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Development of a 3-DOF in-parallel compliant micro-motion stage for micromanipulation

  • Beihang University

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper addresses the design and control issues of a novel micromanipulator which uses a 3-DOF parallel compliant mechanism driven by PZT actuators. Based on the pseudo-rigid-body model of the mechanism, both its conceptual design considerations and the final prototype are outlined first. In order to achieve a fine close-loop control for the PZT, a control law called Variable Speed Integral PI with Switched Parameters is employed based on a simplified but effective dynamic model of PZT actuators. Results from performance testing of the prototype compliant micromanipulator demonstrate that it has repeatability with less than 1 micron. The compliant stage is used as a high-precision bioengineering-oriented micromanipulator.

Original languageEnglish
Pages (from-to)915-920
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5253
DOIs
StatePublished - 2003
EventFifth International Symposium on Instrumentation and Control Technology - Beijing, China
Duration: 24 Oct 200327 Oct 2003

Keywords

  • Compliant mechanism
  • Flexure hinge
  • Micromanipulation
  • PZT
  • Parallel mechanism
  • Repeatability

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