Design and modelling of a test bench to characterise magnetic fluids

The proposed paper discusses a set-up to monitor the B-H curve of magnetic fluids, which have low permeability. An analytical model confronted to FE simulations is investigated in order to design the targeted set-up. A second modelling is evaluated to obtain the flux density of the characterised fluid, knowing the input current from the primary coil and the induced voltage in the secondary coil. Couple of measurements are performed to validate the final set-up and the methodology.