Detection of Internal Metal Loss in Steel Pipes and Storage Tanks via Magnetic-Based Fiber Optic Sensor

Sensors

Paul Rostron¹  Oleg Shiryayev²  Nader Vahdati²  Safieh Almahmoud² 

[1] Chemistry Department, Khalifa University of Science and Technology, P.O. Box 2533, Abu Dhabi, UAE;Department of Mechanical Engineering, Khalifa University of Science and Technology, P.O. Box 2533, Abu Dhabi, UAE;

关键词: corrosion sensor;    fiber optics;    magnets;    internal corrosion;    pipelines;    fiber bragg gratings;   

DOI  :  10.3390/s18030815

来源: DOAJ

【 摘 要 】

A monitoring solution was developed for detection of material loss in metals such as carbon steel using the force generated by permanent magnets in addition to the optical strain sensing technology. The working principle of the sensing system is related to the change in thickness of a steel plate, which typically occurs due to corrosion. As thickness decreases, the magnetostatic force between the magnet and the steel structure also decreases. This, in turn, affects the strain measured using the optical fiber. The sensor prototype was designed and built after verifying its sensitivity using a numerical model. The prototype was tested on steel plates of different thicknesses to establish the relationship between the metal thickness and measured strain. The results of experiments and numerical models demonstrate a strong relationship between the metal thickness and the measured strain values.

【 授权许可】

Unknown