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Detection, visualization, quantification, and warning of pipe corrosion using distributed fiber optic sensors
Automation in Construction ( IF 10.3 ) Pub Date : 2021-09-15 , DOI: 10.1016/j.autcon.2021.103953
Xiao Tan 1 , Liang Fan 2 , Ying Huang 3 , Yi Bao 1
Affiliation  

This paper presents a distributed monitoring approach for detection, visualization, quantification, and warning for pipe corrosion using a single-mode telecommunication-grade fiber optic cable as a distributed sensor. The distributed sensor can be deployed on the surface of a pipe to measure corrosion along the pipe based on optical frequency domain reflectometry. To validate this distributed pipe corrosion monitoring approach, steel pipes were immersed in sodium chloride solution (concentration: 3.5 wt%) for corrosion tests. Strain distributions were measured and used to detect and map corrosion along the pipe. A meso-scale analytical model was developed to link the measured strains to the mass loss of pipe under corrosion. The effects of cable thickness, spatial resolution, and deployment pattern on corrosion assessment were investigated systematically. A threshold-based warning method is proposed based on the unique sensor data.



中文翻译:

使用分布式光纤传感器检测、可视化、量化和警告管道腐蚀

本文提出了一种分布式监测方法,使用单模电信级光纤电缆作为分布式传感器,对管道腐蚀进行检测、可视化、量化和警告。分布式传感器可以部署在管道表面,基于光频域反射测量沿管道的腐蚀。为了验证这种分布式管道腐蚀监测方法,将钢管浸入氯化钠溶液(浓度:3.5 wt%)中进行腐蚀测试。应变分布被测量并用于检测和绘制沿管道的腐蚀。开发了一个中尺度分析模型,将测量的应变与腐蚀下管道的质量损失联系起来。电缆厚度、空间分辨率、并系统地研究了腐蚀评估的部署模式。提出了一种基于独特传感器数据的基于阈值的预警方法。

更新日期:2021-09-15
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