Invention Grant
- Patent Title: Method and apparatus for pressure measurement using fill tube
- Patent Title (中): 使用填充管进行压力测量的方法和装置
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Application No.: US12327050Application Date: 2008-12-03
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Publication No.: US07954383B2Publication Date: 2011-06-07
- Inventor: Charles R. Willcox , Robert C. Hedtke , Liangju Lu
- Applicant: Charles R. Willcox , Robert C. Hedtke , Liangju Lu
- 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: G01L9/12
- IPC: G01L9/12
Abstract:
A pressure sensor includes a fill tube which is arranged to couple to a process pressure. A sensor is coupled to the fill tube and is configured to measure pressure of fluid in the fill tube as a function of a change of a physical property of the fill tube. Circuitry is provided to measure pressure using the pressure sensor, and to measure pressure based upon the change of the physical property of the fill tube.
Public/Granted literature
- US20100132472A1 METHOD AND APPARATUS FOR PRESSURE MEASUREMENT USING FILL TUBE Public/Granted day:2010-06-03
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