发明名称 |
TURBINE FLOW METER FOR MEASURING FLOW VELOCITY AND DIRECTION |
摘要 |
A device 1 for measuring a fluid flow FF velocity and direction comprises : - a pivotable means 2 adapted to rotate at a pivotable means rotation velocity and direction depending on the fluid flow velocity and direction when in contact with the fluid flow, - a modulator 3 coupled to the pivotable means and adapted to rotate in conjunction with the pivotable means, - a fiber optical arrangement for providing an incident beam IB to the modulator and for receiving a return beam RB from the modulator, - the incident beam IB comprising an incident signal, the return beam RB comprising a modulated signal, the modulator 3 modulating the incident signal so as to form the modulated signal depending on the pivotable means 2 rotation velocity and direction. The modulator 3 comprises an encoder 30 comprising at least a first angular sector 34, a second angular sector 35 and a third angular sector 36, each angular sector having a determined attenuation coefficient so that the modulated signal comprises at least a first portion 64, a second portion 65 and a third portion 66 for each complete rotation of the encoder 30. The device 1 further comprises a processing means 6 for determining the fluid flow FF velocity and direction based on at least the first portion 64, the second portion 65 and the third portion 66 of the modulated signal.
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申请公布号 |
WO2007000224(A8) |
申请公布日期 |
2010.05.14 |
申请号 |
WO2006EP05386 |
申请日期 |
2006.06.01 |
申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;PRAD RESEARCH AND DEVELOPMENT NV;WU, XU;KALB, FREDERIQUE;CHOUZENOUX, CHRISTIAN |
发明人 |
WU, XU;KALB, FREDERIQUE;CHOUZENOUX, CHRISTIAN |
分类号 |
G01F1/10 |
主分类号 |
G01F1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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