Method, system and storage medium for performing online valve diagnostics
US7089086B2 · kind B2 · utility
56Cited by
57References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2004 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Mar 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/0254
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods and systems for performing online valve diagnostics. Valve characteristics such as step response, friction and spring range are determined while the valve is operating in a process without intervention by a controller deriving the valve diagnostics. Valve information is obtained while the valve operates in response to a control signal controlling a process while the valve operates through a series of gradual movements. Valve characteristics are then determined from the valve information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.