Process device diagnostics using process variable sensor signal
US6601005B1 · kind B1 · utility
134Cited by
200References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1999 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Jun 25, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C19/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Process device diagnostic is provided for diagnosing the condition of a process by receiving a process variable sensor signal. The process variable sensor senses vibration noise signals carried in a process fluid of the process. The vibration noise signals are generated by the process, such as by operation of process control elements. The diagnostics isolates the process noise signals in the process variable sensor signal and evaluates the isolated signal to diagnoses the process and the process devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.