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Influence of rotor slots number on a small induction motor losses
Palsovics, Norbert ; Hájek, Vítězslav (referee) ; Mach, Martin (advisor)
The aim of this semester work is to analyze the losses of induction motor, according to their measure, use programs using the finite element method for the detection of the motor and the subsequent evaluation and comparison of the results obtained. The first part deals with the general AM, losses and measure their losses. The next section is very Lossmeasurement submitted asynchronous motors. The measured two machines have different characteristics in the sheet. The following section is calculating the losses using the finite element method using ANSYS Maxwell and RMXprt.The next part is the analysis of motor losses with a different number of rotor bars. This section is addressed to the models developed and validated by measuring the actual machine.
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Engine Diagnostic
Holeš, Cyril ; Beran, Martin (referee) ; Svída, David (advisor)
The thesis is focused on determining the methodology of engine diagnostics for vehicles with common rail direct fuel injection. The first section describes the communication between the diagnostic tools and control units, and the common rail system for diesel engines. The next section specifies the procedure for the acquisition, processing and analysis of data using selective diagnostic tools along with software in a numerical computing environment. Subsequently, from the results, the equivalent electronic control of the fuel injection quantity is established for the purpose of research, vehicle servicing. The results may also allow for additional observations to be made.
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High precision differential thermometer
Sieklik, Ivan ; Wilfert, Otakar (referee) ; Barcík, Peter (advisor)
This work describes the principles of measurements of refractive-index structural parameter. This parameter represent intensity of atmospheric turbulence which is measured by a differential temperature meter. Basic properties of atmospheric transmission environment are specified and their influence on optical wave is stated. Furthermore, this thesis also describes fundamental types of sensors dedicated to temperature measurements. The aim of this work was to create a differential temperature meter which is able to measure the refractive-index structural parameter.
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Measurement of transfer speeds and delays in computer networks
Bárdossy, Adrián ; Kubánková, Anna (referee) ; Jeřábek, Jan (advisor)
Bachelor thesis is interested in measurement of transfer rate and latency in computer networks. In the first part of thesis is defined, which motodics of measurement we know, various RFC and their specifications, also various parameters about measurement in computer networks like bit rate, capacity of channel, latency. In the second part are prepared users interfaces and softwares for applying the measurement of thesd parameters. In the last part is application of these softwares and creating and testing methodic of network measurement.
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Documentation of the vicarage in the Pavlov village
Slezáková, Gabriela ; Machotka, Radovan (referee) ; Kratochvíl, Radim (advisor)
The thesis is engaged with making documentation of the parish building of the Roman Catholic Church in the South – Moravian village Pavlov. The purpose of this work is practical measuring of the object in the terrain using geodetic methods, calculation of the measured values and the following performance of designs for the appropriate reconstruction of historic building. The text section describes the various preparatory, surveying and office works. The main output of this work is design documentation. It includes a thematic map of the building area, drawing floor plans of the first, second floor and roof truss, fasade views and sections of the building.
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Company Performance Assessment
Cibíková, Blanka ; Pálka, Ladislav (referee) ; Veselý, Josef (advisor)
This diploma thesis deals with performance evaluations of C SYSTEM CZ a.s. Theoretical basis closer to the fundamental issue of work, explain the concepts of performance and quality, and focus on performance measurement tools. Analytical section gives more information about the company and its performance evaluation model is measured by START PLUS.
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Vibrodiagnostics of induction motor
Mašin, Dominik ; Dostál, Lukáš (referee) ; Janda, Marcel (advisor)
This thesis is dealing with measuring and evaluation of vibration signal. Vibration measurement is one of the most important operation for correct and fluent machinery service, not only from economical point of view but also because of security. Status monitoring of electric machine is a key to detect damaged parts and it is giving us an opportunity to avoid unexpected outages and failures in production. My work describes basic concepts and principals of vibration measurement. Asynchronous motor measurement and its evaluation is performed in practical part.
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Diagnostics of modern vehicles
Holeš, Cyril ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
Diagnostics of vehicles has become an important part of testing, control and developement of vehicles. The aim of this bachelor´s thesis is to summarize and compare the possibilities of diagnostics of modern vehicles. The first part of thesis focuses on the development of diagnostics, advantages and disadvantages of each type of diagnostics, review of the information obtained before the OBD II diagnostics and the list of standards and communication protocols. In the next part it compares the possibility of certain diagnostics in practice.
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Modern trends in technical measurements
Kollmann, Ladislav ; Vojáček, Zdeněk (referee) ; Vdoleček, František (advisor)
Bachelor thesis is focused on modern trends in technical measurements. The first part is devoted to the measurement status in the technical practice, the trends of its development and some selected analysis of these trends. An emphasis is put on the efforts of objectification of the measurement process to eliminate a man influence on its results. The final section shows new approaches to measuring with the example, which is a measurement of length – one of the oldest metrological tasks in human history.
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