Lockheed Martin Energy Research Corporation

Martin Marietta Energy Systems, Inc.

John V LaForge

Jeffrey D Muhs

John K Jordan

David L Beshears

Matthew Bligh Scudiere

Robert N Nodine

Gary J Capps

Cliff P White

Kenneth William Tobin, Jr

This system and method of operation weighs and characterizes a moving vehicle traveling on a roadway. The moving vehicle travels across a weight transducer and first and second switching devices. The transducer provides a first set of output signals indicative of vehicle tire loading. The switching devices provide second output signals indicative of vehicle speed and characterization. Processor means receive the first and second output signals and characterize the vehicle; calculate the vehicle speed and calculate the vehicle weight by integrating the second output signals and combining with the vehicle speed.

System and methods for accurately weighing and characterizing moving

System and method for accurately weighing and characterizing moving

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.

Apparatus for weighing and identifying characteristics of a moving

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Knoxville, TN, United States of America

John V LaForge