Magnetic shielding effect from multiple configurations of open-type magnetic shielding walls compared to solid plates

Abstract It was determined that a wall composed of aligned strips with gaps could achieve almost the same magnetic shielding effect as a conventional solid plate wall. This new shielding system is called the “open-type magnetic shielding method.” This study reports the experimental results for the magnetic shielding effect of open-type magnetic shielding walls in comparison with conventional solid plates. The magnetic field generator of the experimental model is an approximately 1/15 scale reduced train system. The magnetic shielding structure is composed of a maximum of four walls around this train model. The magnetic flux density leakage from the structures was measured. In the case of multiple walls, the results show that the open-type magnetic shielding method has a little better shielding performance than the conventional method.