Novel optical fiber current sensor based on magnetic fluid

被引：49

作者：

Hu, Tao ^{[1
]}

Zhao, Yong ^{[2
]}

Li, Xing ^{[2
]}

Chen, Jingjing ^{[2
]}

Lue, Zhiwei ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Automat Testing & Control, Harbin 150001, Peoples R China

[2] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110004, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2010年 / 8卷 / 04期

关键词：

FIELD;

D O I：

10.3788/COL20100804.0392

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel fiber optic Fabry-Perot (F-P) current sensor is developed based on magnetic fluid as the medium in F-P interference cavity. A signal demodulation method based on slanted fiber Bragg grating (FBG) wavelength measurement system is proposed. Theory and principle of electromagnetic-controlled refractive index of the magnetic fluid is described; as well as the structure of the sensor system. Preliminary experiments are carried out; and the results indicate that there is a fairly good linearity of the measurement characteristic. The thickness of magnetic fluid film and initial concentration will affect the measurement results.

引用

页码：392 / 394

页数：3

共 10 条

[1] Tilt measurement sensor
Baltag, O
Costandache, D
Salceanu, A
[J]. SENSORS AND ACTUATORS A-PHYSICAL, 2000, 81 (1-3) : 336 - 339
[2] Calculation of various physics constants in heterogenous substances I Dielectricity constants and conductivity of mixed bodies from isotropic substances
Bruggeman, DAG
[J]. ANNALEN DER PHYSIK, 1935, 24 (07) : 636 - 664
[3] The study of a magnetic fluid-based sensor
Cotae, C
Baltag, O
Olaru, R
Calarasu, D
Costandache, D
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 201 : 394 - 397
[4] DONG C, 2006, P SPIE, V6280
[5] Interrogation of fibre Bragg gratings with a tilted fibre Bragg grating
Jáuregui, C
López-Higuera, JM
[J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 2004, 15 (08) : 1596 - 1600
[6] Liu T, 2008, CHIN OPT LETT, V6, P195
[7] Magnetic liquid sensor for very low gas flow rate with magnetic flow adjusting possibility
Popa, NC
Potencz, I
Anton, I
Vekas, L
[J]. SENSORS AND ACTUATORS A-PHYSICAL, 1997, 59 (1-3) : 307 - 310
[8] Yang S. Y., 2000, MAGN GIDRODIN, V36, P19
[9] YANG W, 2008, P 11 INT C EL MACH S, P4119
[10] Response of self-assembly for magnetite nanocrystal in magnetic fluid under an applied magnetic field
Zou, Yun
Nie, Yiyou
Di, Ziyun
Zhang, Dongchen
Sang, Minghuang
Chen, Xianfeng
[J]. CHINESE OPTICS LETTERS, 2008, 6 (10) : 767 - 769

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