Experimental study of measuring strain by fiber optic sensor used in civil engineering structures

1996 ◽  
Author(s):  
KaiDe Zha ◽  
Xiaoping Zheng ◽  
Yanbiao Liao ◽  
Jiuzhu Qi ◽  
Peigang Wu
Keyword(s):  
Experimental Study ◽  
Fiber Optic ◽  
Civil Engineering ◽  
Fiber Optic Sensor ◽  
Engineering Structures ◽  
Optic Sensor ◽  
Civil Engineering Structures

Study and Application of Health Monitoring by Fiber Optic Sensors in Civil Engineering

2003 ◽  
Author(s):  
Hong-Nan Li ◽  
Dong-Sheng Li ◽  
Su-Yan Wang
Keyword(s):  
Health Monitoring ◽  
Fiber Optic ◽  
Civil Engineering ◽  
Fiber Optic Sensor ◽  
Current Status ◽  
Fibre Optic ◽  
Engineering Structures ◽  
Monitoring Method ◽  
Structural Health ◽  
Potential Damage

In civil engineering, the smart health monitoring method by use of fiber optic sensor is a new approach that evaluates the structural health situation. The current status in applications of fibre optic structural health monitoring in civil engineering structures with a brief introduction of the advantages, basic principles of fibre optic sensors is described in this paper. Leakage detection and potential damage to pipelines are emphasized. Finally, existing problems for packing and implementing fibre optic sensors in structures are discussed.

Fibre optic sensors in civil engineering structures

2000 ◽  
Vol 27 (5) ◽  
pp. 880-889 ◽  
Author(s):  
R C Tennyson ◽  
T Coroy ◽  
G Duck ◽  
G Manuelpillai ◽  
P Mulvihill ◽  
...  
Keyword(s):  
Civil Engineering ◽  
Concrete Structures ◽  
Local Strain ◽  
Bragg Gratings ◽  
Fibre Optic ◽  
Engineering Structures ◽  
Arbitrary Length ◽  
Fibre Optic Sensor ◽  
Optic Sensor ◽  
Civil Engineering Structures

This paper presents an overview of the development and application of ISIS fibre optic sensor (FOS) technology by the University of Toronto Institute for Aerospace Studies and Department of Electrical and Computer Engineering. The primary focus of this technology has involved the use of fibre Bragg gratings (FBGs) to measure strain and temperature in concrete structures and fibre reinforced plastic (FRP) overwraps applied to concrete structures. A brief review of existing fibre optic sensor configurations and the advantages of using FOS compared to other strain sensors is first presented. Subsequently, the development of new sensor concepts such as a long gauge of arbitrary length, a distributed gauge for measuring local strain gradients, and multiple FBGs on a single fibre optic cable are discussed, with examples of their application to civil engineering structures. In addition, the specialized instruments under development that are essential for obtaining strain information from these sensors are also described. Finally, the issue of wireless remote monitoring of FOS systems is addressed.Key words: fibre optic sensors, Bragg gratings, civil engineering structures, instrumentation.

Angular displacement fiber-optic sensor: theoretical and experimental study

1995 ◽  
Vol 34 (28) ◽  
pp. 6489 ◽  
Author(s):  
Nathalie Mancier ◽  
Ayoub Chakari ◽  
Patrick Meyrueis ◽  
Michel Clément
Keyword(s):  
Experimental Study ◽  
Fiber Optic ◽  
Angular Displacement ◽  
Fiber Optic Sensor ◽  
Optic Sensor
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