Results of a portable fiber optic weigh-in-motion system

Experimental results on a portable, low-speed fiber-optic weigh-in-motion system are described that demonstrate the applicability of fiber-optic-based sensors in transportation, defense, and law enforcement applications where accurate weight determination of moving vehicles is necessary. Results are given on the systems' dynamic range (0.1 - 30 metric tons), velocity range (up to 5 km/h), accuracy error (0.5 - 3.0%), and repeatability. Also included in the paper is a discussion of the sources of error associated with low speed weigh-in-motion systems and methods of minimizing these errors for practical deployment.© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.