Computer Science
Scientific paper
Apr 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2376..160a&link_type=abstract
Proc. SPIE Vol. 2376, p. 160-177, Laser Power Beaming II, Harold E. Bennett; Richard D. Doolittle; Eds.
Computer Science
1
Scientific paper
The Phased Array Mirror, Extendible Large Aperture (PAMELA) prototype telescope phase I testing and verification has been completed. The prototype telescope is the first to have a fully adaptive primary mirror which consists of 36 hexagonal injection-molded Pyrex segments that are seven centimeters flat-to-flat. The segments are mounted on three long-throw voice-coil actuators for tip, tilt, and piston motion. The segments' tilts are measured with a Hartmann- Shack wavefront sensor, and the piston errors between adjacent segments are measured via inductive edge-sensors. The 0.5 meter telescope was successfully operated with simultaneously closed tilt and piston control loops for the entire array. Phase I test and verification results are shown for the closed loop operations.
Ames Gregory H.
Howard Richard T.
Lindner Jeffrey L.
Montgomery Edward E.
Patterson Alan F.
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