发明名称 |
Anode monitoring and subsea pipeline power transmission |
摘要 |
An anode monitoring system for monitoring the integrity of anodes 2 provided on a metallic structure such as a pipeline system 1. A signal circuit Sn including the pipeline 1 and one of the anodes 2 is set up and appropriate signals are looked for at a central station 4. Reception of the signal at the central station 4 is dependent on the integrity of the anode 2 under inspection at that time. If the anode 2 is missing or defective the expected signal is not received and thus the fault in the anode 2 can be detected. A notch filter 5 is inserted in series between each anode 2 and the pipeline 1. The filter 5 provides a high impedance which can be signalled across but does not interfere with the cathodic protection system.
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申请公布号 |
US2002050830(A1) |
申请公布日期 |
2002.05.02 |
申请号 |
US20020032471 |
申请日期 |
2002.01.02 |
申请人 |
FLIGHT REFUELLING LIMITED |
发明人 |
HUDSON STEVEN MARTIN |
分类号 |
C23F13/00;C23F13/08;C23F13/22;(IPC1-7):G01R27/08 |
主分类号 |
C23F13/00 |
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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