Electro-pneumatic converter calibration

Details Electro-pneumatic converter calibration Electro-pneumatic converter calibration

1996-03-08

1998-09-08

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Fluid pressure

G06F 300

Patent

active

058046968

ABSTRACT:
A temperature compensation method for a microprocessor based electro-pneumatic converter device including an initial calibration sequence, a compensation sequence, and an operation sequence. Linearization of an electro-pneumatic positioner including the steps of adjusting the positioner feedback linkage until a predetermined reference position is attained, reading a position feedback value and determining the required feedback linearization value to achieve a linear relationship between the output/input. A calibration method and a configuration method independent of calibration for a microprocessor based electro-pneumatic converter device including an initial calibration sequence, a configuration sequence, and an operation sequence.

REFERENCES:
patent: 4386626 (1983-06-01), Hehl
patent: 4418392 (1983-11-01), Hata
patent: 4513782 (1985-04-01), Contartese et al.
patent: 4665938 (1987-05-01), Brown et al.
patent: 4843555 (1989-06-01), Hattori et al.
patent: 4931967 (1990-06-01), Boe et al.
patent: 5062446 (1991-11-01), Anderson
patent: 5179330 (1993-01-01), Nikolaus

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