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

被引：6

作者：

Hileman, Zachary ^{[1
]}

Homa, Daniel ^{[1
]}

Ma, Lingmei ^{[2
]}

Dong, Bo ^{[2
]}

Martin, Eileen ^{[3
]}

Pickrell, Gary ^{[1
,4
]}

Wang, Anbo ^{[2
,4
]}

机构：

[1] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA

[2] Sentek Instrument LLC, Virginia Tech Corp Res Ctr, Blacksburg, VA 24061 USA

[3] Virginia Tech, Dept Math, Blacksburg, VA 24061 USA

[4] Virginia Tech, Ctr Photon & Technol, Blacksburg, VA 24061 USA

来源：

IEEE SENSORS LETTERS | 2022年 / 6卷 / 01期

关键词：

Magnetic sensors; distributed acoustic sensing (DAS); fiber optics; magnetic sensors; magnetostriction; FIELD;

D O I：

10.1109/LSENS.2021.3137640

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel multimaterial fiber optic magnetic sensing design is presented and evaluated in this letter. The multimaterial optical fiber has demonstrated <0.2 n is an element of 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.

引用

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