发明名称 |
STELLANTRIEB EINES VENTILS MIT DRUCKRÜCKKOPPLUNG, DYNAMISCHER KORREKTUR UND DIAGNOSE |
摘要 |
<p>In this invention, a valve positioner (50) receives a setpoint from a master (62) and provides a control pressure to a valve actuator (70) for controlling a valve (72). A sensing circuit (102) in the positioner (50) senses the position of the valve (72) and the control pressure, and a control circuit (94) in the positioner (50) uses both the sensed pressure and position to provide a command output to a pneumatic section (100) which produces the control pressure.</p> |
申请公布号 |
DE69427487(T2) |
申请公布日期 |
2002.04.25 |
申请号 |
DE1994627487T |
申请日期 |
1994.07.14 |
申请人 |
ROSEMOUNT INC., EDEN PRAIRIE |
发明人 |
LENZ, A.;BROWN, C.;WARRIOR, JOGESH |
分类号 |
G05D3/12;G05D7/00;G05D7/06;G05D16/20;(IPC1-7):G05D16/00 |
主分类号 |
G05D3/12 |
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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