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Thermal Imaging System for Measuring Body Temperature
Mysza, Róbert ; Kolář, Dušan (referee) ; Goldmann, Tomáš (advisor)
The COVID-19 pandemic brought increased need for measuring human temperature. This thesis deals with solution of using low-cost thermal camera module FLIR Lepton 3.5 for measuring human forehead temperature and examines the real usability of this in terms of an accuracy. In the beginning, I describe various methods of measuring temperature and factors, which can influence the measurement. Subsequently, I examine various factors influencing human body and surface temperature. As of result of thesis is full design and implementation of thermal image system for temperature measurement, which I tested in different environmental conditions and compared its the precision against medical contactless infrared thermometer.
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Temperature sensors
Mudrák, Michal ; Březina, Michal (referee) ; Štětina, Josef (advisor)
This bachelor thesis deals with problem int the field of temperature sensors. The beginning of the work is devoted to the definitions of the basic terms which are closely related to this topic. It is followed by distribution, description of the principle and realization of touch sensors with an electrical output. Marginally are discussed suitability of use and comparison of individual sensors. Next, the principle of calibration of resistance and thermoelectric sensors is described. The most common sources of calibration errors and measurement offsets are also summarized. At last, there is a practical example of linear calibration of chosen temperature sensors.
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Digital clock and thermometer with matrix display
Kerndl, Michal ; Stehlík, Jiří (referee) ; Šandera, Josef (advisor)
There is suggestion of obtaining exact time and temperature in this work, based on DCF signal and SMT160 temperature sensor. This project is based on LED matrix display wich is ready-to-connect module. Layout of this work is designed schematic and board layout wich can be used to produce working prototype. This prototype have been created and tested in practice.
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Remote-controlled switching of information systems - part II
Prečan, David ; Kapoun, Vladimír (referee) ; Herman, Ivo (advisor)
This bachelor´s thesis deals with remote communication over Ethernet interface. First, a brief survey of the existing solutions is presented. Then a remote temperature measurement using data transmission over Ethernet network is proposed. The proposed solution is described in detail including hardware and software design of an equipment for data transmission and evaluation that is based on ATmega 162/30 processor. This equipment communicates with a PC where the measured temperature is displayed. A functional sample of this equipment, which was used to verify the design, is described.
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Workplace of flow and pressure measurement
Brabenec, Jiří ; Beneš, Petr (referee) ; Bejček, Ludvík (advisor)
The thesis deals with formation of a workplace for preparation gaseous mixtures and their future usage. The main goal of the thesis is testing of new materials which have suitable usage as catalysts. Gaseous mixture is prepared by calorimetric mass flow meters with control valve and multiposition microelectric valve actuators. The next part describes measuring of pressure and temperature and controlling of furnace temperature. The thesis deals with specifications of all devices, their circuitry, communication and program controlling. All devices are controlled by computer with program which is programmed in LabVIEW.
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Heat measurement of electric machine
Trnka, Zbyněk ; Vítek, Ondřej (referee) ; Janda, Marcel (advisor)
The aim of this bachelor´s thesis was to familiarize with various methods of measurement of the temperature of electrical machines with cooling. The introduction of this work is dedicated to basic terms and definitions from spheres of advection, circulation, losses and heat removal from electric machine. The attention is especially devoted to contact measurement by means of thermocouples and next the measurement of temperature without contact. Finally, the work goes into analysis of losses, heat removal and measurement of the temperature of asynchronous machine.
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Electronic Compass
Špaňhel, Petr ; Slaný, Karel (referee) ; Šimek, Václav (advisor)
This bachelor's thesis deals with a design and construction of equipment that should offer an easy approach to measurement of temperature, air pressure and angular orientation to the Earth surface. Subsequently, this set of infromation will be shown in a concise way on a graphic LCD display. The introductory chapter provides a general outline to the hardware conception, which primarily involves reading of data from sensors and their graphical visualization. Details on control firmware aspects are included in the following two chpaters. Fourth chapter is aimed at device operation and its user interface. Finally, evaluation of the results and conclusion is provided.
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Calculating the temperature field distribution in an electrical machine
Haratek, Jiří ; Mach, Martin (referee) ; Janda, Marcel (advisor)
This diploma thesis deals with methods used to determine the temperature field distribution within an electric machine. The first part is focused on methods of temperature measurement, generation and transfer of the thermal energy within the electric machine, asynchronous motor in particular. The thesis describes classical methods of temperature measurement and it also deals with ANSYS Workbench finite element method for thermal analysis of the motor. The final part of the thesis is focused on a comparation of all discussed methods with respect to results of thermal test for real asynchronous motor and concludes the most proper method.
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