20.500.12556/RUL-126686 Optical measurement of high-temperature melt flow rate This paper presents an optical method and system for contactless measurement of the mass flow rate of melts by digital cameras. The proposed method is based on reconstruction of melt stream geometry and flow velocity calculation by cross correlation, and is very cost-effective due its modest hardware requirements. Using a laboratory test rig with a small inductive melting pot and reference mass flow rate measurement by weighing, the proposed method was demonstrated to have an excellent dynamic response (0.1 s order of magnitude) while producing deviations from the reference of about 5% in the steady-state flow regime. Similar results were obtained in an industrial stone wool production line for two repeated measurements. Our method was tested in a wide range of melt flow rates (0.05-1.2 kg/s) and did not require very fast cameras (120 frames per second would be sufficient for most industrial applications). optical measurements mass flow rate melt cameras digital image processing motion estimation and optical flow velocimetry surface dynamics flow diagnostics optične meritve masni pretok taline true false true Angleški jezik Slovenski jezik Članek v reviji 2021-05-04 13:35:42 2021-05-04 13:35:45 2024-01-19 14:38:06 0000-00-00 00:00:00 2018 0 0 Str. 4202-4210 iss. 15 Vol. 57 May 2018 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2019-05-20 535(045) 1559-128X 10.1364/AO.57.004202 16345371 RAZ_Bizjan_Benjamin_2018.pdf RAZ_Bizjan_Benjamin_2018.pdf 1 F90C530D1C3B638F698C40D31F36389C b0ade2485ec725dac518e21d0b66145085fcd3daee280977c446293e73958d77 974a6cbb-accd-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142744 https://www.osapublishing.org/ao/abstract.cfm?uri=ao-57-15-4202 0 891c8bea-accd-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142743 Fakulteta za strojništvo 0 0 0