High reliability pressure sensor
US6843537B2 · kind B2 · utility
10Cited by
18References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2001 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Sep 7, 2021 |
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. Each of the pressure sensors is connected to one of a pair of signal conditioning circuits. The gain of one of the signal conditioning circuits is a fraction of the gain of the other signal conditioning circuit. The outputs of each of the signal conditioning circuits are compared to a corresponding threshold. If both of the output signals exceed the corresponding threshold, it is determined that a malfunction of the pressure sensor has occured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.