High reliability pressure sensor
US6434456B1 · kind B1 · utility
11Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Dec 27, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S303/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The reliability of a pressure sensor is improved either by utilization of redundant components. A pair of pressure sensors are mounted upon a single pressure sensor diaphragm. The pressure signals generated by the pressure sensors are compared and, if the difference between the signals exceeds a predetermined threshold, it is determined that a malfunction of the pressure sensor has occurred. Alternately, additional diagnostic testing may be included to detect a malfunctioning sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.