Combined flow, pressure and temperature sensor
US6343514B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1999 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Apr 6, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device for measuring pressure, temperature and/or flow velocity. It includes a sensor (6) with a sensor support body (13) provided with a diaphragm (15) covering a cavity (14) formed in the support body (13). A pressure sensitive element (41) is mounted on the diaphragm, for recording pressure. Furthermore, a temperature sensitive resistor (42) is mounted in the vicinity of the pressure sensitive resistor and has a known temperature dependence, for recording temperature. It also includes an electrical circuit (43, 44, 45, 46) selectively outputting signals from either of the pressure sensitive element and the temperature sensitive resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.