Fibre-optic sensing applications of a pair of long-period fibre gratings

被引：72

作者：

Han, YG ^{[1
]}

Lee, BH ^{[1
]}

Han, WT ^{[1
]}

Paek, UC ^{[1
]}

Chung, Y ^{[1
]}

机构：

[1] Kwangju Inst Sci & Technol, Dept Informat & Commun, Puk Gu, Kyangju 500712, South Korea

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2001年 / 12卷 / 07期

关键词：

long-period fibre gratings; bending sensor; transverse load sensor; chemical sensor; multichannel filters; suppression of sensitivity to temperature;

D O I：

10.1088/0957-0233/12/7/304

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We will discuss fibre-optic sensing applications with high resolution and sensitivity that are based on a pair of long-period fibre gratings (LPFGs) characterized by a fine interference fringe pattern and a narrow bandwidth. The dependence of the shift in resonance wavelength and change of peak depth of a pair of LPFGs pair on changes in the external environment such as the bending curvature, transverse load and surrounding index are investigated experimentally. The temperature sensitivity of the LPFGs was suppressed to 0.002 = degreesC(-1) in order to reduce the effect of temperature on the performance of the sensor.

引用

页码：778 / 781

页数：4

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