Embedded intrinsic Fabry-Perot optical fiber sensors in cement concrete structures

1996 ◽  
Author(s):  
Ki S. Kim ◽  
Jae-Wook Yoo ◽  
Seung Kwan Kim ◽  
Byoung Yoon Kim
Keyword(s):  
Optical Fiber ◽  
Concrete Structures ◽  
Optical Fiber Sensors ◽  
Cement Concrete ◽  
Fiber Sensors ◽  
Fabry Perot

scholarly journals Sol-Gel Coating Membranes for Optical Fiber Sensors for Concrete Structures Monitoring

Coatings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1245
Author(s):  
Bárbara R. Gomes ◽  
Rui Araújo ◽  
Tatiana Sousa ◽  
Rita B. Figueira
Keyword(s):  
Optical Fiber ◽  
Sol Gel ◽  
Concrete Structures ◽  
Optical Fiber Sensors ◽  
Rational Approach ◽  
Simple Method ◽  
Fiber Sensors ◽  
Chemical Reagents ◽  
Current State ◽  
Gel Membranes

The use of advanced sensing devices for concrete and reinforced concrete structures (RCS) is considered a rational approach for the assessment of repair options and scheduling of inspection and maintenance strategies. The immediate benefits are cost reduction and a reliable prevention of unpredictable events. The use of optical fiber sensors (OFS) for such purposes has increased considerably in the last few years due to their intrinsic advantages. In most of the OFS, the chemical transducer consists of immobilized chemical reagents placed in the sensing region of the optical sensor by direct deposition or by encapsulation in a polymeric matrix. The choice of the support matrix impacts directly on the performance of the OFS. In the last two decades, the development of OFS functionalized with organic–inorganic hybrid (OIH) sol–gel membranes have been reported. Sol–gel route is considered a simple method that offers several advantages when compared to traditional synthesis processes, allowing to obtain versatile materials with unique chemical and physical properties, and is particularly valuable in the design of OIH materials. This review will provide an update of the current state-of-the-art of the OFS based on OIH sol-gel materials for concrete and RCS since 2016 until mid-2021. The main achievements in the synthesis of OIH membranes for deposition on OFS will be discussed. The challenges and future directions in this field will also be considered, as well as the main limitations of OFS for RCS monitoring.

Optical fiber sensors based on Fabry-Perot multilayer coatings

2010 ◽  
Vol 8 (S1) ◽  
pp. 189-191 ◽  
Author(s):  
杨明红 Minghong Yang ◽  
孙艳 Yan Sun ◽  
李小兵 Xiaobin Li ◽  
姜德生 Desheng Jiang
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensors ◽  
Multilayer Coatings ◽  
Fiber Sensors ◽  
Fabry Perot
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