MATEC Web of Conferences
Volume 34, 20152015 2nd International Conference on Mechatronics and Mechanical Engineering (ICMME 2015)
|Number of page(s)||4|
|Section||Control theory and technology|
|Published online||11 December 2015|
A real-time non-contact monitoring method of subsea pipelines
1 College of Engineering, Ocean University of China, Qingdao, 266100, China
2 College of Information Engineering, Qingdao University, Qingdao, 266071, China
3 CNOOC Changzhou Paint & Coating Industry Research Institute Co.,Ltd, Tianjin, 300452, China
To monitoring the subsea pipeline in real-time, a special potentiometric sensor array and a potential prediction model are presented in this paper. Firstly, to measure the potential of seawater, a special potentiometric sensor array with Ag/AgCl all-solid-state reference electrodes is first developed in this paper. Secondly, according to the obtained distribution law of electric field intensities a prediction model of the pipeline potentials is developed. Finally, the potentiometric sensor array is applied in sink experiment and the prediction model is validated by the sink measurements. The maximum error for pipeline potential prediction model is 1.1 mV. The proposed non-contact monitoring method for subsea pipeline can predict the potential of sea pipeline in real-time, thus providing important information for further subsea pipeline maintenance.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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