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8.24.2.2 Test Method—If the magnet is imbedded/attached
, k' E3 Q: R; o3 O. r) das part of a magnetic component, extract the magnet from the5 a. {$ V7 K3 P `' [7 ^
component. If the pole surface of the magnet is flat, calculate
' B0 b+ \3 V) n) A7 t$ Zthe area using the appropriate geometric formula. If the pole is
: M+ h4 ?5 _! M" N" lnot flat (for example, hemispherical), the pole surface area is
9 l- _1 Q7 L* \! O# Vthe maximum cross section of the magnet perpendicular to an$ e4 b7 D8 `; n8 {" ^4 S* w
axis through the magnet poles (see Fig. 37).
$ T t9 |3 H9 p0 x+ h1 Y, I, G7 B* }+ C; ?, l [% i, ?4 k9 J
NOTE 10—On multi-pole magnets use the area of the largest single- e! {8 V% j4 H. I
pole, which can be determined using magnetic field viewing film or
/ [/ {+ Y0 _0 l) r0 Q4 k/ Z$ P% g- j+ x* K x) n, D
好好看看上面的这个note是怎么说的!
3 g' c+ y" |3 ?2 [$ r无论你的形状或磁极的方向是怎样的,都按标准做找到最大的磁极面积来计算就可以了。不是你想怎样做就怎样做的。
' d& e" w) _, s5 P4 r# K/ Q+ R$ vequivalent. |
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