Importance

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Abstract

Apparatus for weighing vehicles in motion includes a base to be anchored to a roadbed below ground level in the path of moving vehicles and a pair of scale platforms mounted on the base for receiving the wheels on the opposite sides of the moving vehicles. Load cells are provided between the base and the platform for producing signals indicating the load applied by each wheel on the platform. A pair of flexure struts is connected between each platform and the base to apply a preload and permit relative movement therebetween in the vertical direction and to resist relative movement in the horizontal direction. The flexure struts extend lengthwise in the direction of traffic flow and are resistant to loads in that direction while being flexible in the vertical direction to permit application of the preload and flexing of the load cells. The dynamic weight signals from the load cells are converted to digital form and operated on to provide information as to the weights of the passing vehicles.

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First Claim