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Non-contact temperature measurement
Negrová, Stefania ; Merenus, Ondřej (referee) ; Hermanský, Dominik (advisor)
The bachelor thesis deals with non-contact temperature measurement, which is currently used for thermodiagnostics and prediction of temperature behavior of machines. In the thesis is described a basic overview of contact and non-contact methods of temperature determination. It focuses primarily on thermography and its uses for machine tools and includes two simple and clear measurements use of thermocamera.
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Temperature measurement of an asynchronous motor
Bartoň, Petr ; Deeb, Ramia (referee) ; Janda, Marcel (advisor)
In this thesis there are described methods which are used in order to measure a temperature in electric machines. Whereas there is an influence of magnetic field and mechanical effects in the electric machines it is possible to use only limited number of methods for measuring temperature. These methods can be divided into two basic groups. The first group is being called "contact measurement" and while the second one is "non-contact measurement". Contact measurements are performed by usage of resistant sensors or thermocouples. On the other hand, non-contact measurements are performed by pyrometers and thermal imager cameras. Theoretical values of warming are determined by the FEMM which operates on the basis of the finite element method. In the practical part there are compared several methods whereby asynchronous engine was measured at various loads. Measured values are compared with theoretical values.
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The heat build-up of tap-off units of busbar trunking system in relationship to their surfacing.
Forejtník, Jan ; Radil, Lukáš (referee) ; Foral, Štěpán (advisor)
This study is dedicated to the effect of surface modification on lid warming of busbar trunking system BD2 which is manufactured by Siemens company in Mohelnice town (CZ). By using experimental methods, it investigates heat transfer by radiation and natural convection. It evaluates which type of surface modification is more effective by transfer heat. This study uses a method of emisivity comparison and a procedure given in standards for heat up test afterwards. It led to recognition, that various colour shades used on busbar system have similar high emissivity. Smooth colour spraying transfers heat a bit more effectively than rough colour spraying. Outputs of supplementary measurements give basis for numerical simulations in SolidWorks software. Numerical analysis assists to interpret results, for example by sensitivity study of heat transfer depending on emissivity.
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Contactless temperature measuring
Kužel, Kristián ; Nykodým, Libor (referee) ; Němec, Zdeněk (advisor)
This work summarizes the existing knowledge of contactless temperature measuring in industry applications, deals with individual types of measuring devices and contains the market overview. The work focuses especially on stationary devices applied industrially. In the conclusion, it describes a selection of existing contactless pyrometers including a pricing overview. It also analyzes issues related to the contactless measurement and possible ways to prevent them.
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Monitoring of hazardous environment
Bilík, Martin ; Blecha, Radim (referee) ; Blecha, Petr (advisor)
Diploma thesis Monitoring of hazardous environment deals with possibilities of construction of monitoring device for the nuclear power station Temelín. In the first part are accurate requirements for monitoring device, individual risks and identify obstacles and opportunities how to overcome them. There is also description of basic options for measuring temperature and environmental monitoring. Using multi-criteria analysis was done the selection of all components, from which is possibility to construct the first development release of monitoring device. 3D models for each component and the overall design visualization facilities were created in the programming environment of Autodesk Inventor. The conclusion provides an overview of the financial cost of the equipment is assembled
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Temperature measurement of a machine tool
Novotný, Petr ; Merenus, Ondřej (referee) ; Hermanský, Dominik (advisor)
The aim of this work is to get acquainted with the problems of temperature measurement, various types of non-contact temperature measurement and types of non-contact gauges. It also tries to explain the basic concepts and knowledge from the field of machine tools and their thermal load. Part of the thesis is to test this knowledge using measurements at Intemac Solutions s.r.o. The acquired knowledge is then evaluated using graphs and tables.
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Temperature measurement using the pyrometers
Holík, Denis ; Kaňa, Václav (referee) ; Podaný, Kamil (advisor)
The thesis is pursuing research and analysis of information about function principles of pyrometers. Complex problematic of particular types of pyrometers and options of practical use is analysed. Basic errors of contactless temperature measurement are also included. Parameters of particular types of pyrometers are processed in the form of a table.
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Thermal processes in machining of metal and non-metal materials
Čermák, Filip ; Chladil, Josef (referee) ; Kalivoda, Milan (advisor)
This bachelor's thesis examines the temperature processes during the machining of various materials in the form of an experimental study. The elaboration of this topic includes acquaintance with machining technologies of milling and turning, introduction to the issue of temperature processes during the machining process and their measurement. The second part of the bachelor's thesis is focused on an experiment in which the temperature is measured by a pyrometer during the machining of metallic and non-metallic materials. In the end, the measured results are evaluated and presented.
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Temperature measurement of a machine tool
Novotný, Petr ; Merenus, Ondřej (referee) ; Hermanský, Dominik (advisor)
The aim of this work is to get acquainted with the problems of temperature measurement, various types of non-contact temperature measurement and types of non-contact gauges. It also tries to explain the basic concepts and knowledge from the field of machine tools and their thermal load. Part of the thesis is to test this knowledge using measurements at Intemac Solutions s.r.o. The acquired knowledge is then evaluated using graphs and tables.
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