V2EX mutual inductance

Mutual Inductance

释义 Definition

互感(互感电感):指两个电路/线圈之间由于一个电路电流变化而在另一个电路中产生感应电动势的现象与量度。互感常用符号 M 表示,单位是亨利(H)。在变压器、耦合线圈与电磁感应分析中非常常见。(该词在工程语境中也常指“互感系数/互感量”这一具体参数。)

发音 Pronunciation (IPA)

/mjutul ndktns/

例句 Examples

A transformer works because of mutual inductance between its coils.
变压器能工作,是因为线圈之间存在互感。

The mutual inductance depends on the geometry, distance, and relative orientation of the two loops, as well as the magnetic permeability of the medium.
互感取决于两回路的几何形状、距离与相对方向,也与介质的磁导率有关。

词源 Etymology

mutual 来自拉丁语 mutuus,意为“相互的、彼此的”;inductance 源于 induce(引起、引入),与电磁学中的“感应(induction)”相关。合在一起,“mutual inductance”字面意思就是“相互的感应量”,用来描述两个回路之间的磁耦合效应。

相关词 Related Words

文学与经典著作 Literary & Notable Works

  • The Feynman Lectures on Physics, Vol. II(费曼《物理学讲义》第二卷,电磁学章节中讨论线圈耦合与互感)
  • Introduction to Electrodynamics by David J. Griffiths(格里菲斯《电动力学导论》,电磁感应与电感章节常出现 mutual inductance)
  • Classical Electrodynamics by J. D. Jackson(杰克逊《经典电动力学》,更一般的互感/耦合与能量表达)
  • Electricity and Magnetism by Purcell & Morin(珀塞尔/莫林《电与磁》,以物理直观方式涉及互感与磁通关联)
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