Liquid-level sensor based on tapered chirped fiber grating

被引：12

作者：

Dong XiaoWei ^{[1
]}

Liu WenKai ^{[1
]}

Zhao RuiFeng ^{[2
]}

机构：

[1] N China Univ Technol, Beijing 100144, Peoples R China

[2] Beijing Jiaotong Univ, Inst Lightwave Technol, Beijing 100044, Peoples R China

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2013年 / 56卷 / 02期

基金：

中国国家自然科学基金;

关键词：

liquid-level sensor; chirped fiber grating; tapered fiber;

D O I：

10.1007/s11431-012-5095-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An optic-fiber liquid-level sensor based on tapered chirped grating was proposed and demonstrated experimentally. With a properly designed column buoy hung to chain wheel, the liquid-level variation was converted to axial strain, which made the reflection spectrum of the tapered chirped grating narrowed or broadened correspondingly. And a high-sensitive liquid-level sensor was obtained by monitoring the bandwidth variation of the tapered chirped grating. Compared with traditional absolute wavelength or power detection, this special monitoring technique based on bandwidth modulation makes the liquid-level sensor insensitive to spatially uniform temperature variations and power fluctuations from down-lead or light source.

引用

页码：471 / 474

页数：4

共 12 条

[1] Self-Heated Optical Fiber Sensor Array for Cryogenic Fluid Level Sensing [J].

Chen, Tong ;

Maklad, Mokhtar ;

Swinehart, Philip R. ;

Chen, Kevin P. .

IEEE SENSORS JOURNAL, 2011, 11 (04) :1051-1052

[2] Detection of liquid-level variation using a side-polished fiber Bragg grating [J].

Dong Xiaowei ;

Zhao Ruifeng .

OPTICS AND LASER TECHNOLOGY, 2010, 42 (01) :214-218

[3] Fiber grating spectra [J].

Erdogan, T .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 1997, 15 (08) :1277-1294

[4] Implementation and Characterization of Liquid-Level Sensor Based on a Long-Period Fiber Grating Mach-Zehnder Interferometer [J].

Fu, Hongyan ;

Shu, Xuewen ;

Zhang, Aping ;

Liu, Weisheng ;

Zhang, Lin ;

He, Sailing ;

Bennion, Ian .

IEEE SENSORS JOURNAL, 2011, 11 (11) :2878-2882

[5] Temperature-insensitive fiber Bragg grating liquid-level sensor based on bending cantilever beam [J].

Guo, T ;

Zhao, QD ;

Dou, QY ;

Zhang, H ;

Xue, LF ;

Huang, GL ;

Dong, XY .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (11) :2400-2402

[6]

Jose E A L, 2011, IEEE PHOTONIC TECH L, V23, P1826

[7]

Jose M, 2004, IEEE PHOTONIC TECH L, V16, P2631

[8]

Kyung R S, 2009, SENSOR ACTUAT A-PHYS, V152, P248

[9] Lateral polishing of bends in plastic optical fibres applied to a multipoint liquid-level measurement sensor [J].

Lomer, M. ;

Arrue, J. ;

Jauregui, C. ;

Aiestaran, P. ;

Zubia, J. ;

Lopez-Higuera, J. M. .

SENSORS AND ACTUATORS A-PHYSICAL, 2007, 137 (01) :68-73

[10] Highly sensitive liquid-level sensor based on etched fiber Bragg grating [J].

Yun, Binfeng ;

Chen, Na ;

Cui, Yiping .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2007, 19 (21-24) :1747-1749

← 1 2 →