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Proceedings Paper

Distributed fiber optic chemical sensors for detection of corrosion in pipelines and structural components
Author(s): Edgar A. Mendoza; Robert A. Lieberman; John D. Prohaska; Daniel P. Robinson
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Paper 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.

Paper Details

Date Published: 15 March 1998
PDF: 8 pages
Proc. SPIE 3398, Nondestructive Evaluation of Utilities and Pipelines II, (15 March 1998); doi: 10.1117/12.302519
Show Author Affiliations
Edgar A. Mendoza, Physical Optics Corp. (United States)
Robert A. Lieberman, Physical Optics Corp. (United States)
John D. Prohaska, Physical Optics Corp. (United States)
Daniel P. Robinson, Physical Optics Corp. (United States)

Published in SPIE Proceedings Vol. 3398:
Nondestructive Evaluation of Utilities and Pipelines II
Walter G. Reuter, Editor(s)

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