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Measurement of thermal field in electric machines
Dostálek, Martin ; Vítek, Ondřej (referee) ; Janda, Marcel (advisor)
Diagnosis temperature is one of the most important disciplines. We meet it in everyday life, but it is very important for all sectors of industry. This is a measurement providing an immediate state of the measured object. Contact measurement of different temperature sensors and contactless measurement using thermal imagers. The important part is the measurement of temperature rise of induction motor. Part of the work deals with losses in the electric motor. These losses are converted into heat, which affects from various parts of the machine. Correct identification of the temperature field is important in helping to design the cooling system of the instrument. Virtually the data obtained are compared with theoretical data. We will capture part of the device and realize thermal simulations in a suitable simulation program. We propose modifying the cooling machine and the resulting data from the simulation compares.
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Utilization of infrared camera for temperature measurement of electrical machines
Líbal, Jan ; Aubrecht, Vladimír (referee) ; Kuchyňková, Hana (advisor)
The master‘s thesis deals with utilization of infrared camera for temperature measurement of electrical machines. The first part describes non-contact temperature measuring, the second part describes principle of sensors that evaluate quantity of incident infrared radiation. In the next part there is termovision camera SAT-HY 6800 presented and the instructional manual for SAT Report computer programme created. This computer programme is used for analyzing of termovision pictures from the SAT-HY 6800 termovison camera. The chapter 7 describes temperature measuring of one-phase asynchronous motor type J22TO484. The chapter 8 describes temperature measuring of semiconductor components of EC motor G6 series. Both of these motors are produced by ATAS elektromotory Náchod a.s. The last part of the thesis describes creation of animation of one-phase asynchronous motor type J22TO455. The animation was created in 3ds Max computer programme.
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The controlling of peripherals by the web interface of 8-bit microprpcessor system
Majerčík, Miloš ; Lattenberg, Ivo (referee) ; Koutný, Martin (advisor)
This diploma thesis deals with description and subsequent implementation of web interface and control device for selected periphery devices through the use of processor module RabbitCore RCM3700 which is based on microprocessor Rabbit 3000. The importance of web interface based control is currently raised because of higher customers’ claims. Interactivity of these devices contains wide range of services, from simple event communication by text messages to complex driving systems for home which create the base of intelligent house. The customer can choose either the complete and more expensive solution or self-created one. There are two possible ways of creation. The first way is through the use of personal computer. The second one, more complex but also more effective, is by single-chip microprocessor. In this thesis the second one way is used. The module with processor with build-in web interface was used. Description and the way of control are given for this module and also for selected periphery devices, the LCD and digital temperature sensors. At the end the hardware and software part of control device is designed on the basis of gained information. The thesis contains also its brief description.
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Inteligent thermometer
Wirt, Tomáš ; Valach, Soběslav (referee) ; Macho, Tomáš (advisor)
This graduation thesis deals with temperature sensors and theirs connection to the microcontroller MCF52233. In the introductory chapters there is description of the principles and characteristics of the heat sensitive elements and theirs abilities of connection to the microcontrollers. Further there is a real proposal and description of the connection realization with sensors DS1620 (intelligent temperature sensor which communicates via serial synchronous link), DS18B20 (intelligent temperature sensor which communicates via 1-Wire bus), LM335 (precise temperature sensor) and KTY81-210 (resistance temperature sensor which is made of silicon). There was a need to create software for the communication between sensors and microcontroller MCF52233. Communication with the superior PC computer was done by USB interface. Software background was created to show temperature readings on the PC computer. Besides the realized USB communication there was done theoretical analysis of the communication via Ethernet bus. On the enclosed CD you can find testing software for the microcontroller and PC computer which allows you to get temperature values from sensors and show them on the screen of the PC computer.
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Sensory array for home automation
Bastl, Michal ; Lamberský, Vojtěch (referee) ; Vejlupek, Josef (advisor)
Bachelor thesis Sensory array for home automation describes the design of a simple system for measuring air temperature, relative humidity and light levels in the room. The aim is to design measuring units which will be able to communicate with the parent unit through the RS-485 fieldbus. Parent unit will be designed to allow the transfer of data to PC via the USB bus.
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Design of Chimney Effect Control
Toman, Marek ; Vejlupek, Josef (referee) ; Vlach, Radek (advisor)
This paper talks about problematics of excessive chimney draft. In the first part of the thesis the possibilities of chimney draft adjustability are summarized. Subsequently, a mathematical model, which describes the behavior of the chimney as a dynamic system, is built. Then a simple production control unit development is described. This control unit si designed to control the chimney draft. The main goal of this work is to design and manufacture electronic control based on the dsPIC microcontroller.
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Comparison of sensors for temperature measurement
Chaloupka, Roman ; Pavlík, Jan (referee) ; Bilík, Martin (advisor)
This work deals with temperature sensors. Basic terms are defined at the beginning of work. The following are distribution, description of construction and principle of touch sensors with electrical output. Other touch sensors are marginally described. Further is described principle of pyrometry and contactless sensors. In conclusion, work contains practical example of contactless temperature measurement.
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Temperature sensors
Hlatký, Pavel ; Charvát, Pavel (referee) ; Štětina, Josef (advisor)
This work deals with questions of temperature sensors. Definition of the fundamental terms and separation of temperature sensors with electrical measured variable output according to physical principle is included. Location of technical and price optimal indoors temperature sensors are executed in the other part of bachelor’s thesis. During making this piece were used literature of temperature sensors and the internet sources.
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Radiating shield for sensor outdoor temperature
Janáček, Adam ; Charvát, Pavel (referee) ; Štětina, Josef (advisor)
Bachelor’s thesis mentions methods for outside temperature measurement; each of this method is briefly described. Principles of outside temperature measurement, regarding placing of the temperature sensor, are shown. Importance of use of radiation shield for more precise measurement is pointed out. Radiation shield’s function and construction of aspirated and self-aspirated shield, as well as their main advantages and disadvantages are described. Market research then shows radiation shields made by their main manufacturers, each shield is briefly described. Two radiation shields, aspirated and self-aspirated, are designed, with respect to simple construction and knowledge gained during market research
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