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为了得到永磁体开路剩磁的空间变化规律。本文通过实验测量后,经统计学处理,得出了永磁体开路剩磁按负指数规律衰减的结论,从而为临床上的磁场疗法提供了理论依据。
In order to obtain the spatial variation of residual magnetism of permanent magnet. After the experimental measurement, this paper concludes that the residual magnetism of the permanent magnet attenuates according to the negative exponential law after the statistical processing, and thus provides a theoretical basis for the clinical field therapy.