Weighing scales – Self-positioning – Electrical current generating or modifying
Patent
1992-04-02
1993-11-09
Fuller, Benjamin R.
Weighing scales
Self-positioning
Electrical current generating or modifying
177 1, 177132, G01G 314, G01G 1952
Patent
active
052605205
ABSTRACT:
Apparatus for weighing a vehicle in motion is provided by employing a plurality of elongated fiber-optic sensors defined by an optical fiber embedded in an encasement of elastomeric material and disposed parallel to each other on the roadway in the path of moving vehicles. Each fiber-optic sensor is provided with contact grid means which can be selectively altered to provide the fiber-optic sensors with sensitivities to vehicular weight different from each other for weighing vehicles in an extended weight range. Switch means are used in conjunction with the fiber-optic sensors to provide signals indicative of the speed of the moving vehicle, the number of axles on the vehicle, weight distribution, tire position, and the wheelbase of the vehicle. The use of a generally N-shaped configuration of switch means also provides a determination of the number of tires on each axle and the tire footprint. When switch means in this configuration are formed of optical fibers, the extent of light transmission through the fibers during contact with the tires of the vehicle is indicative of the vehicle weight.
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Jordan John K.
LaForge John V.
Muhs Jeffrey D.
Tobin, Jr. Kenneth W.
Adams H. W.
Fuller Benjamin R.
Gibson Randy W.
Larcher E. L.
Marasco J. A.
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