Experimental Demonstration of Precision Control of a Deployable Optics Structure

[+] Author and Article Information
R. Scott Erwin, Ruth L. Moser

Air Force Research Laboratory, 3550 Aberdeen Avenue, Kirtland AFB, NM 87117

Karl Schrader, Steven F. Griffin

Boeing-SVS, Inc., Albuquerque, NM 87117

J. Vib. Acoust 124(3), 441-450 (Jun 12, 2002) (10 pages) doi:10.1115/1.1473830 History: Received August 01, 2000; Revised February 01, 2002; Online June 12, 2002
Copyright © 2002 by ASME
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Conceptual rendition of a deployable space telescope system
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Conceptual rendition of PDOS structure in telescope application
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Precision Deployable Optics Experiment (PDOS)
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Precision Deployable Optics Experiment (PDOS).
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Power spectrum of ambient acceleration levels on granite slab before and after introduction of Firestone isolation system
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Instrumentation layout for PDOS experiment
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Measured open-loop piston power spectral density
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PDOS controller architecture
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Open-loop (solid) versus closed-loop (dashed) piston power spectral densities.
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Open-versus closed-loop transfer functions, actuator 1 to interferometer 1
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Open-loop versus closed-loop response to ambient excitation, piston motion
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Position command 1 transfer functions (closed-loop)
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Open- and closed-loop system response to impulsive acceleration input
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System response to ambient excitation, nighttime, open-and closed-loop configurations



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