Title:
【発明の名称】調整器による診断システムおよび方法
Document Type and Number:
Japanese Patent JP2003503785
Kind Code:
A
Abstract:
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.
Inventors:
Adams, Paul Earl.
Woollams, David E.
Milliken, John Bee.
Wanderer, Richard Jay.
Low, Stephanie M.
Woollams, David E.
Milliken, John Bee.
Wanderer, Richard Jay.
Low, Stephanie M.
Application Number:
JP2001507160A
Publication Date:
January 28, 2003
Filing Date:
June 26, 2000
Export Citation:
Assignee:
Fisher Controls International, Inc.
International Classes:
G01L13/00; F17D5/06; G01F1/36; G01F1/38; G01F1/40; G01F1/42; G01F15/02; G05B23/02; G05D7/06; G05D16/06; G05D16/20; (IPC1-7): G05B23/02; F17D5/06; G01L13/00
Domestic Patent References:
| JPH0571666A | 1993-03-23 | |||
| JPH04232514A | 1992-08-20 | |||
| JPH0619554A | 1994-01-28 | |||
| JPH08278173A | 1996-10-22 | |||
| JPH01216051A | 1989-08-30 |
Attorney, Agent or Firm:
Yoshihiro Tsunoda