Pressure transducer
US5228334A · kind A · utility
7Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1992 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Mar 30, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0057
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure transducer is shown having a pressure responsive movable diaphragm which effectively forms a wall of a pressure chamber; the diaphragm upon sensing fluid pressure thereagainst is effective for accordingly varying an electrical resistance; a passage operatively interconnects the pressure chamber with a source of fluid whereby the fluid and its pressure are communicated to the pressure chamber; the passage is shown as being helically formed in order to, within a limited axial length about which the helical passage is formed, sufficiently damp perturbations in the pressure of the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.