发明名称 |
Process equipment validation |
摘要 |
A Safety Instrumented System for use with a process control system receives pressure of process fluid in the process piping. A valve positioner positions a valve which controls flow of process fluid through the process piping. The valve positioner is caused to perform a partial stroke of the valve or otherwise introduce a perturbation into the process. A resulting change in sensed pressure due to the perturbation is used to diagnose operation of the process.
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申请公布号 |
US2005274417(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
US20040866930 |
申请日期 |
2004.06.14 |
申请人 |
ROSEMOUNT INC. |
发明人 |
PERRY DALE H.;SCHUMACHER MARK S.;HUISENGA GARRIE D.;LONGSDORF RANDY J. |
分类号 |
G05B23/02;(IPC1-7):G05D7/06 |
主分类号 |
G05B23/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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