Pressure transmitter with multiple reference pressure sensors
US7467555B2 · kind B2 · utility
11Cited by
36References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2006 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Jul 10, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L27/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.