Invention Grant
US07706987B2 In-flow determination of left and right eigenvectors in a Coriolis flowmeter
有权
科里奥利流量计中左右特征向量的流量测定
- Patent Title: In-flow determination of left and right eigenvectors in a Coriolis flowmeter
- Patent Title (中): 科里奥利流量计中左右特征向量的流量测定
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Application No.: US11574716Application Date: 2004-09-27
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Publication No.: US07706987B2Publication Date: 2010-04-27
- Inventor: Thomas Dean Sharp , David Frederick Normen , Stuart J. Shelley
- Applicant: Thomas Dean Sharp , David Frederick Normen , Stuart J. Shelley
- Applicant Address: US CO Boulder
- Assignee: Micro Motion, Inc.
- Current Assignee: Micro Motion, Inc.
- Current Assignee Address: US CO Boulder
- Agency: The Ollila Law Group LLC
- International Application: PCT/US2004/031549 WO 20040927
- International Announcement: WO2006/036139 WO 20060406
- Main IPC: G01F1/84
- IPC: G01F1/84
Abstract:
A method and apparatus for periodically calculating the relative phase of the left eigenvector for a vibrating conduit is provided. During normal operation, two drivers are used in tandem to excite the main bending mode of the conduit (202). Periodically, first one (204), then the second (206), of the two drivers is disabled, allowing measurements that enable the determination of the relative phase of the left eigenvector (208) for the vibrating conduit.
Public/Granted literature
- US20080011100A1 In-Flow Determination Of Left And Right Eigenvectors In A Coriolis Flowmeter Public/Granted day:2008-01-17
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