Micro-displacement or bending measurement using a long-period fibre grating in a self-referenced fibre optic intensity sensor

被引：35

作者：

Baptista, JM

Santos, SF

Rego, G

Frazao, O

Santos, JL

机构：

[1] INESC Porto, Unidade Optoelect & Sistemas Elect, P-4169007 Oporto, Portugal

[2] Inst Super Engn Porto, Dept Electrotecn, P-4200072 Oporto, Portugal

[3] Escola Super Tecnol & Gestao, Inst Politecn Viana Castelo, P-4900348 Viana Do Castelo, Portugal

[4] Univ Porto, Fac Ciencias, Dept Fis, P-4169007 Oporto, Portugal

来源：

OPTICS COMMUNICATIONS | 2006年 / 260卷 / 01期

关键词：

long-period fibre gratings; optical fibre sensors; optical fibre intensity sensors;

D O I：

10.1016/j.optcom.2005.10.004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The measurement of micro-displacement or bending using a long-period fibre grating (LPG) in a self-referenced fibre optic intensity sensor is presented. The sensing head is based on a LPG whose attenuation peak changes as a function of its micro-displacement or bending and the fibre optic intensity sensor is referenced in frequency. Two other LPGs were used as rejection filters. located at the output of the optical source to shorten its spectral width. The implemented experimental set-up is described and, the results are presented being considered the measurement range and the intrinsic resolution. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：8 / 11

页数：4

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