公开(公告)号：US10527547B2

公开(公告)日：2020-01-07

申请号：US15739123

申请日：2016-06-22

申请人： TECHNISCHE UNIVERSITAET WIEN

发明人： Bernhard Hofko ,  Markus Hospodka ,  Josef Fuessl ,  Lukas Eberhardsteiner ,  Hinrich Grothe ,  Florian Handle ,  Daniel Grossegger ,  Ronald Blab

IPC分类号： G01N21/64 ,  G01N33/42

摘要： The invention relates to a method and to a device for determining a material property, in particular the aging state or the aging resistance, of a bitumen material, comprising the steps: applying a substantially monochromatic first excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a first fluorescence radiation, excited by the first excitation radiation, at a measurement wavelength; applying a substantially monochromatic second excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a second fluorescence radiation, excited by the second excitation radiation, at the measurement wavelength; determining a first key figure for the material property of the bitumen material from the ratio between the intensity of the second fluorescence radiation to the intensity of the first fluorescence radiation.