| 摘要: |
| 本文介绍了利用水声遥测遥控技术建立起来的海底管道阴极保护电位检测系统。着重说明检测装置的结构和原理,建立了保护电位的PPM—PTC水声信息传输方式,系统由水上部分和水下部分组成,电位测量采用双参比电极体系(Ag/AgCl和Zn参比电极)。系统能进行远距离(水深200m)、适时、可靠的电位测量。仪器结构简单,抗干扰能力强,测量准确。 |
| 关键词: 海底管道 保护电位 水声遥测 |
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| DEVELOPMENT OF CATHODIC PROTECTION POTENTIAL SURVEY EQUIPMENT FOR SUBMARINE PIPELINES |
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| Abstract: |
| This paper describes an acoustic potential survey system for cathodic protection of submarine pipeline which is set up by utilising acoustic telemetering technique. The structure principle and design of the system are introduced emphatically. The system comprises of a surface display unit and submarine monitors. The PPM-PTC(Pulse Phase Modulation-Pulse time Code) pattern is adopted to transmit the submarine data. The advantage is that the strong noise and serious undulation of sound signal in the sea could be overcome. Each submarine monitor contains dual reference comprising of both Ag/AgCl and Zn alloy. This system can be used to make remote, flexible and reliable potential measurements. The system is also simple in structure, interference resistant and accurrate. |
| Key words: Subsea pipeline, Protection potential, Acoustic telemetering |
