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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

Strain of asphalt beams in static load test: (a) Theoretical strain; (b) Actual strain.
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Related In: Results  -  Collection

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f17-sensors-12-10001: Strain of asphalt beams in static load test: (a) Theoretical strain; (b) Actual strain.

Mentions: Measured and actual strains are drawn in Figure 17. From the results we can say that measured strain matches linearly with the actual one. The correlation coefficient was 0.9916, although maybe due to the position of the sensors in the specimens, the two fitted equations show a small difference.


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

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

Strain of asphalt beams in static load test: (a) Theoretical strain; (b) Actual strain.
© Copyright Policy
Related In: Results  -  Collection

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

f17-sensors-12-10001: Strain of asphalt beams in static load test: (a) Theoretical strain; (b) Actual strain.
Mentions: Measured and actual strains are drawn in Figure 17. From the results we can say that measured strain matches linearly with the actual one. The correlation coefficient was 0.9916, although maybe due to the position of the sensors in the specimens, the two fitted equations show a small difference.

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