Base on the theory of electromagnetic field and magneto hydrodynamic, an apparatus of double-driving by magnetic force media with permanent magnet has been designed and manufactured.

On the base of analyzing a light-power magneto alternator structure, expound the design characteristic and make a model. The correctness of method has been proven.

The reflection and transmission of elastic wave in a multilayered structure composed of elastic base covered with magneto-electro-elastic materials were fully investigated.