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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

Effect of shear module on strain transfer error coefficient.
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f4-sensors-12-10001: Effect of shear module on strain transfer error coefficient.

Mentions: The shear modulus of PP ranges from 0.32 to 0.75 GPa, and the diameter of sensor is 5∼20 mm. Ec is about 70 GPa and rc is about 6.25 × 10−2 mm, the lf is 10 mm. The relationship of η and Gpp and rpp is shown in Figures 4 and 5, respectively.


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

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

Effect of shear module on strain transfer error coefficient.
© Copyright Policy
Related In: Results  -  Collection

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

f4-sensors-12-10001: Effect of shear module on strain transfer error coefficient.
Mentions: The shear modulus of PP ranges from 0.32 to 0.75 GPa, and the diameter of sensor is 5∼20 mm. Ec is about 70 GPa and rc is about 6.25 × 10−2 mm, the lf is 10 mm. The relationship of η and Gpp and rpp is shown in Figures 4 and 5, respectively.

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