Radiometric belt weigher

If  the intensity of the radiation, when it has penetrated the material, is measured with only one detector, then only one value is obtained for the total mass between the emitter and the detector.

However,  this value also depends on other conditions (e.g. occupancy profile), because if the material being conveyed is distributed differently on the conveyor belt with the same conveying capacity, this can cause a different result.

In  such a RGI belt weigher system, measurements are usually made with 5 or more detectors: if the occupancy profile changes, this is reflected in the output signals of the individual detectors, but the sum signal is still correct because only the profile changes, but not the amount of material transported Has.

The  RGI belt weigher system with a multi-detector system is therefore independent of the profile.

The  multi-detector principle allows the arrangement to be largely adapted to the applications:
● So it is difficult with garland ribbons to pass a straight crossbar between the lower and upper run, the placement of the individual detectors can be done easily and according to the measurement requirements.
● In the case of a screw conveyor, the arrangement is made so that the entire material to be conveyed is optimally recorded.

The  result and therefore the accuracy of the measurement using a radiometric belt scale are independent of:
● pollution
● Belt slope
● Wind load
● Belt misalignment
● Belt tension
● Band stiffness
● environmental influences