Prediction of error magnitude in a pressure transmitter
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United States of America Patent
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Mar 2, 2004
Grant Date -
N/A
app pub date -
Aug 27, 1999
filing date -
Aug 27, 1999
priority date (Note) -
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Abstract
A pressure transmitter with an output predicting the magnitude of error in the pressure transmitter's output. A pressure sensor is adapted to sense a process pressure. A controller coupled to the pressure sensor generates a transmitter output representing the process pressure. A memory stores predetermined data predicting magnitudes of transmitter output error as a function of cumulative excessive sensor output levels, and also stores a record of cumulative excessive sensor output levels. The controller calculates a predicted present magnitude of transmitter output error as a function of the accumulated record and the predetermined data, and generates the prediction output.
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