Pressure transmitter with multiple reference pressure sensors

Details Pressure transmitter with multiple reference pressure sensors Pressure transmitter with multiple reference pressure sensors

2006-07-10

2008-12-23

Allen, Andre J. (Department: 2855)

Measuring and testing

Fluid pressure gauge

Bourdon

C073S753000

Reexamination Certificate

active

07467555

ABSTRACT:
Reliability and accuracy in a pressure measurement transmitter are provided by employing a plurality of absolute or gauge pressure sensors operating in conjunction with a differential pressure sensor. A method is also provided to perform diagnostics based upon the readings of the three pressure sensors. Further, should one of the three pressure sensors fail, a reasonable estimate of process pressure being measured by the failed sensor can be generated based upon the remaining two sensors.

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