Development of In-Plane Surface Deformation Sensing for Thin Film PVDF Actuated Membrane Mirrors

Abstract

This study investigated the feasibility of surface deformation sensing of a membrane mirror using only embedded PVDF sensors. Results were compared to measured deformations using a scanning laser vibrometer. The frequency response function (FRF) was measured based on recorded voltages of a single-layer 7-sensor mirror actuated externally from the embedded PVDF actuators. Additionally, a two-layer, 7-sensor, 7-actuator membrane mirror was constructed for use, with one layer acting as the sensing layer and the other acting as the actuation layer. The measured FRF for this mirror was compared to previous results. Finally a single-layer 61-sensor PVDF mirror was constructed to experimentally investigate the practicality of denser sensor/actuators patterns. Experimental results for all configurations are presented.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2005
Accession Number
ADA451294

Entities

People

  • John J. Cornelius

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Actuators
  • Air Force
  • Control Systems
  • Data Acquisition
  • Detectors
  • Differential Equations
  • Fabrication
  • Films
  • Frequency
  • Frequency Response
  • Jet Propulsion
  • Materials
  • Physical Properties
  • Resonant Frequency
  • Satellite Imaging
  • Space Systems
  • Thin Films

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Nanofabrication and Microfabrication.
  • Robotics and Automation.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition