Abstract:
A device is disclosed for the classification of a transparent component of a material flow using an optical detector unit, with allocatable optical axis which is directed toward the material flow, at least one illumination unit for illuminating the material flow from a space over the material flow, in which the optical detector unit is also contained, and a classifier, which classifies the component based on information which is recorded from the component using the optical detector unit, and a decision criterion. A retroreflector is provided at least longitudinally relative to the optical axis of the detector unit, downstream from the material flow in the viewing direction of the detector, the illumination unit provides at least two light sources, with first light source emitting light of a first type and a second light source emitting light of a second type.
Abstract:
A system for three-dimensional measurement of inaccessible hollow spaces g. sewage canal pipes) by means of a light source and a camera, which are disposed on an inspection head or carrier. A structured light source is used, and the camera and the structured light source have a common entry and exit aperture and have before the aperture at least partially one common optical axis or parallel axes, the distance between which is substantially smaller than the distance between the source point of the pattern and the object-side principle plane of the camera lens.
Abstract:
A device for measuring the positions and the diameters of the filaments in filament bundle comprising a laser scanner disposed adjacent the filament bundle wherein, in the optical path behind the filament bundle to be measured, are disposed an optical means such as a lens of mirror, as well as a filter preferably in the focal plane of said optical means for filtering out the light share not diffracted, as well as a detector and analysis means. The filter is permeable only for limited portions of the diffraction image, and the detector means measures the intensities at several locations of the diffraction image at the same time. In the analysis means the positions of the filaments are determined on the basis of the measured intensity curves while the diameters of the filaments are determined on the basis of the ratios of the measured intensities.
Abstract:
A process and an apparatus determines the position of an object by triangtion. In order to determine the location of an object, two illumination light beams coming from different directions are aimed at a reflector attached to the object and the reflected beams are detected by a location-sensitive sensor. In order also to detect the rotation position of the object, the reflector is partially mirrored so that a part of the illumination light beams striking thereon pass through it. The laser beams passing through the retro-reflector are detected in a sensor plane, which is spaced at a distance from the center of the reflector.