A method for auto-adjustment of a new piezoelectric drive: Closed-loop control for precise centering of the drive kinematics

R. Zeichftibl, B. Gottlieb, C. Wallenhauer, S. Herzig, A. Kappel, T. Liith

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

7 Scopus citations

Abstract

Piezoelectric Actuator Drives (PADs) introduce a new kind of rotary motors, combining high dynamics, torque, and positioning accuracy. The working principle is based on a microtoothed pair of ring and shaft, which guarantee form-fit and continuous force transmission. Due to miniaturization constant speed and absolute positioning accuracy depend on precise adjustment and therefore demand control to overcome mounting tolerances and thermal influence.In this paper a method for adjusting the PAD is presented, which makes use of the smart sensing function of the piezoelectric elements. In a simplified model the expected feedback will be calculated and an appropriate closed-loop controller will be proposed.

Original languageEnglish
Title of host publicationIEEE 2009 International Conference on Mechatronics, ICM 2009
DOIs
StatePublished - 2009
EventIEEE 2009 International Conference on Mechatronics, ICM 2009 - Malaga, Spain
Duration: 14 Apr 200917 Apr 2009

Publication series

NameIEEE 2009 International Conference on Mechatronics, ICM 2009

Conference

ConferenceIEEE 2009 International Conference on Mechatronics, ICM 2009
Country/TerritorySpain
CityMalaga
Period14/04/0917/04/09

Keywords

  • Auto-adjustment
  • Centering
  • Closed-loop control
  • Piezoelectric actuator drive
  • Sensorless

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