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Proceedings Paper

SiC lightweight telescopes for advanced space applications: 2) structures technology
Author(s): Michael I. Anapol; Peter Hadfield; Theodore W. Tucker
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Paper Abstract

A critical technology area for lightweight SiC-based telescope systems is the structural integrity and thermal stability over spaceborne environmental launch and thermal operating conditions. Note, it is highly desirable to have an inherently athermal design of both SiC mirrors and structure. SSG has developed an 8 inch diameter SiC telescope system for brassboard level optical and thermal testing. The brassboard telescope has demonstrated less than 0.2 waves P-V in the visible wavefront change over +50 C to -200 C temperature range. SSG has also fabricated a SiC truss structural assembly and successfully qualified this hardware at environmental levels greater than 3 times higher than normal Delta, Titan, and ARIES launch loads. SSG is currently developing two SiC telescopes; an 20 cm diameter off-axis 3 mirror re-imaging and a 60 cm aperture on-axis 3 mirror re-imager. Both hardware developments will be tested to flight level environmental, optical, and thermal specifications.

Paper Details

Date Published: 28 August 1992
PDF: 8 pages
Proc. SPIE 1693, Surveillance Technologies II, (28 August 1992); doi: 10.1117/12.138094
Show Author Affiliations
Michael I. Anapol, Sensor Systems Group, Inc. (United States)
Peter Hadfield, Sensor Systems Group, Inc. (United States)
Theodore W. Tucker, Sensor Systems Group, Inc. (United States)


Published in SPIE Proceedings Vol. 1693:
Surveillance Technologies II
Sankaran Gowrinathan; James F. Shanley, Editor(s)

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