Butterworth pattern based simultaneous damping and tracking controller designs for nanopositioning systems

Douglas Russell, Andres San-Millan, Vicente Feliu, Sumeet Sunil Aphale

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The Butterworth filter is known to have maximally flat response. Incidentally, the same response is desired in precise positioning systems. This paper presents a method for obtaining a closed-loop Butterworth filter pattern using common control schemes for positioning applications, i.e. Integral Resonant Control (IRC), Positive Position Feedback (PPF), and Positive Velocity and Position Feedback (PVPF). Simulations show a significant increase in bandwidth over traditional design methods and verify the desired pole placement is achieved. Experiments are performed using a two-axis serial kinematic nanopositioning stage. The results show a significant improvement in bandwidth and increased positioning accuracy, specifically at the turn-around point. This allows a greater portion of the scan to be used and improved positioning accuracy at high scanning speeds.
Original languageEnglish
Title of host publication2015 European Control Conference (ECC)
PublisherIEEE Explore
Pages1088-1093
Number of pages6
ISBN (Electronic)9783952426937
DOIs
Publication statusPublished - 2015
Event14th annual European Control Conference - Linz, Austria
Duration: 15 Jul 2015 → …

Conference

Conference14th annual European Control Conference
CountryAustria
CityLinz
Period15/07/15 → …

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    Russell, D., San-Millan, A., Feliu, V., & Aphale, S. S. (2015). Butterworth pattern based simultaneous damping and tracking controller designs for nanopositioning systems. In 2015 European Control Conference (ECC) (pp. 1088-1093). IEEE Explore. https://doi.org/10.1109/ECC.2015.7330685