Development of fiber optic extensometers

被引：0

作者：

Vulliet, L ^{[1
]}

Casanova, N ^{[1
]}

Inaudi, D ^{[1
]}

Osa-Wyser, A ^{[1
]}

Vurpillot, S ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Lausanne, Switzerland

来源：

FOURTEENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND FOUNDATION ENGINEERING, VOL 3 | 1997年

关键词：

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A new displacement monitoring system based on low coherence interferometry using standard telecommunication fibers is presented. The measuring system is especially developed for the needs and conditions encountered in the field of civil engineering. The system features a precision of 10 mu m to 100 mu m (depending on the sensor type) over a measuring length up to 100 m, an operational range of 70 mm, stability over long periods (at least two years) and insensitivity to ageing of the fiber and connector losses. The results of laboratory and field tests show that fiber optic extensometers are promising tools for the long term monitoring and survey of civil engineering structures.

引用

页码：1527 / 1530

页数：4

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