A high-resolution optical measurement system for rapid acquisition of radiation flux density maps

To identify the power and flux density of concentrated solar radiation the Institute of Solar Research at the\udGerman Aerospace Center (DLR - Deutsches Zentrum für Luft- und Raumfahrt e. V.) has used the camera-based\udmeasurement system FATMES (Flux and Temperature Measurement System) since 1995. The disadvantages of low\udresolution, difficult handling and poor computing power required a revision of the existing measurement system. The\udmeasurement system FMAS (Flux Mapping Acquisition system) is equipped with state-of-the-art-hardware, is\udcompatible with computers off-the-shelf and is programmed in LabView. The expenditure of time for an image\udevaluation is reduced by the factor 60 compared to FATMES. The new measurement system is no longer associated with\udthe facilities Solar Furnace and High Flux Solar Simulator at the DLR in Cologne but is also applicable as a mobile\udsystem. The data and the algorithms are transparent throughout the complete process. The measurement accuracy of\udFMAS is determined to at most +/- 3 % until now. The error of measurement of FATMES is at least 2 % higher according\udto the conducted comparison tests