New developments with design and construction of a thermal/vacuum qualified photogrammetric system |
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| Authors: | Jafar Amiri Parian Alessandro Cozzani Matteo Appolloni Gianluca Casarosa |
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| Institution: | 1. Engineering Department, Belgian Institute for Space Aeronomy, Ringlaan 3, 1180 Brussels, Belgium;2. Belgian Institute for Space Aeronomy, Ringlaan 3, 1180 Brussels, Belgium;3. KU Leuven, Dept. Electrical Engineering, ESAT – TELEMIC, Telecommunications and Microwaves, Kasteelpark Arenberg 10, bus 244, 3001 Leuven, Belgium;4. KU Leuven, Dept. Electrical Engineering, ESAT, Advanced Integrated Sensing Lab (AdvISe), Kleinhoefstraat 4, 2440 Geel, Belgium;1. Department of Aerospace Engineering and Engineering Mechanics, University of Texas, Austin, TX 78712, United States;2. Department of Astronomy, University of Texas, Austin, Texas 78712, United States\n;1. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China;2. National Institute of Standards and Technology, Gaithersburg MD 20899, USA;1. Departement of Automated Manufacturing Engineering, École de Téchnologie Supérieure, Montreal, Quebec, Canada;2. Departement of Mechanical Engineering, École de Téchnologie Supérieure, Montreal, Quebec, Canada |
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| Abstract: | In the frame of the development of a photogrammetric system to be used in thermal/vacuum chambers at the European Space Research and Technology Centre (ESTEC) of European Space Agency (ESA) and other sites across Europe, the design of a network using micro-cameras was specified by ESA-ESTEC. A thermal/vacuum qualified photogrammetric system, which is able to work and acquire images in vacuum and at cryo-temperatures, was constructed by ESA-ESTEC Test Centre Division. The current system uses four space qualified one-mega pixel cameras and is able to measure large space structures in vacuum and at temperatures down to ?170 °C with a global accuracy better than 1 part per 100,000 in object space. Several tests aiming at the qualification of the sensors and system in terms of operation and accuracy have been carried out. Special measures have been developed and special attention has been taken into account specifically for the first application of the photogrammetric system. It is to verify the ESA’s Herschel Telescope Flight Model alignment positioning. |
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