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Wetting Balance Method Modification for SMD Wettability Measuring
Drab, Tomáš ; Kahle, Petr (referee) ; Starý, Jiří (advisor)
Project presents main influence on wettability of SMD and PCB using solder SAC 305 and testing possibilities. We have designed modificaton of wettability balance method leading to the solder globule method. We were testing thermal profile difference and then we determined thermal difference compensation. We were testing few types of SMD packages terminations and PCB´s surface protections, with two solders and two fluxes. We were comparing their wetting forces, wetting speed, and wetting stability. We have proposed other possibilities to optimisation of the method and testing.
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Current loop 0(4) - 20 mA Analyzer
Mládek, Ondřej ; B:TECH,, Petr Dobrovolný, (referee) ; Kahle, Petr (advisor)
The subject of master´s thesis the problematics of current loop. Within the thesis, the basic components of current loop and the possibilities of its usage are described. There has also been an analysis made of the crucial functions of analyzer which is currently being in the process of development. A focus is put on mode of source and measure. The related functions are crucial in terms of testing and simulation of current loop. Furthermore, the SPI is described and it is used to establish access to the analyzer’s display. The usage of FMEA method has been chosen for the purpose of circuit’s reliability assessment. Practical part describes development of the analyzer and its parts. FMEA method application for selected fault states is presented in final part.
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Možnosti měření ekonomického rozvoje a blahobytu
Kahle, Petr
Economic development and well-being are key aspects affecting the quality of life of individuals and societies. This bachelor thesis focuses on the systematization of the possibilities of measuring economic development and well-being, compares GDP with selected alternative indicators and verifies their correlation. The thesis explores the theoretical background, the current state of research and uses regression, correlation and cluster analysis to examine the relationships between GDP and alternative indicators. The aim is to contribute to the understanding of the possibilities of measuring economic development and well-being and their relevance for the design of economic policies and strategies. The paper tests hypotheses concerning the correlation between GDP and HDI, the contribution of alternative indicators, the relationship between GDP and the level of well-being of the population, environmental impact and investment in human capital.
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Wetting Balance Method Modification for SMD Wettability Measuring
Drab, Tomáš ; Kahle, Petr (referee) ; Starý, Jiří (advisor)
Project presents main influence on wettability of SMD and PCB using solder SAC 305 and testing possibilities. We have designed modificaton of wettability balance method leading to the solder globule method. We were testing thermal profile difference and then we determined thermal difference compensation. We were testing few types of SMD packages terminations and PCB´s surface protections, with two solders and two fluxes. We were comparing their wetting forces, wetting speed, and wetting stability. We have proposed other possibilities to optimisation of the method and testing.
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Current loop 0(4) - 20 mA Analyzer
Mládek, Ondřej ; B:TECH,, Petr Dobrovolný, (referee) ; Kahle, Petr (advisor)
The subject of master´s thesis the problematics of current loop. Within the thesis, the basic components of current loop and the possibilities of its usage are described. There has also been an analysis made of the crucial functions of analyzer which is currently being in the process of development. A focus is put on mode of source and measure. The related functions are crucial in terms of testing and simulation of current loop. Furthermore, the SPI is described and it is used to establish access to the analyzer’s display. The usage of FMEA method has been chosen for the purpose of circuit’s reliability assessment. Practical part describes development of the analyzer and its parts. FMEA method application for selected fault states is presented in final part.
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