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Methods for localization of pulsed broadband signal source
Machala, Petr ; Hadinec, Michal (referee) ; Drexler, Petr (advisor)
The topic of this barchelor’s thesis is the analysis of problems regarding localization of partial discharges (PD) and related PD recording, processing and interpretation in time and frequency domain. In majority of cases the occurrence of partial discharges refers to a certain defect in the measured device, therefore in practice (eg large equipment such as oil transformers) it appears to be very useful and economical to determine the exact position, where PDs are formed. To address these complex issues, it is necessary to design the entire measuring chain from PD detection to measured data processing and localization itself. In terms of data processing and PD localization many different localization and detection methods can be applied, some of them are presented in this documentation. These methods are gradually studied, implemented and afterwards tested using the input data of the experiment.
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Switchable filter for UHF band
Sedlák, Milan ; Čáp, Martin (referee) ; Drexler, Petr (advisor)
The bachelor thesis deals with the design of multi-channel switchable filter for ultra high frequency band. The theoretical part focuses on a basic features and principles of the realization of frequency filters and high frequency switches. The practical part focuses on the selection of appropriate components and complete design of switchtable signal filter.
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Switchable filter for UHF band
Sedlák, Milan ; Čáp, Martin (referee) ; Drexler, Petr (advisor)
The bachelor thesis deals with the design of multi-channel switchable filter for ultra high frequency band. The theoretical part focuses on a basic features and principles of the realization of frequency filters and high frequency switches. The practical part focuses on the selection of appropriate components and complete design of switchtable signal filter.
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Methods for localization of pulsed broadband signal source
Machala, Petr ; Hadinec, Michal (referee) ; Drexler, Petr (advisor)
The topic of this barchelor’s thesis is the analysis of problems regarding localization of partial discharges (PD) and related PD recording, processing and interpretation in time and frequency domain. In majority of cases the occurrence of partial discharges refers to a certain defect in the measured device, therefore in practice (eg large equipment such as oil transformers) it appears to be very useful and economical to determine the exact position, where PDs are formed. To address these complex issues, it is necessary to design the entire measuring chain from PD detection to measured data processing and localization itself. In terms of data processing and PD localization many different localization and detection methods can be applied, some of them are presented in this documentation. These methods are gradually studied, implemented and afterwards tested using the input data of the experiment.
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