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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

Compressive test results of concrete column: (a) Comparison of the developed sensor and resistance gauge; (b) Load-strain curve of three load-unload cycle; (c) Load-strain curve to failure; (d) Wavelength-load curve of the developed sensor.
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f14-sensors-12-10001: Compressive test results of concrete column: (a) Comparison of the developed sensor and resistance gauge; (b) Load-strain curve of three load-unload cycle; (c) Load-strain curve to failure; (d) Wavelength-load curve of the developed sensor.

Mentions: Axial compressive test is performed to concrete column embedded with the proposed sensor to monitor strain under different load. In order to comparison, resistance strain gauges are also stuck on the lateral sides of the concrete column as shown in Figure 13. The test using load instrumentation were conducted obtain force of three load-unload cycle in elastic stage and the course to failure. The results are shown in Figure 14.


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

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

Compressive test results of concrete column: (a) Comparison of the developed sensor and resistance gauge; (b) Load-strain curve of three load-unload cycle; (c) Load-strain curve to failure; (d) Wavelength-load curve of the developed sensor.
© Copyright Policy
Related In: Results  -  Collection

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

f14-sensors-12-10001: Compressive test results of concrete column: (a) Comparison of the developed sensor and resistance gauge; (b) Load-strain curve of three load-unload cycle; (c) Load-strain curve to failure; (d) Wavelength-load curve of the developed sensor.
Mentions: Axial compressive test is performed to concrete column embedded with the proposed sensor to monitor strain under different load. In order to comparison, resistance strain gauges are also stuck on the lateral sides of the concrete column as shown in Figure 13. The test using load instrumentation were conducted obtain force of three load-unload cycle in elastic stage and the course to failure. The results are shown in Figure 14.

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