Distributed fiber optic chemical sensors for detection of corrosion in pipelines and structural components

Edgar A. Mendoza; Robert A. Lieberman; John D. Prohaska; Daniel P. Robinson

doi:10.1117/12.302519

15 March 1998 Distributed fiber optic chemical sensors for detection of corrosion in pipelines and structural components

Edgar A. Mendoza, Robert A. Lieberman, John D. Prohaska, Daniel P. Robinson

Author Affiliations +

Proceedings Volume 3398, Nondestructive Evaluation of Utilities and Pipelines II; (1998) https://doi.org/10.1117/12.302519
Event: Non-Destructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1998, San Antonio, TX, United States

Abstract

Distributed fiber optic sensors for use in the prevention of catastrophic corrosion failure when embedded in key structures such as high pressure gas and hazardous fluid pipeline delivery systems, potable water distribution piping, steel reinforced concrete structures, and steel and aluminum access structures are reported here. Its principle of operation is based on the intrinsic optical properties of a distributed fiber optic corrosion sensor (DIFOCS) whose entire length is sensitive to corrosion progression indicators, such as moisture and pH. The sensors can be used to locate precisely with a 10-cm spatial resolution where the moisture infiltration or corrosions damage has occurred. A low-cost, light weight, optoelectronics package can be used to provide timely warnings of corrosion induced moisture and pH changes into these 'smart' structures, significantly reducing the cost and complexity of periodic inspections. Optical transmission through the fibers can be monitored either periodically or continuously to determine the extent of corrosion.

Citation Download Citation

Edgar A. Mendoza, Robert A. Lieberman, John D. Prohaska, and Daniel P. Robinson "Distributed fiber optic chemical sensors for detection of corrosion in pipelines and structural components", Proc. SPIE 3398, Nondestructive Evaluation of Utilities and Pipelines II, (15 March 1998); https://doi.org/10.1117/12.302519

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