Enhancement of measurement accuracy in fiber Bragg grating sensors by using digital signal processing

被引：54

作者：

Chan, CC ^{[1
]}

Jin, W ^{[1
]}

Demokan, MS ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 1999年 / 31卷 / 04期

关键词：

fiber optic sensors; optical fiber measurement applications; strain measurement;

D O I：

10.1016/S0030-3992(99)00071-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Wavelength detection accuracy in fiber Bragg grating (FBG) sensors can be increased by use of digital signal processing after photo-detection. Finite impulse response and infinite impulse response algorithms were implemented and used to improve the wavelength detection accuracy of peak detection and time-zero-crossing techniques. The wavelength detection resolution can be improved by an order of magnitude compared with that obtained directly from an optical spectrum analyzer/tunable laser. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：299 / 307

页数：9

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