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Multilayer Active Control For Structural Damping And Optical-Path RegulationTwo active-control concepts incorporated into system for suppression of vibrations in truss structure and regulation of length of optical path on structure to nanometer level. Optical-path-length-control subsystem contains two feedback control loops to obtain active damping in wide amplitude-and-frequency range. Concept described in more detail in number of previous articles, including "Stabilizing Optical-Path Length on a Vibrating Structure" (NPO-19040), "Controllable Optical Delay Line for Stellar Interferometry" (NPO-18686), "Test Bed for Control of Optical-Path Lengths" (NPO-18487).
Document ID
19950070307
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Rahman, Zahidul H.
(Caltech)
Spanos, John T.
(Caltech)
Fanson, James L.
(Caltech)
Date Acquired
August 16, 2013
Publication Date
October 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 10
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-19041
Accession Number
95B10486
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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