Dynamic Characterization of Thin Deformable PVDF Mirror

Abstract

Methodology for the design and fabrication of 5 inch diameter membrane-like mirror structures is explored, resulting in test articles with areal densities as low as 1.57 kg/m2 and a thickness of 1.5 mm. Each optical structure has 7 control patches etched into the PVDF layer, which can be used as actuators. These test articles are utilized to demonstrate the capabilities of an acquisition system to make measurements of static and dynamic actuation of the mirror surface. Static deformations are analyzed statistically and determined to yield maximum deformations in the actuated regions of -2.1 micro with a standard deviation of 0.33 micro when 400 volts are applied. The acquisition system was characterized for dynamic actuation of the surface and found to have a sample rate ranging from 4 to 14 Hz. This rate is found to be dependent upon the desired detail level of the surface description as calculated by the wavefront analysis software.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2005
Accession Number
ADA435241

Entities

People

  • Eric M. Trad

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Cyber
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Control Systems
  • Control Systems Engineering
  • Data Acquisition
  • Data Analysis
  • Data Processing
  • Differential Equations
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Modal Analysis
  • Piezoelectric Polymers
  • Resonant Frequency
  • Visible Spectra

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Materials Science (Mechanical Engineering).
  • Software Engineering