Measuring a fiber angle of reinforcing fibers in a fiber composite or a preform of a fiber composite

摘要

Method for measuring a fiber angle of reinforcing fibers (2) in a fiber composite or in a preform (1) of a fiber composite, wherein a surface (4) of the fiber composite or preform (1) comprises structured light comprising at least one light section (10) illuminated from one direction and the light (11) reflected from the surface (4) is registered from another direction with an optical camera (12), wherein the surface (4) is scanned with the at least one light section (10) and from Intensity distributions of the camera (12) registered reflected light (11) a height profile of the surface (4) is determined, characterized in that the course of reinforcing fibers (2) from the combination of measurement of the height profile of the surface (4) and evaluation of Intensity distribution of longitudinally determined contour contours of the surface (4) reflected light (11) is detected, wherein from the intensity distribution along a plurality of profile lines (20) of the height profile of the surface (4) in the direction of the at least one light section (10), a profile of at least one thread (17) extending through one of the surface (4) excellent in its environment reflection, along the surface (4) is determined.