Patent ID: 6100537
Filing Date: 2000-08-08
Classification: G01N

Abstract:
A measuring system for recognition of surface features of a product, (3) e.g. flat glass, rapidly moved on a conveyor (2) and having a surface which at least partially reflects and/or scatters light, with a sensor system (1) comprised of a plurality of transmitter/detector elements (6, 7), preferably of infrared-LED and photodiodes and phototransistors, being provided which is directed towards the reflecting and/or scattering surface of the product and stationary relative to the moving product (3), wherein the light radiating from each transmitter element (6) and reflected and/or scattered is received by the associated detector element (7) and/or by the neighboring detector elements (7) and converted into an electric signal, and wherein the plurality of transmitter/detector elements (6, 7) is arranged along at least one line extending transversely to the transport direction (10) of the product (3) and vertically offset to the conveyor, wherein each detector output is connected to an apparatus for determining the intensity of the detector signal, so that the intensity signals of all detector elements (7), received upon simultaneous radiation of all transmitter elements (6), are fed in parallel and simultaneously to an evaluation unit (5).