Differential pressure transducer with inspectable welds
US9778130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Feb 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0038
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Certain implementations of the disclosed technology include a differential pressure transducer and method of assembly. The differential pressure transducer includes: a housing having a first pressure port and a second pressure port; a header welded to the housing; a cap welded to the header; a sensor module disposed in the header and in communication with first pressure port and the second pressure port. The sensor module includes a diaphragm having a first side and a second side. The first side is configured to receive a first pressure by the first pressure port, and the second side is adapted to receive a second pressure by the second pressure port. The differential pressure transducer also includes a reference tube configured to communicate the second pressure from the second pressure port to the diaphragm second side. The reference tube is welded to a portion of the header with an inspectable weld.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.