Cross-calibration of plant instruments with computer data

Details Cross-calibration of plant instruments with computer data Cross-calibration of plant instruments with computer data

2007-11-13

2007-11-13

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Temperature

Reexamination Certificate

active

10786197

ABSTRACT:
Methods and apparatus for an automated system for cross calibration based on data stored by a plant computer and data storage unit or a plant monitoring system. The automated system includes a processor executing software for retrieving data, determining average temperatures, determining deviations, and determining new calibration curve coefficients for deviating instruments. In another embodiment, the processor executes software for loading the historical data, selecting data points, removing deviate data, analyzing the data, reporting the data, and for recalibrating instruments that were determined to be deviating.

REFERENCES:
patent: 5105372 (1992-04-01), Provost et al.
patent: 6915237 (2005-07-01), Hashemian
patent: 6973413 (2005-12-01), Hashemian
patent: 7254520 (2007-08-01), Hashemian

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