Diagnostic system for detecting rupture or thinning of diaphragms
US7295131B2 · kind B2 · utility
6Cited by
28References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2005 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Oct 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/1462
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A diaphragm diagnostic system for use in an industrial field device has a diaphragm and a diagnostic feature. The diaphragm is configured to couple the field device to a process fluid and has a plurality of layers. A first layer of the plurality of layers is exposed to process fluid of an industrial process. A diagnostic feature is coupled to the diaphragm to monitor an electrical parameter of the diaphragm and responsively infer an operative state of the diaphragm based on a change in the monitored electrical parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.