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Design of Experiment
Lachnit, Zdeněk ; Bednář, Josef (referee) ; Kotek, Luboš (advisor)
The main subject of this master thesis is to evaluate using of Design of Experiment in industrial company in the development of LED modules for cars. In background study Design of Experiment methodology is described. Next part of background study describes the general principles of termography measurements, next chapter includes the information’s about LED technology and temperature degradation. At the beginning of the practical part is a description of the team analysis due to selection of factors, next chapter validates importance of vias. In next chapter methodology of print circuit board preparations and measuring are described. A next chapter describes the implementation of design of experiment at voltages 8 V, 13,5 V, 16,5 V. Designs of Experiments were made for four or five factors. The reason for this decision was the manual adjustment of printed circuit boards. At the end of each Design of Experiment is the recommendation of factors and interactions settings with regard on response, which is the minimal temperature. At the end of master’s thesis is the final evaluation.
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Monocrystalic silicon - optical properties
Kahánek, Tomáš ; Vaněk, Jiří (referee) ; Špinka, Jiří (advisor)
This diploma thesis deals with optical properties of silicon. The main task of the work was to create silicon samples with ohmic contacts. Suitable radiation source was designed to measure absorption edge of monocrystalline silicon. Designed measuring station was realised. Measurements were performed on samples of p-type monocrystalline silicon provided by ON Semiconductor Rožnov. p. Radhoštěm. The absorbtion edge was measured.
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Wireless optical link
Haňka, Jiří ; Hudcová, Lucie (referee) ; Poliak, Juraj (advisor)
This thesis is aimed at section of transmission of digital data by using two optical wireless communications realized by two free-space optics transcievers working in full-duplex mode. Generally, the work describes present options of optical connections, their principles and comparison with other connections. Basic components of realized transmitter and receiver are mentioned with their characteristics and wirings. The work describes options of transmission and further deals with various external events, which influence characteristics of transmitted optical signal. Thesis describes the optical part of design and construction free-space optic and it’s ending energy balance of this link. Further, the work treats of basic use of ethernet technology in transmissions, coding and modulations of data transmitted by optical connection.
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Utilization of light emitting diode lighting for cycle tracks
Mikula, Martin ; Klapka, Milan (referee) ; Paloušek, David (advisor)
This bachelor’s thesis deals with construction of the illuminational modules for cycle tracks. Result is design of lamp for lighting at cycle tracks, staffed by the LED diodes. Single parts bachelor’s thesis are: - text report on the development and current state lighting - development LED diodes in the world -analysis my project - computer visualizations of the final design and technical documentation
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Industrial Tester for Photometric Values of LED diodes Used in Automotive Signal Lighting
Gaži, Dominik ; Froehling, Kenneth (referee) ; Baumgartnerová, Alena (advisor)
V posledních letech zažili světlomety v autech obrovský technický rozvoj, který se podílel na jejich současné složitosti. Aby řidiči i zákazníci byli spokojeni, je využíváno různých technologií pro neustálé dosahování účinnějších a bezpečnějších světelných zdrojů. Společnosti usilují o minimalizaci ztrát ve výrobě ve snaze šetřit životní prostředí a konat ekonomicky. Tato práce se zabývá výzkumem osvětlovací techniky a návrhem jednoduchého a efektivního zařízení pro testovaní chyb LED plošných obvodů ve světlometech, to vše za účelem minimalizace strat. Dalším cílem je výzkum možností konstrukce takového zařízení z technologického hlediska.
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LED based signal lights and luminaires for traffic applications
Mikula, Vladimír ; Baxant, Petr (referee) ; Drápela, Jiří (advisor)
Chief topic of a Master’s Thesis is comparing of conventional sources of light with LED diodes, their characteristics. This work deals with utilizing LED diodes in automotive lighting, in railway applications and universal information about principle of lighting. Else this work describes feasibility study of headlight of railway locomotive. Emphasis is laying for clearness of this work.
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Design of linear clock with LED digital scale
Javorský, Dominik ; Krčma, Martin (referee) ; Svoboda, Petr (advisor)
This bachelor thesis deals with the design and production of linear clocks with LED digital scale by 3D printing. The beginning of the work gives an overview of existing structural design and also a brief overview of today's electronic components used in the creation of linear clocks. In the following part, the work deals with the design and production of linear clocks. The output of the work is a functional model that satisfy the requirements of scale with a range of 12 hours and a resolution of 5 minutes. The work also contains drawing documentation of the assembly, selected components and software used to control linear clock.
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Biosensor of halogenated substances as device using fluorescence method
Sedláček, Jiří ; Prokop,, Zbyněk (referee) ; Hubálek, Jaromír (advisor)
This master thesis deals with design and construction of device for optic biosensor. The device are using for detected halogen compound in the water. For excitation testing sample is used LED diode about wave length 590 nm. Photocounter is used for detection of the emitted light after fluorescence Such as fluorescent marker are 5(6)-carboxynaphthofluorescein. The thesis is divided into three head parts. The first part includes the theory needed for realization; the second part takes in detail description of the construction and function of the device and the last part describes measurements with the device.
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Design of microscope LED illumination system
Gricová, Monika ; Dostál, Zbyněk (referee) ; Antoš, Martin (advisor)
The objective of this bachelor thesis was to design illumination assemblage in confocal microscope Confocal 2002. First part of this paper describes types and components of confocal microscopes. For correct function of the microscope, high-power illumination by a white light emmiter is required. Based on the analysis of the background research, suitable LED diode was selected. In experimental part of this work, eight optical systems are proposed, that has been assembled and evaluated. Based on the evaluation of obtained paramteres, the optimal assemblage was selected and designed for production.
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