Multi-point strain measurement of composite-bonded concrete materials with a RF-band FMCW multiplexed FBG sensor array

被引：17

作者：

Chan, PKC ^{[1
]}

Jin, W

Lau, KT

Zhou, LM

Demokan, MS

机构：

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

[2] Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2000年 / 87卷 / 1-2期

关键词：

fiber Bragg grating sensors; frequency division multiplexing; glass fiber composites; strain measurement;

D O I：

10.1016/S0924-4247(00)00462-3

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：

We report the use of fiber Bragg grating (FBG) sensors for strain measurement in a rectangular composite-bonded concrete beam. Three FBGs are multiplexed by using a frequency modulated continuous wave (FMCW) technique in the RF-band and embedded at three different locations at the interface between the composite reinforcement and surfaces of the concrete beam specimen. Strain measurements were conducted with the concrete beam specimen subjected to a three-point bending test. The strains measured from the FBG sensors are compared with that from the external bonded strain gauges. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：19 / 25

页数：7

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