共 15 条
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
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.
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