Investigation of Magnetic Nanoparticle Motion under a Gradient Magnetic Field by an Electromagnet

Figure 1

(a) Experimental electromagnet; (b) a simplified 2D axisymmetric model. The C-shaped iron yoke in (a) can be modeled as a cylindrical shape in (b) because the magnetic flux converging effect is much the same for the two shapes when the C-shaped yoke is not saturated.

(a)

(b)