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Measuring station for the system of the remote energy supply
Dočekal, David ; Vaněk, Jiří (referee) ; Křivík, Petr (advisor)
This thesis is focused on the creation of measuring workplace for remote power supply system. This is the measuring of the workplace, engaged in the processing of measured data, the production of electrical energy made by a photovoltaic panel and wind turbines. In the theoretical part, the reader is familiar with the issue of renewable energy sources. The first chapter is about the energy of the wind. Here is described the emergence of the wind, the basic division of wind power, through the production of electrical energy to the measurement itself. The second chapter deals with the solar energy. This chapter describes the emergence of the solar energy, photoelectric effect, description of characteristic features and related evaluation of the photovoltaic panel. The reader learns the basic distribution photovoltaic panels here and their manufacturing. The third chapter is devoted to measurement methods and specifying the basic conditions for the evaluation of the operation of wind turbines and photovoltaic panel. In the fourth chapter describes the basic data on individual facilities, which have been selected for this thesis and the involvement of the measuring site. There is also included wind power JPT-100 photovoltaic panels A-130 anemometer TX20ETH, pyranometer SG420 and temperature sensor PT100. Measuring software is described in the fifth chapter. In the last chapter, contains the experimental measurements in the selected time interval and the actual evaluation.
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Microcontroller based temperature controller
Perůtka, Martin ; Fiedler, Petr (referee) ; Bradáč, Zdeněk (advisor)
The aim of the work was to design and carry out a microprocessor driven temperature controller which will be operated by PC or immediately by its own control panel. The controller should serve, for example, as a regulation of temperatures in rooms, in ovens where electrical energy is used for heat production. This controller is able to measure temperature through connected temperature sensors, which means a thermistor PT1000 and a thermocouple type K, and to regulate temperature by the help of a heating body connected to the power output part of the controller.In this piece of work there is an issue of temperature measuring by the help of thermocouples and thermistors analysed, there are also mentioned the means of controlling and switching of alternating electrical tension for power operating and analysis of an issue of device connection and communication by the help of RS232 interface and USB with PC. The work also deals with a design of PSD controller with its subsequent realisation. The controller is tested on a micro-condensational siccative oven developed for the UTB research in Zlín.
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Measuring temperatures in the rotor of an electrical machine
Pokorný, Vladimír ; Ctibor, Jiří (referee) ; Knobloch, Jan (advisor)
Tato práce se zabývá problematikou měření teplot v rotoru elektrického stroje. Těžištěm práce je návrh, výroba a testování čtyřkanálového bezdrátového měřicího systému, který je primárně určen pro měření teplot v rotoru elektrického stroje. První kapitola této práce – Resistance temperature detectors přibližuje problematiku použití odporových senzorů teploty, jejich normy, tolerance a měřicí obvody, které slouží pro měření odporu, respektive teploty. Druhá kapitola – SPI vysvětluje základy symetrické sériové komunikační sběrnice SPI, která je v navrhovaném měřicím systému využita pro komunikaci mikrokontroléru s teplotními čidly. Ve třetí kapitole Bluetooth autor vysvětluje komunikační standard Bluetooth Low Energy (BLE), díky kterému navrhované zařízení komunikuje a odesílá naměřená data ostatním zařízením v okolí. V úvodu této kapitoly jsou uvedeny základní parametry BLE a jeho výhody a nevýhody. Závěr této kapitoly pak rozebírá strukturu vrstev BLE. Následuje obsáhlá čtvrtá kapitola Hardware design, kde je detailně popsán hardwarový návrh bezdrátového teploměru. Začátek této kapitoly je věnován napájecímu zdroji, který je v tomto případě složen z 3,6 V baterie velikosti 1/2 AA a lineárního napěťového regulátoru, který se stará o stabilizaci napájecího napětí. Následuje popis měřicího integrovaného obvodu MAX31865, který byl vybrán pro měření teploty díky jeho vysoké přesnosti a velkému měřicímu rozsahu. Aby se ušetřila elektrická energie v době nečinnosti zařízení, každý ze čtyř senzorů je vzdáleně zapínán a vypínán povelem mikrokontroléru. Posledním bodem této kapitoly je návrh desky plošných spojů s ohledem na vyvážení komponent, aby nedocházelo k nežádoucím vibracím vlivem vysokých otáček rotoru. Měřicí systém se bude otáčet společně s rotorem motoru, se kterým je pevně spojen. Pevné spojení dovoluje měřit teploty kontaktní metodou. Pátá – podobně obsáhlá – kapitola Software design je zaměřena na popis firmware měřicího systému. První část kapitoly se zaměřuje na konfiguraci a inicializaci SPI sběrnice, nastavení komunikačních pinů a komunikační frekvence. Dále jsou popsány základní funkce pro čtení a zapisování registrů, které jsou využity pro řízení integrovaného obvodu MAX31865. Následuje popis implementace BLE do měřicího systému a popis hlavní smyčky programu (čtení teplot a vysílání naměřených dat pomocí BLE). Závěr této kapitoly se zabývá klientskou aplikací, která byla nad rámec zadání vytvořena a slouží pro příjem a ukládání dat z měřicího systému. Závěrečná – šestá kapitola –Device commissioning popisuje výrobu, oživení a naprogramování výrobku. Měřicí systém byl otestován při 6500 ot/min a při měření kalibrační křivky byla zjištěna průměrná odchylka +0,8% v rozsahu +20°C až +200°C . Přílohy na konci práce obsahují výrobní podklady. Produktový list výrobku lze nalézt v příloze A.
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Thermostat for measuring passive component controlled of AVR
Demjanics, Ferenc ; Koňas, Petr (referee) ; Roubal, Zdeněk (advisor)
The aim of this work is to familiarize with the design of the thermal test chamber to measuring passive components. Show features and involvement of selected circuits that ensure reliable operation of the device. For the realization of the role are the most important the Peltier cells and temperature sensors. But they can not work without the control unit. The control unit provides the necessary communication with each component and also with user. For this purpose we made a selection of suitable type of microcontroller and communication equipment (matrix keypad, LCD, buttons and LEDs). Subsequently was designed the algorithm to control the thermostat suitable for using in students training. The algorithm was written in the microcontroller in form of a program. There is also implemented a PSD controller in the program, which evaluates the data collected by a sensor. Then set the correct function of Peltier cells. After the thermostat was designed and realized, test measurements were performed and the results were documented and evaluated.
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Telemetric temperature measurement
Kvarda, Tomáš ; Rampl, Ivan (referee) ; Chmelař, Milan (advisor)
This thesis is concerned on making project of temperature measuring system in cryochamber with an accuracy of ±2°C. The project consists of selection of suitable sensor, competent measuring circuit, A/D converter and display. The last section consists of project of heating circuit.
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Extending the Laboratory Educational Kit PIC Edu Kit with a Set of Wireless Sensors
Hanuš, Tomáš ; Najman, Jan (referee) ; Sova, Václav (advisor)
This thesis describes the design and implementation of extension of laboratory training model PIC Edu Kit. It is about set of wireless sensors. These sonsors have to measure temperature and deformation. Mesure of temperature was realized by temperature resistive sensor Pt100 and deformation by resistive tenzometr. These wireless moduls comunication on protocol Wi-Fi. In this work is introduced propose of measuring dictucts for measure of temperautre and deformation. There is evidenced their realization, showed software for receiving dates on PC and programme for the microcontroler.
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Temperature control in the liquid thermostat using Atmel ATmega328 microcontroller
Hanulík, René ; Šandera, Josef (referee) ; Adámek, Martin (advisor)
This bachelor‘s thesis familiarizes reader with the issues of temperature control and measurement in the enviroment of liquid thermostat. Thesis describes some kinds of temperature sensors, their physical principes and choices of using them. There is also described properties of ATmega328 controller and communication resources. This thesis deals with implementation of bath thermostat controller unit and describes his software equipment together with PC controlling application.
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System of On-/Offline temperature measurement based on Lab View
Stejskal, David ; Hammer, Miloš (referee) ; Prostredník, Daniel (advisor)
The objective of this thesis was to create a LabVIEW-based program for temperature measurement using a personal computer. The program allows reading and post processing of digital signal from a measuring device. This device consists of a sensor type PT100, a measuring transducer and an analog-to-digital converter with USB output. The theoretical part of the thesis deals with resistance temperature sensors, signal analysis and methods for signal processing. The practical part is conceived as a guide to the created program. This part introduces vital sub-elements of the program and describes their principle, practical use and also the operating instructions. As required by thesis assignment, practical part includes verification of the measuring device, which was performed in laboratory of Czech Metrology Institute in Brno.
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Industrial PSD controller
Pelikán, Leoš ; Šír, Michal (referee) ; Bradáč, Zdeněk (advisor)
This master’s thesis deal with principles temperature measurement using resistive temperature sensor PT100 and algorithm design PSD controler. In Work is includ description problems temperature measurement and way evaluation by means of mikrokontroler, which by PWM output controls supplied heat power. Next is here described method realization controls device for heating electric furnace with setup via Ethernet.
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