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Measuring concentration of air ions
Pončík, Vlastimil ; Polsterová, Helena (referee) ; Buřival, Zdeněk (advisor)
Electro-ionic microclimate is a component of atmosphere which is created negative and positive ionts with different mobility and size. Man is affected of these ionts. Amount of positive and negative ionts in air influences affirmative physical and mental condition of man. Is known therapeutic effect of negative ions with high mobility, there is high concentration of them in some speleotherapeutic caves. Criteria for critizing of eletro-ionic microclimate are not determined in our legislation. This bachelor’s thesis show the posibility of the measurement of the concentration of ions.
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Quality monitoring and testing optimization at line AKD
Kuruc, Lukáš ; Hrušková, Veronika (referee) ; Polsterová, Helena (advisor)
This diploma thesis deals with issue of quality monitoring and final product testing at the AKD line. Output of this thesis is calculation of testing time optimization by Weibull distribution. In the beginning reader is familiar with AKD device, what quality management is and ways how to test final products in electrotechnical manufacturing. Main goal of this thesis is to describe differences between testing methods and optimize Burn-In testing method.
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Measure the impact of wireless technologies on TEM
Prokop, Martin ; Čudek, Pavel (referee) ; Polsterová, Helena (advisor)
The purpose of this diploma thesis is to research and compare available wireless communication technologies (frequency, modulation type, transmission speed and consumption). Describe transmission electron microscopes theory and deduce the most sensitive microscope parts to high frequency distortion. Investigate effect of wireless technology on CE standards and come up with, perform and evaluate the influence measurement of chosen technologies on base parameters of transmission electron microscope.
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Transfer the IEC 61850 standard for communication protocol ModBus
Šikula, Jiří ; ABB, Oleksiy Melnyk, (referee) ; Polsterová, Helena (advisor)
This work describes the modbus communication protocol used in earlier and recent medium voltage switchgears. It also describes the IEC61850, a communication standard for most of the switchgear manufacturers as ABB, Siemens and others. It further describes the station automation gateway COM600, which is capable of conversion between many communication protocols. And finaly in this work you can find the concept of a device which is capable of conversion from IEC61850 to Modbus.
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