Patent ID: 7542873
Filing Date: 2009-06-02
Classification: G01N

Abstract:
1. A method of determining the performance of a processing apparatus for processing particulate material, the method comprising: capturing with a first sensor an image of radiation after the radiation has passed through a sample of particulate material to be fed to the processing apparatus, and which radiation has been altered by the particulate material; capturing with a second sensor an image of radiation after the radiation has passed through a sample of particulate material which has exited from the processing apparatus, and which radiation has been altered by the particulate material; determining from the captured images a parameter of the particulate material in each of the sample of material to be fed to the apparatus, and the sample which exits the apparatus; and determining a performance index of the apparatus by comparing the parameter of the material which has exited the apparatus with respect to an expected parameter of the material which has exited the apparatus, and having regard to the parameter of the particulate material fed to the apparatus.