20.500.12556/RUL-130031 Obvladovanje merilnih podatkov za pogoje toka zraka v merilni sekciji vetrovnika Management of measurement data of air flow conditions in a measuring section of the wind tunnel Pri umerjanju merilnikov hitrosti je pomembno poznavanje gostote toka zraka, saj je potrebno odčitek merila velikokrat korigirati na dejanske pogoje v toku zraka, ki so zagotovljeni pri umerjanju. V nalogi smo predstavili ustrezen model za določanje gostote vlažnega zraka in merilni sistem za merjenje vseh potrebnih parametrov (temperatura, tlak in relativna vlažnost). Naredili smo tudi analizo merilne zmogljivosti posameznih merilnikov. Izdelali smo nadzorni program, ki omogoča zajem podatkov iz etalonskega merilnika hitrosti in hkratno zapisovanje pogojev toka zraka in izračun njegove gostote. When calibrating air velocity meters, it is crucial to know the air flow density, as the meter reading must often be applied to the actual conditions in air flow, which are ensured during the calibration. In this paper we present an appropriate model for determining the density of moist air and we also present the measuring system for all the necessary parameters (temperature, pressure and relative humidity). We also performed an analysis of the measurement capability of individual meters. We have created a control program that enables the acquisition of data from the LDA measuring system and the simultaneous recording of air flow conditions and the calculation of its density. vetrovniki merilna zmogljivost pogoji toka zraka nadzorni program za zajem podatkov wind tunnels measurement capability air flow conditions control program for data acquisition true false false [U. Zupan] Slovenski jezik Angleški jezik Zaključna naloga 2021-09-10 08:31:05 2021-09-10 08:31:06 2023-11-29 13:27:29 0000-00-00 00:00:00 2021 0 Ljubljana 0 XV, 31, [2] str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 533.6.07:531.7:53.088(043.2) 233441 79986179 11053.pdf 11053.pdf 1 33CDE79376D88FAD5A4179FF1E7F78CC 96f40eb65d6db579f29774d4db32c3c25a58275850ab7bccb5f10f188d7ff2d2 6dcb35b8-1200-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=147082 Fakulteta za strojništvo 0 0 0