Fiber optic weigh-in-motion sensor: correlation between modeling and practical characterization

Stephane R. Teral; Simon J. Larcher; Jean-Marie Caussignac; Mohamed Barbachi

doi:10.1117/12.240881

30 May 1996 Fiber optic weigh-in-motion sensor: correlation between modeling and practical characterization

Stephane R. Teral, Simon J. Larcher, Jean-Marie Caussignac, Mohamed Barbachi

Proceedings Volume 2718, Smart Structures and Materials 1996: Smart Sensing, Processing, and Instrumentation; (1996) https://doi.org/10.1117/12.240881
Event: 1996 Symposium on Smart Structures and Materials, 1996, San Diego, CA, United States

Abstract

This paper shows the way to turn a defect inherent to single-mode fiber, namely birefringence, into a prime quality for a powerful and reliable sensor. The latter is entirely devoted to weigh- in-motion (WIM) applications extended to complete active traffic management systems. After a brief description of the sensor and its principle of operation, the theoretical model is developed. Then, a full characterization made in both static and dynamic conditions is presented. The results obtained illustrate how it is difficult to interpret a weight measured in dynamic conditions and correlate the value with the static weight.

Citation Download Citation

Stephane R. Teral, Simon J. Larcher, Jean-Marie Caussignac, and Mohamed Barbachi "Fiber optic weigh-in-motion sensor: correlation between modeling and practical characterization", Proc. SPIE 2718, Smart Structures and Materials 1996: Smart Sensing, Processing, and Instrumentation, (30 May 1996); https://doi.org/10.1117/12.240881

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