능동 자기예압 공기베어링 스테이지의 진동감쇠 제어 Active Damping Control of an Air Bearing Stage with Magnetic Preloads

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In this paper, we proposed an air bearing stage with active magnetic preloads in vertical directions compensating motion errors and attenuating vibrations to improve dynamic characteristics. This preloaded design gives simpler configuration of the stage, and active control of preload can be used for compensating motion errors by feedforward method. To improve dynamic characteristics, vibration of the table is monitored by an accelerometer, and controlled by a DSP based digital controller with integrator and band pass filters for suppressing roll and pitch vibration modes. The modes were evaluated by measuring frequency response functions, and compared with compensated responses. This showed effective results for suppressing poorly damped regenerative vibration of air bearings.
Publisher
한국정밀공학회
Issue Date
2013-12
Language
Korean
Citation

한국정밀공학회지, v.30, no.12, pp.1321 - 1325

ISSN
1225-9071
URI
http://hdl.handle.net/10203/202724
Appears in Collection
ME-Journal Papers(저널논문)
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