发明名称 |
DISTRIBUTED VIBRATION SENSING SYSTEM USING MULTIMODE FIBER |
摘要 |
An optical time domain reflectometry (OTDR) system is configured to detect Rayleigh backscatter reflected from a multimode sensing optical fiber. The system includes a single spatial mode filtering system to select a single speckle of the Rayleigh backscatter produced in response to an optical pulse launched into the multimode fiber. The detected single speckle may be used for distributed disturbance (vibration) detection. |
申请公布号 |
CA2725353(C) |
申请公布日期 |
2016.03.22 |
申请号 |
CA20092725353 |
申请日期 |
2009.05.20 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
DAVIES, DYLAN;HARTOG, ARTHUR H.;KADER, KAMAL |
分类号 |
G01D5/32;E21B47/00;G01B11/16;G01K11/32;G01M11/00;G02B6/00 |
主分类号 |
G01D5/32 |
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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