Deployable large aperture optics system for remote sensing applications.

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Description

This report summarizes research into effects of electron gun control on piezoelectric polyvinylidene fluoride (PVDF) structures. The experimental apparatus specific to the electron gun control of this structure is detailed, and the equipment developed for the remote examination of the bimorph surface profile is outlined. Experiments conducted to determine the optimum electron beam characteristics for control are summarized. Clearer boundaries on the bimorphs control output capabilities were determined, as was the closed loop response. Further controllability analysis of the bimorph is outlined, and the results are examined. In this research, the bimorph response was tested through a matrix of control ... continued below

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101 p.

Creation Information

Sumali, Anton Hartono; Martin, Jeffrey W.; Main, John A. (University of Kentucky, Lexington, KY); Macke, Benjamin T.; Massad, Jordan Elias & Chaplya, Pavel Mikhail April 1, 2004.

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Description

This report summarizes research into effects of electron gun control on piezoelectric polyvinylidene fluoride (PVDF) structures. The experimental apparatus specific to the electron gun control of this structure is detailed, and the equipment developed for the remote examination of the bimorph surface profile is outlined. Experiments conducted to determine the optimum electron beam characteristics for control are summarized. Clearer boundaries on the bimorphs control output capabilities were determined, as was the closed loop response. Further controllability analysis of the bimorph is outlined, and the results are examined. In this research, the bimorph response was tested through a matrix of control inputs of varying current, frequency, and amplitude. Experiments also studied the response to electron gun actuation of piezoelectric bimorph thin film covered with multiple spatial regions of control. Parameter ranges that yielded predictable control under certain circumstances were determined. Research has shown that electron gun control can be used to make macrocontrol and nanocontrol adjustments for PVDF structures. The control response and hysteresis are more linear for a small range of energy levels. Current levels needed for optimum control are established, and the generalized controllability of a PVDF bimorph structure is shown.

Physical Description

101 p.

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  • Report No.: SAND2004-1267
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/918742 | External Link
  • Office of Scientific & Technical Information Report Number: 918742
  • Archival Resource Key: ark:/67531/metadc878068

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 1, 2004

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 23, 2016, 12:41 p.m.

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Sumali, Anton Hartono; Martin, Jeffrey W.; Main, John A. (University of Kentucky, Lexington, KY); Macke, Benjamin T.; Massad, Jordan Elias & Chaplya, Pavel Mikhail. Deployable large aperture optics system for remote sensing applications., report, April 1, 2004; United States. (digital.library.unt.edu/ark:/67531/metadc878068/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.