and control algorithms. The last part compares the theoretical and measured values and evaluates the results of this essay.
|
|
|
Development of laboratory exercises for subject the Signals and systems analysis
Doleček, Josef ; Mucha, Ján (referee) ; Zvončák, Vojtěch (advisor)
The bachelor thesis deals with basic operation with signals and, using demonstrative applications in Matlab, it should explain these operation to CASS (Signals and Systems Analysis) students. In the theory part continuous-time signals (signals classification, periodic signals, Fourier series), complex numbers, sampling and discrete-time signals (operation of convolution and correlation) are described. Practical applications explain: square signal harmonics synthesis, two discrete-time signals convolution and cross-correlation, object distance detection by radar using cross-correlation, complex model of harmonic signal and signals sampling.
|
|
|
Optical detection of electrograms
Hanák, Pavel ; Kozumplík, Jiří (referee) ; Chmelař, Milan (advisor)
The aim of the study was focused on problem of electrograms recording with using voltage sensitive dyes. Study of electrograms recording was extended with thema of optical detectors suitable for measurement and noise analysis. Elimination of noise and disturption was made in program Matlab; lowpass filtration and wavelet transformation was used. Application for electrograms analysis was developed in latter part of this work.
|
|
|
Modelling of linear power drive with DC motor for control purposes
Vrbka, Michal ; Březina, Lukáš (referee) ; Houška, Pavel (advisor)
In my diploma thesis, I developed the model of a linear actuator for the control purposes. The first part summarizes the literature research of currently available linear actuator systems. The work further describes some of the capabilities of the simulation environment Matlab which was used for the creation of the computer model of linear actuators. In the last part, this theoretical model is compared with already available physical model of the system.
|
|
|
Measurement of conifers needles surface by MR tomography
Hladík, Roman ; Kubásek, Radek (referee) ; Mikulka, Jan (advisor)
This bachelor thesis deals with the tomography based on magnetic resonance and evaluation of scanned images of conifers needles. At first, it is described the physical basis and methods of magnetic resonance scanning of objects. Another part is devoted to graphical preprocessing, which consist of noise suppression and image segmentation. After that there are described the design and algorithm for parameter estimation implemented to the application. The first experimental measurements were lightly discussed and evaluated in the last part of the work. In the last part there are discussed results of the experimental measurement. The attached documents contain the source code in Matlab language.
|
|
|
Digital radiography- image processing simulation
Lamoš, Martin ; Kolář, Radim (referee) ; Drastich, Aleš (advisor)
This paper describes a MATLAB application with the main purpose of the simulation of noise components and noise elimination methods of Digital Radiography. The main parts of simulator are the model of a scene, procedures for loading the noise components to image data and methods for image processing. Various methods are employed depending on the type of noise. Subtraction techniques are used for the elimination of structural noise. The physical noise suppression is obtained using several methods of cumulation and Pixel Shift is used to reduce motion artifacts caused by the existence of moving noise. The techniques of superposition highlight the areas of interest in an image. Included are also auxiliary procedures for simulator running and presentation of final data. The model and the presented application can be used mainly for educational purposes as a powerful didactic tool.
|
|
|
Light diffraction and interference in laboratory exercises
Dvořák, Tomáš ; Šicner, Jiří (referee) ; Škarvada, Pavel (advisor)
The main purpose of this semestral project is suggestion and construction the laboratory task for measuring interference and diffraction of light, which would be teached in laboratory of physics. According to gained informations about optical phenomenon, the physical construction of the laboratory task was made. Subsequently the CMOS camera was connected and installed. There was also developed a software for controlling this camera. Software is able to control all supported functions of camera, capture and save samples from live recording and show the intensity decomposition of captured images. The most important function of developed software is ability to measure distances between particular diffraction local extremes.
|
|
|
Software for Processing of Sound Level Meter Data
Kříž, Petr ; Schimmel, Jiří (referee) ; Kurc, David (advisor)
This thesis deals with the measurement and evaluation of noise. Thesis summarizes the basic concepts of acoustics and describes methods of measurement and evaluation of noise, focusing on measurement uncertainty. Part of this work is the implementation of software for processing of sound level meter data NTi XL2 in Matlab including practical examples of its use.
|
|
|
Dynamic characteristics drive with frequency inverter
Loveček, Vladimír ; Marada, Tomáš (referee) ; Voldán, Jiří (advisor)
This bachelor thesis deals with a proposal of measurement equipment and software equipment for evaluation of the dynamic characteristics of the drive controlled by frequency inverter, and with subsequent measurement and evaluation. Torque measurements are made using the incremental encoder and evaluated on the basis of mechanical characteristics by development environment MATLAB.
|
|
|
Radar Signals with Pulse Compression Analysis in Matlab
Trnčíková, Veronika ; Dušek, Martin (referee) ; Šebesta, Jiří (advisor)
This thesis is dedicated to pulse modulation influence to the ambiguity function. The ambiguity function indicates the resolution of the system in range and Doppler frequency. The thesis contains the general introduction of radiolocation basis, individual modulations and the solution in MATLAB environment utilizing spare matrix principles. Graphs of ambiguity function for individual modulations created in MATLAB environment are included in the text.
|
guest ::
