A lateral pressure sensor using a fiber Bragg grating

被引：99

作者：

Sheng, HJ ^{[1
]}

Fu, MY

Chen, TC

Liu, WF

Bor, SS

机构：

[1] Natl Def Univ, Chung Cheng Inst Technol, Dept Elect Engn, Taipei 335, Taiwan

[2] Feng Chia Univ, Dept Elect Engn, Taichung 407, Taiwan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2004年 / 16卷 / 04期

关键词：

fiber Bragg grating (FBG); fiber sensor; polymer; pressure;

D O I：

10.1109/LPT.2004.824998

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：

This study develops an all-optical high-sensitivity pressure sensor based on fiber Bragg grating (FBG) encapsulated in a polymer-half-filled metal cylinder. The polymer can be pressurized along one radial direction only, and responds to an axial force on the round plate, creating an axial stretched-strain on the FBG. The measured pressure sensitivity is 2.2 x 10(-2) MPa-1, which is 10900 times higher than for a bare FBG. Owing to its good linearity, this sensor can be applied to measure medium pressure, liquid level, and depth underwater.

引用

页码：1146 / 1148

页数：3

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