  In the paper the novel soft magnetic composite system is investigated. A
ferrofluid emulsion studied demonstrates the strong magnetic properties which
are atypical for commonly known emulsions. Interaction of ferrofluid emulsions
with a magnetic field is considered. Structural transformations in these media,
such as deformation of emulsion microdroplets and emulsion inversion, are
studied. The changes in the relative permeability of emulsion associated with
structural transformations are investigated. The theory of the observed
phenomena is developed, and the feasibility of effectively controlling the
magnetic properties of ferrofluid emulsions by applying a magnetic field is
demonstrated.
