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 language | English |
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Title of host publication | 2015 European Control Conference (ECC) |
Publisher | IEEE Explore |
Pages | 1088-1093 |
Number of pages | 6 |
ISBN (Electronic) | 9783952426937 |
DOIs | |
Publication status | Published - 23 Nov 2015 |
Event | 14th annual European Control Conference - Linz, Austria Duration: 15 Jul 2015 → 15 Jul 2015 |
Conference
Conference | 14th annual European Control Conference |
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Country/Territory | Austria |
City | Linz |
Period | 15/07/15 → 15/07/15 |