发明名称 |
REGULATOR FLOW MEASUREMENT APPARATUS |
摘要 |
<p>A method and an apparatus for determining fluid flow through a pressure 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 for calibrating the pressure regulator using a temporary flow meter disposed downstream of the throttling element. A system and method is also provided for calibrating a temperature transmitter associated with the pressure regulator.</p> |
申请公布号 |
CA2513861(A1) |
申请公布日期 |
2004.09.10 |
申请号 |
CA20032513861 |
申请日期 |
2003.12.23 |
申请人 |
FISHER CONTROLS INTERNATIONAL LLC |
发明人 |
ADAMS, PAUL ROBERT;GRUMSTRUP, BRUCE FREDERICK |
分类号 |
G01F1/24;G01F1/26;G01F1/36;G01F1/38;G01F1/40;G01F1/42;G05D16/06;G05D16/20;(IPC1-7):G05D16/20 |
主分类号 |
G01F1/24 |
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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