Measuring and testing – Instrument proving or calibrating – Fluid pressure
Patent
1998-08-21
1999-11-02
Raevis, Robert
Measuring and testing
Instrument proving or calibrating
Fluid pressure
137468, F16K 1738
Patent
active
059748559
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.
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Fisher Controls International Inc.
Raevis Robert
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