A bulk-unimorph PZT actuator for large piston motions with 2-axis small angle adjustments

Inbar Grinberg, Nadav Maccabi, David Elata

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a bulk-unimorph PZT actuator that can achieve large piston motions, and small angle adjustments. The actuator is constructed from four spiral arms supporting a central stage, and each arm can be actuated separately. The spiral arms are driven by both internal bending moments and torsion moments. We experimentally show that the torsional deformation in the arms dominates the response, and that the internal bending moments have a negligible effect. The presented device achieves a piston motion of up to 75μm, and small tilting angles around two perpendicular in-plane axes.

Original languageEnglish
Title of host publicationTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages2019-2022
Number of pages4
ISBN (Electronic)9781538627310
DOIs
StatePublished - 26 Jul 2017
Event19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 - Kaohsiung, Taiwan, Province of China
Duration: 18 Jun 201722 Jun 2017

Publication series

NameTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

Conference19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
Country/TerritoryTaiwan, Province of China
CityKaohsiung
Period18/06/1722/06/17

Keywords

  • Piezoelectric actuation
  • bulk PZT
  • interdigitated electrodes
  • piston motion
  • spiral arms
  • tilting micromirror

All Science Journal Classification (ASJC) codes

  • Chemical Health and Safety
  • Instrumentation
  • Electrical and Electronic Engineering

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