本文根据电磁学中的比奥-沙伐--拉普拉斯定律，推倒出了圆片永磁磁源空间磁感强度的计算公式；并使用数值积分和计算机程序，建立了该公式的计算方法；最后通过实例计算，得出了圆片永磁磁源空间磁感强度的量值分布。为磁生物效应研究中磁源的使用提供了理论依据。%Formulas, which are applied to the space magnetic induction of circular permanent magnet, are deduced from BiotSavart-Laplaces law in electromagnetics. The calculating methods of the formulas are set up with numerical integral and computer program. The space quantity distribution of magnetic induction of a circular permanent magnet is obtained through an objective example. These provide theory basis for the magnet application in the field of magnetic biology effect.
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