Abstract
Technology such as Fiber Bragg Grating (FBG) sensors are widely accepted in almost all industries. FBG are being investigated for their applicability in other markets such as smart structures. Fiber optic sensors can also be used in many different applications. Fiber optic sensors are available in several types; among them, the Bragg grating sensor is being studied in this research. For this research work, the main focus was the use of fiber Bragg grating sensors for measuring strain. The key objective of this research; to determine the functionality of fiber Bragg grating sensors compared to that of conventional foil gauges. Fiber Bragg grating sensors were chosen for this research because they have a high potential for various uses in the monitoring of smart structures. The major incentives for this type of research are the current deterioration of civil structures in west Malaysia. The laboratory tests are being reported in this research work including tests of steel straps and an aluminum test specimen. In all the tests, strain was measured using the fiber Bragg grating sensors and compared to values from a conventional foil gauge. The results are being discussed in details. It was inferred that the use of fiber optic technology for the monitoring of civil structures is very promising and the future is sure to bring further advancements and improvements.
Highlights
New developments are happening daily in all areas of science
In the last ten to twenty years, optoelectronic technology has emerged in the fields of civil engineering, manufacturing and biomedicine, etc., in products such as fiber optic sensors[3]
Experimental work: The experimental work, consist of measuring of stain by electrical strain gauge and fiber Bragg grating sensor when bonded on the surface b) of Steel Straps and Aluminum Specimen
Summary
New developments are happening daily in all areas of science. As part of the 'Information Age' we "generate, process, store, display and transmit information in ever increasing amounts. Civil engineers have been collaborating with researchers in the field of optoelectronics, in efforts to develop fiber optic sensing and monitoring systems for civil engineering structures. Many advantages can be realized by using sensors to instrument a structure for long-term remote monitoring. There can be long-term savings in labour, money and time; problems can be detected before they become too severe to repair ; and the software used with the monitoring system can be Corresponding Author: Bashir Ahmed Tahir, Fiber Optics and Photonics Research Laboratory, Department of Physics, Faculty of Science, University Technology, Malaysia, Johor, Malaysia, Tel: +607-5534110 Fax: +607-5566161. The future vision for the use of fiber optic sensors in civil engineering includes the development of 'smart structures'. All of the test specimens were instrumented with bondable Bragg grating sensors and foil gauges for comparison
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