Invention Grant
- Patent Title: Velocity-enhanced flow measurement
- Patent Title (中): 速度增强流量测量
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Application No.: US12492649Application Date: 2009-06-26
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Publication No.: US08548753B2Publication Date: 2013-10-01
- Inventor: Steven Bruce Rogers , Andrew J. Klosinski
- Applicant: Steven Bruce Rogers , Andrew J. Klosinski
- Applicant Address: US MN Eden Prairie
- Assignee: Rosemount Inc.
- Current Assignee: Rosemount Inc.
- Current Assignee Address: US MN Eden Prairie
- Agency: Westman, Champlin & Kelly, P.A.
- Main IPC: G01F1/44
- IPC: G01F1/44

Abstract:
A process fluid flow measurement device includes a fluid flow member having an inlet with a first diameter and a throat with a second diameter that is smaller than the first diameter. A first process fluid pressure tap is disposed proximate the inlet and a second process fluid pressure tap is disposed proximate the throat. A differential pressure sensor is operably coupled to the first and second process fluid pressure taps. Differential pressure measurement circuitry is coupled to the differential pressure sensor to provide a differential pressure signal related to a difference in pressure between process fluid pressure at the first and second taps. A process fluid velocity measurement device is positioned in the throat to measure a velocity of process fluid flowing therethrough and provide a fluid velocity indication. The differential pressure sensor signal and the fluid velocity indication are used to provide a calculated indication of fluid flow. This calculated indication can be relative to multiphasic fluids such as two-phase or three-phase fluids.
Public/Granted literature
- US20090326839A1 VELOCITY-ENHANCED FLOW MEASUREMENT Public/Granted day:2009-12-31
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