Magnetic Circuit Design of Galfenol Composite Cantilever

The magnetic circuit design is one of the most important factors in the design of giant magnetostrictive materials. In order to improve the uniformity of magnetic field, the composite cantilever beam is placed in the center of the hollow coil, the analytical solution of the driving magnetic field is solved, the basic parameters of the coil are determined, and the magnetic leakage reason is analyzed by finite element method. At the same time, the magnetic circuit design method is optimized by using finite element method. After optimization, the uniformity of magnetic induction intensity is improved, which provides reference for the magnetic circuit design of giant magnetostrictive material devices.