The paper analyzes the characteristics of the absorbing materials through detailed data, and then studies the manufacturing theory of electromagnetic compatibility about absorbing materials. In the course of the experiment, the writer solved the problem that the reflectivity measurement could not be accurately predicted. The experiment was carried out and finally found that the absorbing material reflectivity modeling simulation experiment with finite integral method is the great method. In the next test process, the writer used the above theory to test the handheld device. Finally, the results show that the finite integral method is worked, and then the absorbing material reflection simulation operation is performed. The method can accurately obtain the range of the test frequency. The writer tested the electromagnetic compatibility of the handheld device and found that the effect of the absorbing material using the method was very obvious, the material could have a good application market.

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Abstract-In this paper, it was mainly discussed the electrical field analysis of the high voltage outlet in the insulation structure, which was a part of the transformers manufacture. Firstly, the electrical field of 500kV transformers-outlet devices inside the enclosure was modeled in Maxwell electrostatics solution type and calculated under the industrial frequency withstands voltage with Finite Element Method. The calculation was used to analyze the intensity of electric field about the oil gaps and that around the equalizing ring surface. Then, a model simplification was made and the shape parameters were defined. Further optimizations from the Maxwell optimetrics department were used to search for the optimal solutions. At last, the solutions were reused in the former model and we could contrast the safety factor of the oil gaps and the intensity of the equalizing ring. The result turned out to be effective to optimize the high voltage outlet in the insulation structure.