25 October 2016 Pressure sensor for Weight-In-Motion measurement based on fiber loop ring-down spectroscopy
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Proceedings Volume 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage; 101580U (2016) https://doi.org/10.1117/12.2246819
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
In order to resolve the disturbance of external perturbation in Weight-In-Motion (WIM) measurement by traditional methods, a novel pressure sensor for WIM of vehicles based on fiber ring-down spectroscopy is proposed here. A micro-bending sensing head is designed and its working principle is discussed in this paper. The fiber loop ring-down (FLRD) system reveals that the sensing forces applied to the sensing head can be obtained by measuring the ring-down time. Meanwhile, the velocity of vehicles is measured by analyzing two ring-down spectrums in this scheme. Experiment results show that the precision of velocity of vehicles is good and the sensor has a linear response to the applied force.
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Songlin Yang, Chi Ruan, Yuntao Wang, "Pressure sensor for Weight-In-Motion measurement based on fiber loop ring-down spectroscopy", Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101580U (25 October 2016); doi: 10.1117/12.2246819; https://doi.org/10.1117/12.2246819
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