The space interferometer siderostats

The paper describes the Siderostats (SID) of the Space Interferometry Mission (SIM) that is being developed at JPL. The description focuses on the generic design for the SIDs, having a 336 mm diameter mirror with a double corner cube at the mirror's vertex. Mirror positioning is controlled by s...

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Bibliographic Details
Published in2009 IEEE Aerospace conference pp. 1 - 11
Main Authors Jau, B.M., Badescu, M., Goullioud, R., Trease, B.P., Zensheu Chang, Carson, J.M., Braun, D.F., Cook, B.T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2009
Subjects
Control systems
Extraterrestrial measurements
Hydraulic actuators
Instruments
Interferometry
Life testing
Mirrors
Optical beams
Space missions
Space technology
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Summary:The paper describes the Siderostats (SID) of the Space Interferometry Mission (SIM) that is being developed at JPL. The description focuses on the generic design for the SIDs, having a 336 mm diameter mirror with a double corner cube at the mirror's vertex. Mirror positioning is controlled by single stage linear actuators (no fine stage). The mirror's 8deg dual axis tip/tilt rotation is enabled through sets of hexfoil flexures. The entire SID configuration is described, key requirements listed, and results from preliminary analyses mentioned. Design details, positioning and sensing capabilities, as well as results from an actuator life test, are presented.
ISBN:1424426219
9781424426218
ISSN:1095-323X
2996-2358
DOI:10.1109/AERO.2009.4839433