Control-Oriented Modeling and Feedback Compensation For a Thin-Film TiNi Actuator

Abstract

This study sought to derive thermal and hysteresis models of actuation systems employing thin film NiTi. Future actuators are likely to exploit the high energy densities available from NiTi; however, an impediment to its application in high-bandwidth actuators has been the slow thermal time constants associated with the bulk material. High-bandwidth actuators using thin film NiTi show great promise due to the increased rates of heat transfer. This grant supported the design, fabrication, and characterization of a NiTi bubble actuator and the fabrication, testing, and excitation of a silicon beam's first resonant mode with a NiTi thin film. This grant also supported the development of the authors' thin film processing techniques. (6 figures)

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 2002
Accession Number
ADA414252

Entities

People

  • Gregory P. Carman
  • Robert T. M'closkey

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Bandwidth
  • Bulk Materials
  • Climate Change
  • Compensation
  • Energy
  • Excitation
  • Fabrication
  • Feedback
  • Films
  • Frequency
  • Frequency Response
  • Heat Transfer
  • High Energy
  • Materials
  • Phase Transformations
  • Thin Films
  • Transition Temperature

Readers

  • Control Systems Engineering.
  • Nanocomposite Materials Science
  • Powder metallurgy of Titanium alloys.