Design of a Spool Valve Overlap Value Pneumatic Measuring System Based on Constant Pressure Control

Rui Qi Song; Guang Lin Wang

doi:10.4028/www.scientific.net/KEM.621.482

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 621Design of a Spool Valve Overlap Value Pneumatic...

Design of a Spool Valve Overlap Value Pneumatic Measuring System Based on Constant Pressure Control

Abstract:

Pressure type pneumatic measuring is the most wildly used method in overlap value testing, which depends strongly on the constant pressure of gas supplying. However,control of pressureisrarely done before.This paper presentsa design of a new overlap value measuring system with pressure control sub-system, mechanical platformand a program-controlled sub-system. A hybrid controller is developed combined with fuzzyself-adjusting PID and time-optimal control. The final version of this controller is a computationally efficient analytic scheme suitable for implementation in thereal-time closed-loop pressure digitalcontrol. At last, the system control software developed on LabVIEW is briefly introduced.

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Periodical:

Key Engineering Materials (Volume 621)

Pages:

482-489

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.621.482

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Online since:

August 2014

Authors:

Rui Qi Song*, Guang Lin Wang

Keywords:

Fuzzy Self-Adjusting PID Control, Overlap, Pneumatic Measuring, Pressure Control

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