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TECHNICAL BRIEFS

Optimization of Performance Characteristics of Electropneumatic (Two-Stage) Servo Valve

[+] Author and Article Information
Dr. Igor L. Krivts

Applied Materials Inc., PDC, Box 211, Nes-Ziona, 70451, Israele-mail: igor_krayvitz@amat.com

J. Dyn. Sys., Meas., Control 126(2), 416-420 (Aug 05, 2004) (5 pages) doi:10.1115/1.1771693 History: Received January 01, 2003; Revised September 15, 2003; Online August 05, 2004
Copyright © 2004 by ASME
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References

Figures

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Two-stage servo pneumatic valve with jet-pipe pilot stage
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Two-stage servo pneumatic valve with flapper-nozzle pilot valve on the exhaust ports
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Two-stage servo pneumatic valve with flapper-nozzle pilot valve on the supply ports
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Upstream and downstream flows conditions in the spool chamber
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Dimensionless difference pressure in the spool chambers.
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Threshold and hysteresis
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Settling time of the two-stage servo valve
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Frequency response for the servo valve with jet-pipe pilot valve

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