|
|
Precise bonding of composite materials
Tellinger, Adam ; Gregor, Lukáš (referee) ; Kupčák, Radim (advisor)
This bachelor's thesis deals with the issue of bonding composite materials. The first part of the bachelor's thesis is focused on research into the production of composite materials and gluing technologies. The content of the practical part is the design of test specimens and a preparation for their bonding with subsequent production. Furthermore, verification of compliance with the required accuracy of bonded joints when using different adhesives using 3D measurements.
|
|
|
RaspberryPI camera checker
Bubeník, Martin ; Janáková, Ilona (referee) ; Honec, Peter (advisor)
The diploma thesis deals with the industrial inspection of correctly made connectors based on computer recognition, and the detection and recognition application is implemented in Python on the Raspberry Pi platform.The work uses empirically known OpenCV library for recognition. The work also deals with the selection of suitable hardware devices, which are a camera with a lens and an illuminator, from which is created one compact device together with the Raspberry Pi microcomputer. The compact device is further mounted on the designed mechanical structure under which is created inspection zone. Finally, Raspberry Pi has a web-based user interface to check the inspection and the interface to write the data to the database.
|
|
|
A Brief Design of Optical Resonators
Hubík, Daniel ; Nešpor, Dušan (referee) ; Kadlec, Radim (advisor)
This bachelor thesis is focused on analysis of split-ring resonators in THz region. Simulations were made by finite elements method and by finite-difference time-domain method. At first we created a resonating structure that works in GHz region. Then we were observing a dependence of movement of resonant frequency on the size of resonator. In the final chapter we assigned frequency dependent values of permitivity to such structure. As the result we simulated working resonator at frequency 500THz. All simulations have been made in program HFSS ANSYS and Lumerical FDTD Solutions.
|
|
|
System for controlling optical fiber amplifier modules
Matoušek, Jan ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This diploma thesis deals with the design of the telecommunication device for optical amplifiers and the implementation of the universal software for thecommunication with an optical amplifier. An universal control interface has been created to control modules remotely via the SSH remote access or via the LCD display and buttons on the device. The Linux security is listed in this thesis. The device was designed in the 1U case, where the front and rear panels and the arrangement of elements inside were designed. Subsequently, the functionality of the device and the communication with the LCD display and the optical module were tested.
|
|
|
Liveness Detection on Finger Using Various Light Sources
Vančo, Petr ; Kanich, Ondřej (referee) ; Drahanský, Martin (advisor)
The purpose of this work was to increase quality, security and reliability in biometric systems. This work presents electric and optical characteristics of a human finger. In the first part of this work you can find a theoretical basis about biometric systems, a skin and light. The next part is devoted to electric characteristics of a human finger. The third part of this work describes design, implementation and results of testing optical characteristics of a finger. In the end you can find information about some of the improvements for the future.
|
|
|
Design of Monitoring Tower for targetry and laser focusing
Virostková, Kristína ; Kaiser, Jozef (referee) ; Knoflíček, Radek (advisor)
The final thesis was created in cooperation with the Institute of Physics of the Czech Academy of Sciences and European Laser Centre ELI Beamlines. It focuses on design of monitoring device for laser target observation in a high-performance laser particle accelerator. Details of scanning and positioning system designated for operation in UHV environment are presented in this thesis. Design changes were performed in scanning system in order to achieve more effective scanning. Positioning system, consisting of precise linear and rotary motors, is newly designed device with high precision positioning under 1 µm in direction of each axis. The purpose of monitoring device is to improve overall scanning precision, shorten targeting process, and increase user comfort.
|
|
|
Cableless optical transmission
Němec, David ; Dostál, Otto (referee) ; Filka, Miloslav (advisor)
This diploma thesis first handles the general issues concerning free space optics in the atmosphere, which will then discuss the components and adjustments modification RONJA in laboratory. The aim is to simplify the control of laboratory FSO with programming compensation for HyperTerminal and provide external simulation influences on the FSO measurements in non-standard situations such as fog. It was created RONJA terminal with just cursor control to communicate with the serial port, ping, and FTP protocol. In the last part of this work were measured by an abnormal situation on the optical link RONJA.
|
|
|
CWDM technology for optical wireless links
Kumpán, Vítězslav ; Zvánovec, Stanislav (referee) ; Wilfert, Otakar (advisor)
In this work an optical wireless test link for studying of atmospheric phenomena in the optical bands of 830 nm and 1550 nm is described. The WDM technology involving technology of optical fibers is included into transmitter of the link. The measuring devices for measuring power, spectrum and polarization control are included into receiver of the link. The outcomes of this work are both measuring chain design and verification of its functionality.
|
|
|
Cluster Analysis Module of a Data Mining System
Hlosta, Martin ; Burgetová, Ivana (referee) ; Zendulka, Jaroslav (advisor)
This thesis deals with the design and implementation of a cluster analysis module for currently developing datamining system DataMiner on FIT BUT. So far, the system lacked cluster analysis module. The main objective of the thesis was therefore to extend the system of such a module. Together with me, Pavel Riedl worked on the module. We have created a common part for all the algorithms so that the system can be easily extended to other clustering algorithms. In the second part, I extended the clustering module by adding three density based clustering aglorithms - DBSCAN, OPTICS and DENCLUE. Algorithms have been implemented and appropriate sample data was chosen to verify theirs functionality.
|
|
|
Evaluation of optical components for LED
Dobiáš, Jiří ; Pavelka, Tomáš (referee) ; Škoda, Jan (advisor)
This thesis deals with an evaluation of optical components for LED, which is based on laboratory measurements of available LED samples and optical elements. The evaluation is done according to established standards and is focused on efficiency and adjustment of luminous flux (beam angle, luminous curve). Furthermore was made a study engaged in an optical element influence on LED color properties (color temperature, spectral characteristics). In conclusion there is an optical elements usage overview and recommended procedure for selecting appropriate combination of LED and optical element.
|
guest ::
