Fiber optic vibration sensor-based smart civil structures

被引：0

作者：

Leng, JS ^{[1
]}

Asundi, AK ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

ADVANCED PHOTONIC SENSORS AND APPLICATIONS | 1999年 / 3897卷

关键词：

smart civil structure; statistical-mode fiber optic sensor; E-core two-mode fiber optic sensor; vibration monitoring;

D O I：

10.1117/12.369347

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：

Two kinds of fiber optic vibration sensors for civil structure vibration monitoring are proposed in this paper. The first is based on the detection of spatial mode speckle of a multi-mode optical fiber. A multi-mode optical fiber, diameter is 200/230 mu m, is used in the present experiment. The second method uses an e-core two-mode optical fiber. The experiment on a composite beam with an embedded statistical fiber optic sensor and surface mounted e-core two-mode fiber optic sensor are demonstrated. The experimental results show that the two types of the fiber optic vibration sensors have higher sensitivity compared to piezoelectric sensor along with other benefits of fiber optic sensor, including lower cost.

引用

页码：505 / 510

页数：4

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