Apparatus For Measuring Flow-rate Of Electromagnetic Granular Media

Author:  Biehle, William C.
Source:  US Patent 4,552,017
Doc ID:  1985002
Year of Publication:  1985
Abstract:  
An apparatus for measuring the flow-rate of ferromagnetic granular media in a gravity-fed and/or low velocity peening apparatus by passing the media in the supply line at substantially constant head pressure through an inductive transducer, wherein the current drawn by the induction coil varies in accordance with changes in the flow-rate.