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Research on a novel low modulus OFBG strain sensor for pavement monitoring.

Wang C, Hu Q, Lu Q - Sensors (Basel) (2012)

Bottom Line: PP with MA-G-PP is used to package OFBG.The fabrication techniques, the physical properties and the sensing properties were tested.The experimental results show that this kind of new OFBG strain sensor is a wonderful sensor with low modulus (about 1 GPa) and good sensitivity, which would meet the needs for monitoring some low modulus materials or structures.

View Article: PubMed Central - PubMed

Affiliation: School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. wangchuan@hit.edu.cn

ABSTRACT
Because of the fatigue and deflection damage of asphalt pavement, it is very important for researchers to monitor the strain response of asphalt layers in service under vehicle loads, so in this paper a novel polypropylene based OFBG (Optical Fiber Bragg Gratings) strain sensor with low modulus and large strain sensing scale was designed and fabricated. PP with MA-G-PP is used to package OFBG. The fabrication techniques, the physical properties and the sensing properties were tested. The experimental results show that this kind of new OFBG strain sensor is a wonderful sensor with low modulus (about 1 GPa) and good sensitivity, which would meet the needs for monitoring some low modulus materials or structures.

No MeSH data available.


Related in: MedlinePlus

Bare FBG directly embedded in structure.
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f3-sensors-12-10001: Bare FBG directly embedded in structure.

Mentions: According to the model given by Ou and Zhou [16], the strain transfer performance of the interface between the fiber and PP as shown in Figure 3 can also be expressed by the following equation:(2)λ2=2GPPEcrc2lnrPPrcwhere λ—strain transfer eigenvalue, Ec—modulus of OFBG, rc—radius of OFBG, Gpp—shear modulus of the matrix, rpp—radius of the matrix.


Research on a novel low modulus OFBG strain sensor for pavement monitoring.

Wang C, Hu Q, Lu Q - Sensors (Basel) (2012)

Bare FBG directly embedded in structure.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472812&req=5

f3-sensors-12-10001: Bare FBG directly embedded in structure.
Mentions: According to the model given by Ou and Zhou [16], the strain transfer performance of the interface between the fiber and PP as shown in Figure 3 can also be expressed by the following equation:(2)λ2=2GPPEcrc2lnrPPrcwhere λ—strain transfer eigenvalue, Ec—modulus of OFBG, rc—radius of OFBG, Gpp—shear modulus of the matrix, rpp—radius of the matrix.

Bottom Line: PP with MA-G-PP is used to package OFBG.The fabrication techniques, the physical properties and the sensing properties were tested.The experimental results show that this kind of new OFBG strain sensor is a wonderful sensor with low modulus (about 1 GPa) and good sensitivity, which would meet the needs for monitoring some low modulus materials or structures.

View Article: PubMed Central - PubMed

Affiliation: School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China. wangchuan@hit.edu.cn

ABSTRACT
Because of the fatigue and deflection damage of asphalt pavement, it is very important for researchers to monitor the strain response of asphalt layers in service under vehicle loads, so in this paper a novel polypropylene based OFBG (Optical Fiber Bragg Gratings) strain sensor with low modulus and large strain sensing scale was designed and fabricated. PP with MA-G-PP is used to package OFBG. The fabrication techniques, the physical properties and the sensing properties were tested. The experimental results show that this kind of new OFBG strain sensor is a wonderful sensor with low modulus (about 1 GPa) and good sensitivity, which would meet the needs for monitoring some low modulus materials or structures.

No MeSH data available.


Related in: MedlinePlus