Low-cost large-angle steering mirror development

Steven R. Wassom

doi:10.1117/12.826450

10 September 2009 Low-cost large-angle steering mirror development

Steven R. Wassom

Proceedings Volume 7424, Advances in Optomechanics; 74240L (2009) https://doi.org/10.1117/12.826450
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

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.

Citation Download Citation

Steven R. Wassom "Low-cost large-angle steering mirror development", Proc. SPIE 7424, Advances in Optomechanics, 74240L (10 September 2009); https://doi.org/10.1117/12.826450

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