Truck scales (or weighbridges) are large, floor mounted weighing scale systems that can weigh entire vehicles and their contents. By weighing the vehicle both empty and when loaded the load carried by the vehicle can be calculated.
Truck scales / weighbridges can be surface mounted with a ramp leading up a short distance and the weighing equipment underneath or they can be pit mounted with the weighing equipment and platform in a pit to that the weighing surface is level with the road. They are typically built from steel or concrete and by nature are extremely robust.
In earlier versions the weighbridge is installed over a rectangular pit that contains levers that ultimately connect to a balance mechanism. The most complex portion of this type is the arrangement of levers underneath the weigh bridge since the response of the scale must be independent of the distribution of the load. Modern devices use multiple strain gauges that connect to electronic equipment to totalize the sensor inputs.
Pit Mount Weighbridges »
Portable Weighbridges »
Surface Mount Weighbridges »