Stephan Zschäck

Publications (3)0 Total impact

• Conference Proceeding: Integrated System Development Process for High-precision Motion Control Systems.

  Stephan Zschäck, Arvid Amthor, Marcus Müller, Johannes Klöckner, Christoph Ament, Wolfgang Fengler
  Proceedings of the IEEE International Conference on Control Applications, CCA 2010, Yokohama, Japan, September 8-10, 2010; 01/2010
• Article: Adaptive Reibkraftkompensation zur modellbasierten Positionsregelung von Nanopositionier- und Nanomessmaschinen (Model Based Position Control of Nanopositioning- and Nanomeasuring Machines Using an Adaptive Friction Cancellation Approach).

  Arvid Amthor, Stephan Zschäck, Christoph Ament
  Automatisierungstechnik. 01/2009; 57:51-59.
• Article: Position control on nanometer scale based on an adaptive friction compensation scheme

  Arvid Amthor, Stephan Zschäck, Christoph Ament
  [show abstract] [hide abstract]
  ABSTRACT: Abstract: This work concerns a non-model-based friction compensation scheme for dynamic position control on nanometer scale. The main goal of this work is to build up and implement a simple dynamic friction observer which allows an estimation of the friction force in combination with the system inertia against displacement. Experiments in the pre-sliding and sliding friction regimes are con-ducted on an experimental setup. After a short review of friction compensation, the experimental setup is explained in detail. Next, the observer is modeled mathematically and the used control scheme is presented. Finally, the friction observer is utilized as a non-model-based friction estimator combined with a classical feedback controller to compensate the nonlinear friction force and reduce tracking errors significantly. It is shown that the proposed controlling approach is able to realize a fast and ultra precise positioning over long distances.
  Proceedings // IECON 2008 . - Piscataway, NJ : IEEE Service Center, ISBN 978-1-424-41766-7. - 2008, S. 2568-2573.