1. The weight on the conveyor belt is                                     
measured by sensing the force on one
or more conveyor idlers via load cell(s).
2. The motion of the material is measured
using a speed sensor which produces
an “output” representing the speed of
belt travel.
3. Because the measured force represents
weight per unit length (i.e., kg/m or lbs/
ft), it can be multiplied by the belt travel
to acquire total weight. (Example:
kg/m x m = kg; lbs/ft x ft = lbs) This
function can be accomplished with
an electronic integrator.