Contaminant deposition control baffle for a capacitive pressure transducer
US6993973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2003 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Aug 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0636
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed transducer includes a housing, a diaphragm, an inner conductor, an outer conductor, and a first baffle. The housing defines an interior volume. The diaphragm is disposed in the housing and divides the interior volume into a first chamber and a second chamber. The diaphragm flexes in response to pressure differentials in the first and second chambers. The inner conductor is disposed in the first chamber. The outer conductor is disposed in the first chamber around the inner conductor. The first baffle is disposed in the second chamber and defines an inner region, a middle region, and an outer region. The inner region underlies the inner conductor. The middle region underlies the outer conductor. The outer region underlies neither the inner conductor nor the outer conductor. The first baffle defines apertures in at least two of the inner, middle, and outer regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.