Open AccessEffect of Servo Valve Dynamic on Precise Position Control of a Pneumatic Servo Table
Author(s) -
Toshinori FUJITA,
Kenji Kawashima,
Takashi Miyajima,
Taro Ogiso,
Toshiharu KAGAWA
Publication year - 2008
Publication title -
international journal of automation technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.513
H-Index - 18
eISSN - 1883-8022
pISSN - 1881-7629
DOI - 10.20965/ijat.2008.p0043
Subject(s) - control theory (sociology) , electrohydraulic servo valve , servo bandwidth , servo control , feed forward , servo , servo drive , servomechanism , tracking (education) , position (finance) , control engineering , trajectory , computer science , tracking error , engineering , control (management) , physics , artificial intelligence , mechanical engineering , finance , economics , psychology , pedagogy , astronomy
In experimentally investigating the effect of servo valve dynamics on control of a pneumatic servo table with an air bearing, we propose control using a PDD2 and a feedforward controller, then test step and trajectory tracking response with natural servo valve frequencies. We confirmed that pneumatic servo performance is affected by servo valve dynamics. We found that tracking error fell below +- 0.5 mm when the servo valve has a natural frequency of 300 Hz.
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