发明名称 |
Regulator diagnostics system and method |
摘要 |
Apparatus for performing diagnostics through a regulator is disclosed. The pressure regulator is disposed in a fluid flow passage and has a throttling element moveable in the flow passage. A stem is attached to the throttling element. The apparatus includes a first pressure sensor for measuring pressure upstream of the throttling element, a second pressure sensor for measuring pressure downstream of the throttling element, and a travel sensor for detecting the position of the throttling element. A processor is provided which includes a stored algorithm for determining flow rate based on the measured pressure and travel values, and an alarm routine for generating logic alarms based on the measured operating parameters. |
申请公布号 |
US6441744(B1) |
申请公布日期 |
2002.08.27 |
申请号 |
US20000603157 |
申请日期 |
2000.06.23 |
申请人 |
FISHER CONTROLS INTERNATIONAL, INC. |
发明人 |
ADAMS PAUL R.;WOOLLUMS DAVID E.;MILLIKEN JON B.;VANDERAH RICHARD J.;LAW STEPHANIE M. |
分类号 |
G01L13/00;F17D5/06;G01F1/36;G01F1/38;G01F1/40;G01F1/42;G01F15/02;G05B23/02;G05D7/06;G05D16/06;G05D16/20;(IPC1-7):G08B21/00 |
主分类号 |
G01L13/00 |
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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