20.500.12556/RUL-140631 Merjenje vpliva sevanja pri merjenju temperature zraka v klimatski komori Measuring the effect of radiation during the air temperature measurements in a climatic chamber 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. 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. Toplotno sevanje emisivnost meritve temperature zraka temperaturni senzorji klimatska komora LabVIEW Thermal radiation emissivity air temperature measurements temperature sensors environmental test chamber LabVIEW true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2022-09-16 13:05:00 2022-09-16 13:05:07 2022-09-23 13:32:50 0000-00-00 00:00:00 2022 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 61072 122718211 Rukse_Jan_-_Merjenje_vpliva_sevanja_pri_merjenju_temperature_zraka_v_klimatski_komori.pdf Rukse_Jan_-_Merjenje_vpliva_sevanja_pri_merjenju_temperature_zraka_v_klimatski_komori.pdf 1 E68022F5378D42D2F0FD8AF650E4CA51 dc53bbac63ef93a1df0de73f04c26078ed59e8404ba94d3068a8e6b64be5f776 5b2e4888-35af-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=161414 Fakulteta za elektrotehniko 0 0 0