磁场能量密度

MOSFET开关变换电路换流过程的瞬态磁场能量密度的计算

Computation of Transient Magnetic Energy Density of the Commuting Process for MOSFET Converter Circuits

采用有限元数值法计算得出圆片磁源空间磁场的矢量磁位、磁感强度、磁场能量密度量值和空间分布图，并计算绘出磁力线和磁感强度等值线。

The calculating values and space graphics of magnetic vector potential , magnetic induction , magnetic energy density were gained with the finite element method . Magnetic force lines and magnetic induction equivalence lines were drawn also .

避开矢量分析推导磁场能量密度公式

Derivation of the magnetic fieldis energy density formula without vector analysis

本文避开矢量分析，引入通量管概念，应用场元方法，推导磁场能量密度的普遍表达式.方法简单，意义显明。

His paper avoids the vector analysis Adopting the concept of flux tube and using the method of field unit , we derive a general formula for the energy density of the magnetic field . The method is simple and the meaning is manifest .

地球主磁场的能量密度谱及其长期变化

The energy density spectrum and secular variation of the Earth 's main magnetic Field