| 关于互感系数两种定义的深入探讨 |
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| 引用本文： | 周晓泉.关于互感系数两种定义的深入探讨[J].蒙自师范高等专科学校学报,2001,3(2):24-26. |
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| 作者姓名： | 周晓泉 |
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| 作者单位： | 个旧电大基础课教研室，云南个旧661000 |
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| 摘 要： | 当互感系数M是变量时 ,互感系数的两种定义式M =ψ2 1I1和M =-ε2 1/ dI1dt 是两种物理量M静 和M动 的定义式 ,它们不等同。从几何意义上来看 ,前者表示 ψ2 1-I1曲线上点A到原点O的直线的斜率 ,后者表示该曲线在A点处的切线的斜率 ,而且二者关系是M动 =M静 +I1dM静dI1。但是许多教材认为只有M=常数时 ,M =-ε2 1/ dI1dt 才成立 ,这是不完全正确的 ,本文就针对这一问题作详细的论述
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| 关 键 词： | 互感系数 静态互感系数 动态互感系数 |
| 文章编号： | 1008-9128(2001)02-0024-03 |
| 修稿时间： | 2000年11月5日 |
A Further Probe Into the Two Definitions of Mutual Inductance |
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| ZHOU Xiao-quan.A Further Probe Into the Two Definitions of Mutual Inductance[J].Journal of Mengzi Teachers' College,2001,3(2):24-26. |
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| Authors: | ZHOU Xiao-quan |
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| Abstract: | When the mutual inductance M is a variable, the two definitions of the mutual inductance M=ψ 21 I 1 and M=-ε 21 /dI 1dt are the two definitions of M s and M d,whichare different. Judged from the geometry angle, the former means the slope of the straight line form point A on the curve ψ 21 -I 1 to point O, the latter means the slope of the tangent line of the curve at point A, and the relationship between the two is M d=M s+I 1dM sdI 1. But in many textbooks it is thought that, M=-ε 21 /dI 1dt is tenable only when M is a constant, which is not quite correct. This article makes a detailed discussion on this question. |
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| Keywords: | mutual inductance static mutual inductance dinamic mutual inductance definition |
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