An interferometric radar for non-contact measurement of deflections on civil engineering structures: laboratory and full-scale tests

被引：152
作者：
Gentile, Carmelo [1 ]
Bernardini, Giulia [1 ]
机构：
[1] Politecn Milan, Dept Struct Engn, I-20133 Milan, Italy
来源：
STRUCTURE AND INFRASTRUCTURE ENGINEERING | 2010年 / 6卷 / 05期
关键词：
ambient vibration testing; bridge; interferometry; output-only modal analysis; radar; GPS;
D O I：
10.1080/15732470903068557
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Recent progress in radar techniques and systems has led to the development of a microwave interferometer, potentially suitable for non-contact vibration monitoring of civil engineering structures. The main characteristic of the new radar system, named IBIS-S, is the possibility of simultaneously measuring the (static or dynamic) displacement at several points of a structure with high sensitivity. The paper first describes the technical characteristics of the microwave interferometer and the results of laboratory tests carried out to evaluate the actual displacement sensitivity of the equipment. Subsequently, the application of the sensor to the measurement of ambient vibration response on a concrete bridge is presented and discussed.
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收藏
页码：521 / 534
页数：14
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