The mass measured by the load cells is integrated with the belt speed to compute the mass of material moving on the belt, after allowing for the mass of the belt itself. Belt weighers generally include the necessary electronics to perform this calculation, often in the form of a small industrialized microprocessor system.
To calculate the amount of material moving along the belt, load cells measure the mass and combine it with the belt's speed, after subtracting the weight of the belt itself. Belt weighers typically use small computer systems to perform this calculation.