On this basis, as the permeability of permanent magnetism material is non-linear, two gear wheel's magnetic field is simulated with finite element software, and analysis of the result is carried on.
In Holl's particular porosity, the logic of the double-functioning element -the perpetual flux between two readings and applications - is extended into a field condition.
在霍尔独特的多孔性中，双重功能元素的逻辑——两种解读和应用之间的永恒变迁——被延伸到了实践领域。
3
The principles of point - matching and boundary element methods in calculating electric field are introduced in this paper. Two examples are presented. Some results and comparison are given.