Optimization of Two-Dimensional Rotational Single Sheet Tester

In order to improve the uniformity of magnetization and excitation efficiency of the two-dimensional rotational single sheet testers (RSST), In this paper, the simulation data of RSST with different shapes of sample are calculated by finite element method (FEM), and the magnetization uniformity of the surface of different shape samples is compared. A stereoscopic structure is designed by selecting Square Rotational Single Sheet Tester (SRSST) as the optimization object. The coupling effect of the orthogonal magnetic circuit and the influence of stray magnetic field between the magnetic poles are reduced by adding the air gap between the magnetic poles and the sample, the same effects can be caused by adding the shields up and down the sample. The sample magnetization uniformity of the SRSST is improved and the excitation power of the SRSST is reduced.