发明名称 |
Polarization based fiber optic downhole flowmeter |
摘要 |
A flow monitoring system includes a pipe for transporting a fluid therethrough. An optical fiber generally spirals about the pipe along a longitudinal portion having a predetermined length to serve as a single transducer for detecting flow information from the longitudinal portion. A linear polarizer/analyzer circuit communicates with the optical fiber. A light source communicates with the linear polarizer/analyzer circuit and generates a light signal along the optical fiber at a frequency greater than a period of a disturbance to flow past the predetermined length of the transducer. A reflector is disposed along the optical fiber for reflecting the light signal along the optical fiber. An optical detector communicates with the linear polarizer/analyzer circuit. The optical detector determines from the light signal dynamic events along the optical fiber indicative of flow disturbances passing by the transducer.
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申请公布号 |
US7894061(B2) |
申请公布日期 |
2011.02.22 |
申请号 |
US20080142258 |
申请日期 |
2008.06.19 |
申请人 |
QOREX LLC |
发明人 |
MACDOUGALL TREVOR WAYNE;SANDERS PAUL ERIC |
分类号 |
G01B9/02;G01F1/74;G02B6/26 |
主分类号 |
G01B9/02 |
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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