Automatic valve characterization of digital valve positioners

Details Automatic valve characterization of digital valve positioners Automatic valve characterization of digital valve positioners

2007-02-20

2007-02-20

Bastianelli, John (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Remote or follow-up control system for electrical actuator

Reexamination Certificate

active

10532068

ABSTRACT:
A digital valve positioner is controlled to automatically characterize a valve to provide a linear relationship between the valve control signal and the amount of flow.

REFERENCES:
patent: 4926903 (1990-05-01), Kawai
patent: 5190068 (1993-03-01), Philbin
patent: 5878765 (1999-03-01), Lange
patent: 6155283 (2000-12-01), Hansen et al.
patent: 6202680 (2001-03-01), Irokawa et al.

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