Invention Grant
US08234931B2 Karman vortex flowmeter assembly comprising a fiber bragg grating sensor and method to measure a fluid flow rate
有权
卡曼涡街流量计组件包括光纤布拉格光栅传感器和测量流体流速的方法
- Patent Title: Karman vortex flowmeter assembly comprising a fiber bragg grating sensor and method to measure a fluid flow rate
- Patent Title (中): 卡曼涡街流量计组件包括光纤布拉格光栅传感器和测量流体流速的方法
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Application No.: US12520511Application Date: 2007-12-18
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Publication No.: US08234931B2Publication Date: 2012-08-07
- Inventor: Lun Kai Cheng , Marinus Carolus Adrianus Maria Peters , Wouter Schiferli
- Applicant: Lun Kai Cheng , Marinus Carolus Adrianus Maria Peters , Wouter Schiferli
- Applicant Address: NL Delft
- Assignee: Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek TNO
- Current Assignee: Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek TNO
- Current Assignee Address: NL Delft
- Agency: Leydig, Voit & Mayer Ltd.
- Priority: EP06077315 20061222
- International Application: PCT/NL2007/050665 WO 20071218
- International Announcement: WO2008/078996 WO 20080703
- Main IPC: G01F1/32
- IPC: G01F1/32
Abstract:
An assembly comprising a fluid channel and a flowmeter, the flowmeter (1) comprising at least one vortex shedder (2) extending in the channel (C), each vortex shedder (2) being configured to generate Karman vortices (V) in fluid flowing through the channel (C) during operation, wherein each vortex shedder (2) is provided with a first fiber Bragg grating (FBG) of a fiber Bragg grating sensor (3, 7, FBG), wherein a Karman vortex frequency (fe) of the vortices (V) generated by the vortex shedder (2) is detectable utilizing a fiber Bragg grating (FBG) sensor signal relating to the respective first fiber Bragg grating (FBG) of that vortex shedder (2).
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