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Proceedings Paper

Low-cost large-angle steering mirror development
Author(s): Steven R. Wassom
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Paper Abstract

The Space Dynamics Laboratory has combined internal funds with its background in space-rated mechanisms to develop a prototype low-cost large-angle 2-axis fine steering mirror (FSM). The FSM has a 75-mm clear aperture, 30-degree mechanical elevation angle, 120-degree mechanical azimuth angle, and a 70-Hertz small-amplitude bandwidth. Key components include a rotary voice coil, unique patent-pending feedback sensor, brushless DC motor and optical encoder. Average error is <1 arcsec and total mechanical mass is <1 kg. Additional accomplishments include a passive launch lock, launch vibration testing, portable demonstration electronics development, and thermal-vacuum testing to pressures down to 1e-7 torr and temperatures down to 164 K.

Paper Details

Date Published: 10 September 2009
PDF: 12 pages
Proc. SPIE 7424, Advances in Optomechanics, 74240L (10 September 2009); doi: 10.1117/12.826450
Show Author Affiliations
Steven R. Wassom, Space Dynamics Lab. (United States)

Published in SPIE Proceedings Vol. 7424:
Advances in Optomechanics
Alson E. Hatheway, Editor(s)

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