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Development of a Multimaterial Optical Fiber for Fully Distributed Magnetic Sensing Applications | IEEE Journals & Magazine | IEEE Xplore

Development of a Multimaterial Optical Fiber for Fully Distributed Magnetic Sensing Applications


Abstract:

A novel multimaterial fiber optic magnetic sensing design is presented and evaluated in this letter. The multimaterial optical fiber has demonstrated < 0.2\ n\epsilon ...Show More

Abstract:

A novel multimaterial fiber optic magnetic sensing design is presented and evaluated in this letter. The multimaterial optical fiber has demonstrated < 0.2\ n\epsilon sensitivity to external magnetic fields over a 2-m gauge length. Intended for immediate use in unconventional oil and gas (UOG) and measuring while drilling (MWD), this instrument could have wide-ranging subsurface sensing applications. Composed of fused silica cladding, internally distributed ferromagnetic nickel, and a series of fiber Bragg gratings, the multimaterial structure has been consistently drawn to over 1 km of length on a fiber draw tower. Due to the consistency of manufacturability and high magnetic sensitivities over long lengths, the proposed design may be considered a competitive magnetic sensor in UOG and MWD applications.
Published in: IEEE Sensors Letters ( Volume: 6, Issue: 1, January 2022)
Article Sequence Number: 2500104
Date of Publication: 23 December 2021
Electronic ISSN: 2475-1472

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