The New Powder Rheometer
The GranuDrum instrument is an automatic powder flow measurement method based on the rotating drum principle.
Granular Material Flow Analyzer
The New Powder Rheometer
The GranuDrum instrument is an automatic powder flow measurement method based on the rotating drum principle.
A horizontal cylinder with transparent side walls called a drum is half filled with the dust sample.
The drum rotates around its axis at an angular speed that varies from 2 rpm to 60 rpm.
A CCD camera takes many snapshots for each speed and the result is surprising and very accurate.