Hermetic pressure transducer
US6453747B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Nov 27, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Dec 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/148
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A port fitting (12, 42) is formed with a closed, pedestal end forming a diaphragm (12a, 42b) on which a strain gauge sensor (22) is mounted. A support member (16, 44) is received on the pedestal end and is formed with a flat end wall (16a, 44a) having an aperture (16c, 44c) aligned with the sensor. A portion of a flexible circuit assembly (24a, 58a) is bonded to the flat end wall. An electronics chamber is formed in a connector (18, 46) which is inverted and maintained at a selected height adjacent to the flat end wall of the support member to facilitate soldering of the flexible circuit to terminals (20, 48) in the connector and electronic components to the flexible circuit. The port fitting, when assembled to the support member, is also maintained at the selected height adjacent to the inverted connector to facilitate wire bonding the sensor to the bonded portion of the flexible circuit. The connector (18, 46) is then turned over, bending the flexible circuit assembly (24, 58) into a generally U-configuration, and attached to the support member. In one embodiment, as a last step in assembling the transducer, a tubular outer housing (3) is fitted over the connector/support member …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.