Fiber optic sensor for hydrocarbon leak detection and localization based on transmission/reflection analysis

Vasilii V. Spirin; Rosa Lopez; Mikhail G. Shlyagin; Serguei V. Miridonov; I. Marquez; Evgueni Anatolevich Kuzin; Georgina Beltran-Perez; Pieter L. Swart

doi:10.1117/12.472639

27 June 2002 Fiber optic sensor for hydrocarbon leak detection and localization based on transmission/reflection analysis

Vasilii V. Spirin, Rosa Lopez, Mikhail G. Shlyagin, Serguei V. Miridonov, I. Marquez, Evgueni Anatolevich Kuzin, Georgina Beltran-Perez, Pieter L. Swart

Author Affiliations +

Proceedings Volume 4694, Smart Structures and Materials 2002: Smart Sensor Technology and Measurement Systems; (2002) https://doi.org/10.1117/12.472639
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

A novel type of distributed fiber optic sensor for petroleum hydrocarbon leak detection based on the measurement of transmitted and Rayleigh backscattered power is presented. The sensor structure includes a sensitive polymer, which reversibly expands in hydrocarbon presence and induces the bending losses in the fiber. The location of the loss region is determined from unique relationships between normalized transmitted and Rayleigh backscattered powers for different positions of the disturbance along the test fiber. The localization of a strong disturbance with an estimated accuracy of +/- 1 m along a 2.844 km-length single-mode fiber was demonstrated.

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Vasilii V. Spirin, Rosa Lopez, Mikhail G. Shlyagin, Serguei V. Miridonov, I. Marquez, Evgueni Anatolevich Kuzin, Georgina Beltran-Perez, and Pieter L. Swart "Fiber optic sensor for hydrocarbon leak detection and localization based on transmission/reflection analysis", Proc. SPIE 4694, Smart Structures and Materials 2002: Smart Sensor Technology and Measurement Systems, (27 June 2002); https://doi.org/10.1117/12.472639

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