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Merjenje vpliva sevanja pri merjenju temperature zraka v klimatski komori
ID RUKŠE, JAN (Author), ID Bojkovski, Jovan (Mentor) More about this mentor... This link opens in a new window

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Abstract
Točne meritve temperature zraka so nekaj, kar v sedanjosti jemljemo za samoumevno, kljub temu pa k rezultatom prispeva mnogo dejavnikov. V diplomski nalogi smo preučevali vpliv toplotnega sevanja na meritve temperature zraka v klimatski komori, ki se lahko v teoriji močno spreminja glede na absolutno temperaturo ozračja, dimenzije in lastnosti površin temperaturnega senzorja, ter njihova prostorski položaj v klimatski komori. To smo storili tako, da smo uporabili sistem v principu enakih temperaturnih senzorjev, ki so obdani z valjem različnih dimenzij, ter prebarvani s premazom visoke oziroma nizke emisivnosti. Meritve so bile izvedene v različnih položajih senzorjev in v različnih klimatskih komorah, kjer smo opazovali razlike v izmerjenih temperaturah na različnih senzorjih v povezavi z njihovimi lastnostmi in lastnostmi preskusa. Diplomska naloga je sestavljena iz treh glavnih delov. Prvi zajema uvodno teorijo, opis prejšnjih raziskav ter pričakovanja meritev. Drugi del zajema opis uporabljene opreme in postopkov preskušanja. Tretji del sestavljajo prikaz rezultatov meritev, primerjave, njihova razlaga, komentarji in zaključne misli.

Language:Slovenian
Keywords:Toplotno sevanje, emisivnost, meritve temperature zraka, temperaturni senzorji, klimatska komora, LabVIEW
Work type:Bachelor thesis/paper
Organization:FE - Faculty of Electrical Engineering
Year:2022
PID:20.500.12556/RUL-140631 This link opens in a new window
COBISS.SI-ID:122718211 This link opens in a new window
Publication date in RUL:16.09.2022
Views:343
Downloads:57
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Secondary language

Language:English
Title:Measuring the effect of radiation during the air temperature measurements in a climatic chamber
Abstract:
Accurate air temperature measurements are something we take for granted these days, yet many factors can actively contribute to the measurements error. In the diploma thesis, we studied the influence of thermal radiation on air temperature measurements in the environmental test chamber, which in theory can vary greatly depending on the absolute temperature of the atmosphere, the dimensions, and properties of the surface of the temperature sensor, and their spatial position in the chamber. We did this by using a system of identical temperature sensors, surrounded by cylinders of different diameters, and painted with a coating of high or low emissivity. Measurements were carried out with the sensors in different positions in the chamber and in different chambers, where we observed the differences in the measured temperatures on the different sensors in connection with their properties and the conditions of the test. The thesis consists of three main parts. The first covers the introductory theory, description of previous research and expectations of measurements. The second part covers the description of the equipment used and the testing procedures. The third part consists of a presentation of the measurements results, comparisons, their interpretation, as well as comments and the final thoughts.

Keywords:Thermal radiation, emissivity, air temperature measurements, temperature sensors, environmental test chamber, LabVIEW

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