Dry particulate flow rate on a conveyer belt can be measured with the use of a load cell by measuring the weight of the particulate flowing.
The dry particulates are allowed to pass through a conveyer belt, as the flow rate change the particulate falls in the load changes thus it indicates the flow rate.
To measure flow rate, it is only necessary to measure the weight of material on a fixed length of the conveyer belt
The flow rate Q is given by:
Q = WR/L
where W is the weight of material on length L of the weighing platform, and R is the speed of the conveyer belt.