Magnetostrictive composite-fiber Bragg grating (MC-FBG) magnetic field sensor

被引：65

作者：

Liu, Heliang ^{[1
]}

Or, Siu Wing ^{[1
]}

Tam, Hwa Yaw ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2012年 / 173卷 / 01期

关键词：

Fiber Bragg grating; Long-distance distributed sensing; Magnetic field sensor; Magnetostrictive composite; Terfenol-D; DYNAMIC MAGNETOMECHANICAL PROPERTIES;

D O I：

10.1016/j.sna.2011.11.005

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：

We report a magnetostrictive composite-fiber Bragg grating (MC-FBG) magnetic field sensor based on the direct coupling of the magnetostrictive strain in an epoxy-bonded Terfenol-D particle pseudo-1-3 MC actuator with a FBG strain sensor. The MC-FBG sensor exhibits a large and fairly linear quasistatic peak wavelength shift of 0.68 nm under an applied magnetic field of 146 kA/m and a wide extrinsic magneto-optical signal frequency range up to at least 60 kHz. These quasistatic and dynamic characteristics, together with the electromagnetic interference immunity, large-scale multiplexing potential and self-reference capability, enable the application of the MC-FBG sensor in distributed magnetic field sensing over long distances. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：122 / 126

页数：5

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