PRACTICAL FIBEROPTIC BRAGG GRATING STRAIN-GAUGE SYSTEM

被引：107

作者：

MELLE, SM ^{[1
]}

LIU, KX ^{[1
]}

MEASURES, RM ^{[1
]}

机构：

[1] UNIV TORONTO, INST AEROSP STUDIES, DOWNSVIEW M3H 5T6, ON, CANADA

来源：

APPLIED OPTICS | 1993年 / 32卷 / 19期

关键词：

FIBER OPTICS; FIBEROPTIC SENSORS; BRAGG GRATINGS; STRAIN SENSORS; SMART STRUCTURES;

D O I：

10.1364/AO.32.003601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A fiber-optic strain gauge system for use in structural monitoring and smart-structure applications is described. The strain gauge uses a fiber-optic Bragg grating sensor to measure strain and a passive, wavelength demodulation system to determine the wavelength of the narrow-band, backreflected spectrum from the grating sensor. The fiber-optic strain gauge system permits the measurement of both static and dynamic strains with a noise-limited resolution of 0.44 microstrain/square-root Hz, a measurement dynamic range of 27.8 dB, and a bandwidth of 250 Hz.

引用

页码：3601 / 3609

页数：9

共 13 条

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