Non-contact weighing on screw, drag and belt conveyors

Nucleonic weighing systems consist of a sealed radioactive source and a detector mounted in a frame assembly. The frame is non-contact and is mounted around a conveyor, and it directs a focused beam of radiation to the detector mounted below.

As the weight in the conveyor increases, the energy reaching the detector will decrease, hence weight can be calculated.

The system can provide an output of weight per time period (e.g. tonnes per hour) using a fixed speed conveyor or an analogue speed input signal from the conveyor.