5 September 2017 Challenges of designing and testing a highly stable sensor platform: Cesic solves MTG star sensor bracket thermoelastic requirements
Author Affiliations +
Abstract
The Meteosat Third Generation’s extreme pointing requirements call for a highly stable bracket for mounting the Star Trackers. HB-Cesic®, a chopped fibre reinforced silicon carbide, was selected as a base material for the sensor bracket. The high thermal conductivity and low thermal expansion of HB-Cesic® were the key properties to fulfil the demanding thermo-elastic pointing requirements of below 1μrad/K for the Star Trackers mounting interfaces. Dominated by thermoelastic stability requirements, the design and analysis of the Bracket required a multidisciplinary approach with the focus on thermal and thermo-elastic analyses. Dedicated modal and thermal post-processing strategies have been applied in the scope of the light weighting process. The experimental verification of this thermo-elastic stable system has been a challenging task of its own. A thermo-elastic distortion measurement rig was developed with a stability of <0.1μrad/K in all three rotational degrees of freedom.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthias Kroedel, Christoph Zauner, "Challenges of designing and testing a highly stable sensor platform: Cesic solves MTG star sensor bracket thermoelastic requirements", Proc. SPIE 10372, Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems III, 103720H (5 September 2017); doi: 10.1117/12.2275318; https://doi.org/10.1117/12.2275318
PROCEEDINGS
9 PAGES + PRESENTATION

SHARE
RELATED CONTENT

Design of optics for compact star sensors
Proceedings of SPIE (October 28 2016)
Reduction of low frequency error for SED36 and APS based...
Proceedings of SPIE (November 21 2017)
Optical technologies for space sensor
Proceedings of SPIE (October 08 2015)
RapidEye product quality assessment
Proceedings of SPIE (September 22 2009)
ASTRO 1M a new system for attitude determination in...
Proceedings of SPIE (July 01 1991)
HDOS HD-1003 star tracker
Proceedings of SPIE (June 12 1995)

Back to Top