| 发明名称 |
Data transmission system for pipelines uses modulated signal on pipeline is compatible with cathodic protection |
| 摘要 |
The data transmission system transmits signals between modems (40,50) along the electrically conducting pipeline (1) , which is already isolated from ground for active cathode corrosion protection (2,3), using capacitive couplers (41,51) and bridges (6) to cross isolating joints (12).
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| 申请公布号 |
DE19939941(A1) |
申请公布日期 |
2001.03.01 |
| 申请号 |
DE19991039941 |
申请日期 |
1999.08.23 |
| 申请人 |
ABB RESEARCH LTD., ZUERICH |
发明人 |
SABBATTINI, BRUNO;LEHMANN, JOSEF;RUDOLF, PAUL;MATTER, DANIEL |
| 分类号 |
F17D5/06;G08C19/00;(IPC1-7):G08C19/00 |
主分类号 |
F17D5/06 |
| 代理机构 |
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代理人 |
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