| Autor: |
Berkhoff, Arthur P., Wesselink, J.M., Basten, T.G.H. |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
STARTPAGE=1;ENDPAGE=8;TITLE=None |
| Popis: |
This paper presents results of a system for active vibration reduction on a setup with a vacuum pump that is tightly coupled with high-precision equipment. The precision of this equipment is critically dependent on the level of the vibrations that are introduced by the vacuum pump. The vibrations were reduced by a recently developed adaptive control scheme in a multi-input multi-output feedback configuration using a sampling rate of 12 kHz. The convergence properties of this algorithm allowed effective tracking of the varying excitation spectrum. Programmable digital minimum-phase reconstruction and anti-aliasing filters at a sampling rate of 100 kHz were used for an optimal tradeoff between sampling errors and phase shift. Effective broadband control was obtained in the frequency range of 100 Hz to 5 kHz, leading to 11.3 dB average broadband reduction on the error sensors. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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