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Proceedings Paper

Pressure sensor for Weight-In-Motion measurement based on fiber loop ring-down spectroscopy
Author(s): Songlin Yang; Chi Ruan; Yuntao Wang
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Paper 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.

Paper Details

Date Published: 25 October 2016
PDF: 6 pages
Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101580U (25 October 2016); doi: 10.1117/12.2246819
Show Author Affiliations
Songlin Yang, Xi'an Institute of Optics and Precision Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Chi Ruan, Xi'an Institute of Optics and Precision Mechanics (China)
Yuntao Wang, Xi'an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 10158:
Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage

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