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Proceedings Paper

A new vehicle axle detector for roadways based on fiber optic Mach-Zehnder interferometer
Author(s): Ying Wang; Qifeng Wu; Mudi Xiong; Rongxi He
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Paper Abstract

In this paper, the feasibility of a new vehicle axle detector for roadways based on fiber optic Mach-Zehnder interferometer was evaluated. This new vehicle axle detector used in this study has a relatively simple sensing principle. Thus the system can be composed of inexpensive and reliable components for the application to transportation system compared with the traditional vehicle axle detectors. The configuration and performance of the new vehicle axle detector was described. The process of conversion of the detected interferometer sensor signal into the weight of a vehicle axle was proposed. Simulating results show that the sensing response of the embedded fiber optic vehicle axle detector based on Mach-Zehnder interferometer can meet the requirements of a vehicle axle detector. In addition, a high-speed signal processing system was designed for the interferometer. The new vehicle axle detector has good potential as a basic sensor unit which can be widely used in ITS to detect the vehicle axle weight and identify the type of a vessel which passes over the detector.

Paper Details

Date Published: 5 December 2005
PDF: 6 pages
Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 60194F (5 December 2005); doi: 10.1117/12.634102
Show Author Affiliations
Ying Wang, Dalian Maritime Univ. (China)
Qifeng Wu, Dalian Maritime Univ. (China)
Mudi Xiong, Dalian Maritime Univ. (China)
Rongxi He, Dalian Maritime Univ. (China)


Published in SPIE Proceedings Vol. 6019:
Passive Components and Fiber-based Devices II
Yan Sun; Jianping Chen; Sang Bae Lee; Ian H. White, Editor(s)

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